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#
# This version of the Linux kernel configuration help texts
# corresponds to the kernel versions 2.3.x.
#
# Translations of this file available on the WWW:
#
# - Japanese, maintained by the JF Project (JF@linux.or.jp), at
# http://www.linux.or.jp/JF/JFdocs/Configure.help/
# - Russian, by kaf@linux.nevod.perm.su, at
# http://nevod.perm.su/service/linux/doc/kernel/Configure.help
# - French, by Tane Pierre (tanep@bigfoot.com), at
# http://www.kernelfr.org
# - Spanish, by Carlos Perelló MarÃn (fperllo@ehome.encis.es), at
# http://visar.csustan.edu/~carlos/
# - Italian, by Alessandro Rubini (rubini@linux.it), at
# ftp://ftp-pavia1.linux.it/pub/linux/Configure.help
# - Polish, by Cezar Cichocki (cezar@cs.net.pl), at
# http://www.cs.net.pl/~cezar/Kernel
# - German, by SuSE, at http://www.suse.de/~ke/kernel . This patch
# includes infrastructure to support different languages as well.
#
# To access a document on the WWW, you need to have a direct Internet
# connection and a browser program such as netscape or lynx. If you
# only have email access, you can still use FTP and WWW servers: send
# an email to mail-server@rtfm.mit.edu with the text
# send usenet/news.answers/internet-services/access-via-email
# in the body of the message.
#
# Information about what a kernel is, what it does, how to patch and
# compile it and much more is contained in the Kernel-HOWTO, available
# at http://www.linuxdoc.org/docs.html#howto . Before you start
# compiling, make sure that you have the necessary versions of all
# programs and libraries required to compile and run this kernel; they
# are listed in the file Documentation/Changes. Make sure to read the
# toplevel kernel README file as well.
#
# Format of this file: description<nl>variable<nl>help text<nl><nl>. If
# the question being documented is of type "choice", we list only the
# first occurring config variable. The help texts may contain empty
# lines, but every non-empty line must be indented two positions.
# Order of the help texts does not matter, however, no variable should
# be documented twice: if it is, only the first occurrence will be
# used by Configure. We try to keep the help texts of related variables
# close together. Lines starting with `#' are ignored. To be nice to
# menuconfig, limit your line length to 70 characters. Use emacs'
# kfill.el to edit and ispell.el to spell check this file or you lose.
#
# If you add a help text to this file, please try to be as gentle as
# possible. Don't use unexplained acronyms and generally write for the
# hypothetical ignorant but intelligent user who has just bought a PC,
# removed Windows, installed Linux and is now recompiling the kernel
# for the first time. Tell them what to do if they're unsure. Technical
# information should go in a README in the Documentation directory.
# Mention all the relevant READMEs and HOWTOs in the help text.
# Repetitions are fine since the help texts are not meant to be read
# in sequence.
#
# All this was shamelessly stolen from several different sources. Many
# thanks to all the contributors. Feel free to use these help texts in
# your own kernel configuration tools. The texts are copyrighted (c)
# 1995-1999 by Axel Boldt and many others and are governed by the GNU
# General Public License.
Prompt for development and/or incomplete code/drivers
CONFIG_EXPERIMENTAL
Some of the various things that Linux supports (such as network
drivers, file systems, network protocols, etc.) can be in a state
of development where the functionality, stability, or the level of
testing is not yet high enough for general use. This is usually
known as the "alpha-test" phase amongst developers. If a feature is
currently in alpha-test, then the developers usually discourage
uninformed widespread use of this feature by the general public to
avoid "Why doesn't this work?" type mail messages. However, active
testing and use of these systems is welcomed. Just be aware that it
may not meet the normal level of reliability or it may fail to work
in some special cases. Detailed bug reports from people familiar
with the kernel internals are usually welcomed by the developers
(before submitting bug reports, please read the documents README,
MAINTAINERS, REPORTING_BUGS, Documentation/BUG-HUNTING, and
Documentation/oops-tracing.txt in the kernel source).
This option will also make obsoleted drivers available. These are
drivers that have been replaced by something else, and/or are
scheduled to be removed in a future kernel release.
Unless you intend to help test and develop a feature or driver that
falls into this category, or you have a situation that requires
using these features, you should probably say N here, which will
cause this configure script to present you with fewer choices. If
you say Y here, you will be offered the choice of using features or
drivers that are currently considered to be in the alpha-test phase.
Symmetric Multi Processing
CONFIG_SMP
This enables support for systems with more than one CPU. If you have
a system with only one CPU, like most personal computers, say N. If
you have a system with more than one CPU, say Y.
If you say N here, the kernel will run on single and multiprocessor
machines, but will use only one CPU of a multiprocessor machine. If
you say Y here, the kernel will run on many, but not all,
singleprocessor machines. On a singleprocessor machine, the kernel
will run faster if you say N here.
Note that if you say Y here and choose architecture "586" or
"Pentium" under "Processor family", the kernel will not work on 486
architectures. Similarly, multiprocessor kernels for the "PPro"
architecture may not work on all Pentium based boards.
People using multiprocessor machines who say Y here should also say
Y to "Enhanced Real Time Clock Support", below. The "Advanced Power
Management" code will be disabled if you say Y here.
See also: Documentation/SMP.txt, Documentation/smp.tex,
Documentation/smp.txt, and Documentation/IO-APIC.txt. Also see the
SMP-FAQ on the WWW at http://www.irisa.fr/prive/mentre/smp-faq/ .
If you don't know what to do here, say N.
APIC and IO-APIC Support on Uniprocessors
CONFIG_X86_UP_IOAPIC
This option enables uniprocessor-kernels to switch into IO-APIC mode
if there is an IO-APIC in the system. Such a kernel will still boot
on IO-APIC-less systems with no slowdown at all. SMP kernels include
IO-APIC support unconditionally.
Kernel math emulation
CONFIG_MATH_EMULATION
Linux can emulate a math coprocessor (used for floating point
operations) if you don't have one. 486DX and Pentium processors have
a math coprocessor built in, 486SX and 386 do not, unless you added
a 487DX or 387, respectively. (The messages during boot time can
give you some hints here ["man dmesg"].) Everyone needs either a
coprocessor or this emulation.
If you don't have a math coprocessor, you need to say Y here; if you
say Y here even though you have a coprocessor, the coprocessor will
be used nevertheless. (This behavior can be changed with the kernel
command line option "no387", which comes handy if your coprocessor
is broken. Try "man bootparam" or see the documentation of your boot
loader (lilo or loadlin) about how to pass options to the kernel at
boot time. The lilo procedure is also explained in the SCSI-HOWTO,
available from http://www.linuxdoc.org/docs.html#howto .) This
means that it is a good idea to say Y here if you intend to use this
kernel on different machines.
More information about the internals of the Linux math coprocessor
emulation can be found in arch/i386/math-emu/README.
If you are not sure, say Y; apart from resulting in a 66 KB bigger
kernel, it won't hurt.
Timer and CPU usage LEDs
CONFIG_LEDS
If you say Y here, the LEDs on your machine will be used
to provide useful information about your current system status.
If you are compiling a kernel for a NetWinder or EBSA-285, you will
be able to select which LEDs are active using the options below. If
you are compiling a kernel for the EBSA-110 however, the red LED
will simply flash regularly to indicate that the system is still
functional. It is safe to say Y here if you have a CATS system, but
the driver will do nothing.
Timer LED
CONFIG_LEDS_TIMER
If you say Y here, one of the system LEDs (the green one on the
NetWinder or the amber one on the EBSA285) will flash regularly to
indicate that the system is still operational. This is mainly
useful to kernel hackers who are debugging unstable kernels.
CPU usage LED
CONFIG_LEDS_CPU
If you say Y here, the red LED will be used to give a good real
time indication of CPU usage, by lighting whenever the idle task
is not currently executing.
Kernel FP software completion (EXPERIMENTAL)
CONFIG_MATHEMU
This option is required for IEEE compliant floating point arithmetic
on the Alpha. The only time you would ever not say Y is to say M in
order to debug the code. Say Y unless you know what you are doing.
High Memory support
CONFIG_NOHIGHMEM
If you are compiling a kernel which will never run on a machine
with more than 1 Gigabyte total physical RAM, answer "off"
here (default choice).
Linux can use up to 64 Gigabytes of physical memory on x86 systems.
High memory is all the physical RAM that could not be directly
mapped by the kernel - ie. 3GB if there is 4GB RAM in the system,
7GB if there is 8GB RAM in the system.
If 4 Gigabytes physical RAM or less is used then answer "4GB" here.
If more than 4 Gigabytes is used then answer "64GB" here. This
selection turns Intel PAE (Physical Address Extension) mode on.
PAE implements 3-level paging on IA32 processors. PAE is fully
supported by Linux, PAE mode is implemented on all recent Intel
processors (PPro and better). NOTE: The "64GB" kernel will not
boot CPUs that not support PAE!
Normal PC floppy disk support
CONFIG_BLK_DEV_FD
If you want to use the floppy disk drive(s) of your PC under Linux,
say Y. Information about this driver, especially important for IBM
Thinkpad users, is contained in drivers/block/README.fd. This file
also contains the location of the Floppy driver FAQ as well as
location of the fdutils package used to configure additional
parameters of the driver at run time.
This driver is also available as a module ( = code which can be
inserted in and removed from the running kernel whenever you want).
The module will be called floppy.o. If you want to compile it as a
module, say M here and read Documentation/modules.txt.
Support for PowerMac floppy
CONFIG_MAC_FLOPPY
If you have a SWIM-3 (Super Woz Integrated Machine 3; from Apple)
floppy controller, say Y here. Most commonly found in PowerMacs.
RAM disk support
CONFIG_BLK_DEV_RAM
Saying Y here will allow you to use a portion of your RAM memory as
a block device, so that you can make file systems on it, read and
write to it and do all the other things that you can do with normal
block devices (such as hard drives). It is usually used to load and
store a copy of a minimal root file system off of a floppy into RAM
during the initial install of Linux.
Note that the kernel command line option "ramdisk=XX" is now
obsolete. For details, read Documentation/ramdisk.txt.
If you want to compile this as a module ( = code which can be
inserted in and removed from the running kernel whenever you want),
say M and read Documentation/modules.txt. The module will be called
rd.o.
Most normal users won't need the RAM disk functionality, and can
thus say N here.
Initial RAM disk (initrd) support
CONFIG_BLK_DEV_INITRD
The initial RAM disk is a RAM disk that is loaded by the boot loader
(loadlin or lilo) and that is mounted as root before the normal boot
procedure. It is typically used to load modules needed to mount the
"real" root file system, etc. See Documentation/initrd.txt for
details.
Loop device support
CONFIG_BLK_DEV_LOOP
Saying Y here will allow you to use a regular file as a block
device; you can then create a file system on that block device and
mount it just as you would mount other block devices such as hard
drive partitions, CDROM drives or floppy drives.
This is useful if you want to check an ISO 9660 file system before
burning the CD, or if you want to use floppy images without first
writing them to floppy.
The loop device driver can also be used to "hide" a file system in a
disk partition, floppy, or regular file, either using encryption
(scrambling the data) or steganography (hiding the data in the low
bits of, say, a sound file). This is also safe if the file resides
on a remote file server. If you want to do this, you will first have
to acquire and install a kernel patch from
ftp://ftp.replay.com/pub/crypto/linux/all or
ftp://verden.pvv.org/pub/linux/kerneli/v2.1/ , and then you need to
say Y to this option.
Note that alternative ways to use encrypted file systems are provided
by the cfs package, which can be gotten from
ftp://ftp.replay.com/pub/crypto/disk/ , and the newer tcfs package,
available at http://tcfs.dia.unisa.it/ . You do not need to say Y
here if you want to use one of these. However, using cfs requires
saying Y to "NFS file system support" below while using tcfs requires
applying a kernel patch.
To use the loop device, you need the losetup utility and a recent
version of the mount program, both contained in the util-linux
package. The location and current version number of util-linux is
contained in the file Documentation/Changes.
Note that this loop device has nothing to do with the loopback
device used for network connections from the machine to itself.
If you want to compile this driver as a module ( = code which can be
inserted in and removed from the running kernel whenever you want),
say M here and read Documentation/modules.txt. The module will be
called loop.o.
Most users will answer N here.
Network Block Device support
CONFIG_BLK_DEV_NBD
Saying Y here will allow your computer to be a client for network
block devices, i.e. it will be able to use block devices exported by
servers (mount file systems on them etc.). Communication between
client and server works over TCP/IP networking, but to the client
program this is hidden: it looks like a regular local file access to
a block device special file such as /dev/nd0.
Network block devices also allows you to run a block-device in
userland (making server and client physically the same computer,
communicating using the loopback network device).
Read Documentation/nbd.txt for more information, especially about
where to find the server code, which runs in user space and does not
need special kernel support.
Note that this has nothing to do with the network file systems NFS
or Coda; you can say N here even if you intend to use NFS or Coda.
If you want to compile this driver as a module ( = code which can be
inserted in and removed from the running kernel whenever you want),
say M here and read Documentation/modules.txt. The module will be
called nbd.o.
If unsure, say N.
Enhanced IDE/MFM/RLL disk/cdrom/tape/floppy support
CONFIG_BLK_DEV_IDE
If you say Y here, you will use the full-featured IDE driver to
control up to eight IDE interfaces, each being able to serve a
"master" and a "slave" device, for a total of up to sixteen IDE
disk/cdrom/tape/floppy drives. People with SCSI-only systems
can say N here.
Useful information about large (>540 MB) IDE disks, multiple
interfaces, what to do if IDE devices are not automatically
detected, sound card IDE ports, module support, and other topics, is
contained in Documentation/ide.txt. For detailed information about
hard drives, consult the Disk-HOWTO and the Multi-Disk-HOWTO,
available from http://www.linuxdoc.org/docs.html#howto .
To fine-tune IDE drive/interface parameters for improved
performance, look for the hdparm package at
ftp://metalab.unc.edu/pub/Linux/kernel/patches/diskdrives/ .
If you want to compile this driver as a module ( = code which can be
inserted in and removed from the running kernel whenever you want),
say M here and read Documentation/modules.txt and
Documentation/ide.txt. The module will be called ide.o. Do not
compile this driver as a module if your root file system (the one
containing the directory /) is located on an IDE device.
If you have one or more IDE drives, say Y or M here. If your system
has no IDE drives, or if memory requirements are really tight, you
could say N here, and select the "Old hard disk driver" below
instead to save about 13 KB of memory in the kernel.
Old hard disk (MFM/RLL/IDE) driver
CONFIG_BLK_DEV_HD_ONLY
There are two drivers for MFM/RLL/IDE hard disks. Most people use
the newer enhanced driver, but this old one is still around for two
reasons. Some older systems have strange timing problems and seem to
work only with the old driver (which itself does not work with some
newer systems). The other reason is that the old driver is smaller,
since it lacks the enhanced functionality of the new one. This makes
it a good choice for systems with very tight memory restrictions, or
for systems with only older MFM/RLL/ESDI drives. Choosing the old
driver can save 13 KB or so of kernel memory.
If you are unsure, then just choose the Enhanced IDE/MFM/RLL driver
instead of this one. For more detailed information, read the
Disk-HOWTO, available from
http://www.linuxdoc.org/docs.html#howto .
People with SCSI-only systems can say N here.
Use old disk-only driver on primary interface
CONFIG_BLK_DEV_HD_IDE
There are two drivers for MFM/RLL/IDE disks. Most people use just
the new enhanced driver by itself. This option however installs the
old hard disk driver to control the primary IDE/disk interface in
the system, leaving the new enhanced IDE driver to take care of only
the 2nd/3rd/4th IDE interfaces. Doing this will prevent you from
having an IDE/ATAPI CDROM or tape drive connected to the primary IDE
interface. Choosing this option may be useful for older systems
which have MFM/RLL/ESDI controller+drives at the primary port
address (0x1f0), along with IDE drives at the secondary/3rd/4th port
addresses.
Normally, just say N here; you will then use the new driver for all
4 interfaces.
People with SCSI-only systems don't need this and can say N here as
well.
Include IDE/ATA-2 DISK support
CONFIG_BLK_DEV_IDEDISK
This will include enhanced support for MFM/RLL/IDE hard disks. If
you have a MFM/RLL/IDE disk, and there is no special reason to use
the old hard disk driver instead, say Y. If you have an SCSI-only
system, you can say N here.
If you want to compile this driver as a module ( = code which can be
inserted in and removed from the running kernel whenever you want),
say M here and read Documentation/modules.txt. The module will be
called ide-disk.o. Do not compile this driver as a module if your
root file system (the one containing the directory /) is located on
the IDE disk. If unsure, say Y.
Use multi-mode by default
CONFIG_IDEDISK_MULTI_MODE
If you get this error, try to say Y here:
hda: set_multmode: status=0x51 { DriveReady SeekComplete Error }
hda: set_multmode: error=0x04 { DriveStatusError }
If in doubt, say N.
Include IDE/ATAPI CDROM support
CONFIG_BLK_DEV_IDECD
If you have a CDROM drive using the ATAPI protocol, say Y. ATAPI is
a newer protocol used by IDE CDROM and TAPE drives, similar to the
SCSI protocol. Most new CDROM drives use ATAPI, including the
NEC-260, Mitsumi FX400, Sony 55E, and just about all non-SCSI
double(2X) or better speed drives.
If you say Y here, the CDROM drive will be identified at boot time
along with other IDE devices, as "hdb" or "hdc", or something
similar (check the boot messages with dmesg). If this is your only
CDROM drive, you can say N to all other CDROM options, but be sure
to say Y or M to "ISO 9660 CDROM file system support".
Read the CDROM-HOWTO, available from
http://www.linuxdoc.org/docs.html#howto and the file
Documentation/cdrom/ide-cd. Note that older versions of lilo (the
Linux boot loader) cannot properly deal with IDE/ATAPI CDROMs, so
install lilo-16 or higher, available from
ftp://metalab.unc.edu/pub/Linux/system/boot/lilo .
If you want to compile the driver as a module ( = code which can be
inserted in and removed from the running kernel whenever you want),
say M here and read Documentation/modules.txt. The module will be
called ide-cd.o.
Include IDE/ATAPI TAPE support
CONFIG_BLK_DEV_IDETAPE
If you have an IDE tape drive using the ATAPI protocol, say Y.
ATAPI is a newer protocol used by IDE tape and CDROM drives, similar
to the SCSI protocol. If you have an SCSI tape drive however, you
can say N here.
This now includes the OnStream DI-30 tape drive support.
Will not work with SCSI protocol, until there is support for the
SC-30 and SC-50 versions.
If you say Y here, the tape drive will be identified at boot time
along with other IDE devices, as "hdb" or "hdc", or something
similar, and will be mapped to a character device such as "ht0"
(check the boot messages with dmesg). Be sure to consult the
drivers/block/ide-tape.c and Documentation/ide.txt files for usage
information.
If you want to compile the driver as a module ( = code which can be
inserted in and removed from the running kernel whenever you want),
say M here and read Documentation/modules.txt. The module will be
called ide-tape.o.
Include IDE/ATAPI FLOPPY support
CONFIG_BLK_DEV_IDEFLOPPY
If you have an IDE floppy drive which uses the ATAPI protocol,
answer Y. ATAPI is a newer protocol used by IDE CDROM/tape/floppy
drives, similar to the SCSI protocol.
The LS-120 and the IDE/ATAPI Iomega ZIP drive are also supported by
this driver. (ATAPI PD-CD/CDR drives are not supported by this
driver; support for PD-CD/CDR drives is available if you answer Y to
"SCSI emulation support", below).
If you say Y here, the FLOPPY drive will be identified along with
other IDE devices, as "hdb" or "hdc", or something similar (check
the boot messages with dmesg).
If you want to compile the driver as a module ( = code which can be
inserted in and removed from the running kernel whenever you want),
say M here and read Documentation/modules.txt. The module will be
called ide-floppy.o.
SCSI emulation support
CONFIG_BLK_DEV_IDESCSI
This will provide SCSI host adapter emulation for IDE ATAPI devices,
and will allow you to use a SCSI device driver instead of a native
ATAPI driver.
Must pass "hdx=scsi" per devices if you want the native EIDE sub-drivers
to skip over the native support. This is required for use of CD-RW's.
This is useful if you have an ATAPI device for which no native
driver has been written (for example, an ATAPI PD-CD or CDR drive);
you can then use this emulation together with an appropriate SCSI
device driver. In order to do this, say Y here and to "SCSI support"
and "SCSI generic support", below.
Note that this option does NOT allow you to attach SCSI devices to a
box that doesn't have a SCSI host adapter installed.
If both this SCSI emulation and native ATAPI support are compiled
into the kernel, the native support will be used.
People with SCSI-only systems can say N here. If unsure, say N.
ISA-PNP EIDE support
CONFIG_BLK_DEV_ISAPNP
If you have an ISA EIDE card that is PnP and requires setup first
before scanning for devices, say Y here.
If unsure, say N.
CMD640 chipset bugfix/support
CONFIG_BLK_DEV_CMD640
The CMD-Technologies CMD640 IDE chip is used on many common 486 and
Pentium motherboards, usually in combination with a "Neptune" or
"SiS" chipset. Unfortunately, it has a number of rather nasty
design flaws that can cause severe data corruption under many common
conditions. Say Y here to include code which tries to automatically
detect and correct the problems under Linux. This option also
enables access to the secondary IDE ports in some CMD640 based
systems.
This driver will work automatically in PCI based systems (most new
systems have PCI slots). But if your system uses VESA local bus
(VLB) instead of PCI, you must also supply a kernel boot parameter
to enable the CMD640 bugfix/support: "ide0=cmd640_vlb". (Try "man
bootparam" or see the documentation of your boot loader about how to
pass options to the kernel. The lilo procedure is also explained in
the SCSI-HOWTO, available from
http://www.linuxdoc.org/docs.html#howto .)
The CMD640 chip is also used on add-in cards by Acculogic, and on
the "CSA-6400E PCI to IDE controller" that some people have. For
details, read Documentation/ide.txt.
People with SCSI-only systems should say N here. If unsure, say Y.
CMD640 enhanced support
CONFIG_BLK_DEV_CMD640_ENHANCED
This option includes support for setting/autotuning PIO modes and
prefetch on CMD640 IDE interfaces. For details, read
Documentation/ide.txt. If you have a CMD640 IDE interface and your
BIOS does not already do this for you, then say Y here. Otherwise
say N.
RZ1000 chipset bugfix/support
CONFIG_BLK_DEV_RZ1000
The PC-Technologies RZ1000 IDE chip is used on many common 486 and
Pentium motherboards, usually along with the "Neptune" chipset.
Unfortunately, it has a rather nasty design flaw that can cause
severe data corruption under many conditions. Say Y here to include
code which automatically detects and corrects the problem under
Linux. This may slow disk throughput by a few percent, but at least
things will operate 100% reliably.
People with SCSI-only systems should say N here. If unsure, say Y.
Cyrix CS5530 MediaGX chipset support
CONFIG_BLK_DEV_CS5530
Include support for UDMA on the Cyrix MediaGX 5530 chipset. This
will automatically be detected and configured if found.
It is safe to say Y to this question.
Generic PCI IDE chipset support
CONFIG_BLK_DEV_IDEPCI
Say Y here for PCI systems which use IDE drive(s).
This option helps the IDE driver to automatically detect and
configure all PCI-based IDE interfaces in your system.
People with SCSI-only systems should say N here; if unsure say Y.
Generic PCI bus-master DMA support
CONFIG_BLK_DEV_IDEDMA_PCI
If your PCI system uses IDE drive(s) (as opposed to SCSI, say) and
is capable of bus-master DMA operation (most Pentium PCI systems),
you will want to say Y here to reduce CPU overhead. You can then use
the "hdparm" utility to enable DMA for drives for which it was not
enabled automatically. By default, DMA is not enabled automatically
for these drives, but you can change that by saying Y to the
following question "Use DMA by default when available". You can get
the latest version of the hdparm utility from
ftp://metalab.unc.edu/pub/Linux/system/hardware/ .
Read the comments at the beginning of drivers/block/idedma.c and the
file Documentation/ide.txt for more information.
It is safe to say Y to this question.
Good-Bad DMA Model-Firmware (EXPERIMENTAL)
CONFIG_IDEDMA_NEW_DRIVE_LISTINGS
If you say Y here, the model and firmware revision of your drive
will be compared against a blacklist of buggy drives that claim to
be (U)DMA capable but aren't. This is a blanket on/off test with no
speed limit options.
Straight GNU GCC 2.7.3/2.8.X compilers are known to be safe;
whereas, many versions of EGCS have a problem and miscompile if you
say Y here.
If in doubt, say N.
Boot off-board chipsets first support
CONFIG_BLK_DEV_OFFBOARD
Normally, IDE controllers built into the motherboard (on-board
controllers) are assigned to ide0 and ide1 while those on add-in PCI
cards (off-board controllers) are relegated to ide2 and ide3.
Answering Y here will allow you to reverse the situation, with
off-board controllers on ide0/1 and on-board controllers on ide2/3.
This can improve the usability of some boot managers such as LILO
when booting from a drive on an off-board controller.
If you say Y here, and you actually want to reverse the device scan
order as explained above, you also need to issue the kernel command
line option "pci=reverse". (Try "man bootparam" or see the
documentation of your boot loader (lilo or loadlin) about how to
pass options to the kernel at boot time. The lilo procedure is also
explained in the SCSI-HOWTO, available from
http://www.linuxdoc.org/docs.html#howto .)
Note that, if you do this, the order of the hd* devices will be
rearranged which may require modification of fstab and other files.
If in doubt, say N.
Use DMA by default when available
CONFIG_IDEDMA_PCI_AUTO
Prior to kernel version 2.1.112, Linux used to automatically use
DMA for IDE drives and chipsets which support it. Due to concerns
about a couple of cases where buggy hardware may have caused damage,
the default is now to NOT use DMA automatically. To revert to the
previous behavior, say Y to this question.
If you suspect your hardware is at all flakey, say N here.
Do NOT email the IDE kernel people regarding this issue!
It is normally safe to answer Y to this question unless your
motherboard uses a VIA VP2 chipset, in which case you should say N.
AEC6210 chipset support
CONFIG_BLK_DEV_AEC6210
This driver adds up to 4 more EIDE devices sharing a single
interrupt. This add-on card is a bootable PCI UDMA controller. In
order to get this card to initialize correctly in some cases, you
should say Y here, and preferably also to "Use DMA by default when
available".
Please read the comments at the top of drivers/block/aec6210.c
ALI M15x3 chipset support
CONFIG_BLK_DEV_ALI15X3
This driver ensures (U)DMA support for ALI 1543 and 1543C,
1535, 1535D onboard chipsets. It also tests for Simplex mode and
enables normal dual channel support.
If you say Y here, you also need to say Y to "Use DMA by default
when available", above.
Please read the comments at the top of drivers/block/alim15x3.c
If unsure, say N.
AMD7409 chipset support (EXPERIMENTAL)
CONFIG_BLK_DEV_AMD7409
This driver ensures (U)DMA support for AMD756 Viper chipset.
If you say Y here, you also need to say Y to "Use DMA by default
when available", above.
Please read the comments at the top of drivers/block/amd7409.c
If unsure, say N.
CMD64X chipset support
CONFIG_BLK_DEV_CMD64X
Say Y here if you have an IDE controller which uses any of these chipsets,
CMD643, CMD646, or CMD648.
CMD64X chipset RAID support (EXPERIMENTAL) (WIP)
CONFIG_BLK_DEV_CMD64X
Work in progress for hardware raid ata-33/66..........rev 7 minimum.
Say N for now.
CY82C693 chipset support (EXPERIMENTAL)
CONFIG_BLK_DEV_CY82C693
This driver adds detection and support for the CY82C693 chipset
used on Digital's PC-Alpha 164SX boards.
If you say Y here, you need to say Y to "Use DMA by default
when available" as well.
HPT34X chipset support
CONFIG_BLK_DEV_HPT34X
This driver adds up to 4 more EIDE devices sharing a single
interrupt. The HPT343 chipset in its current form is a non-bootable
controller; the HPT345/HPT363 chipset is a bootable (needs BIOS FIX)
PCI UDMA controllers. This driver requires dynamic tuning of the
chipset during the ide-probe at boot time. It is reported to support
DVD II drives, by the manufacturer.
HPT34X DMA support (EXPERIMENTAL)
CONFIG_BLK_DEV_HPT34X_DMA
you need to say Y to "Use DMA by default when available" if you say
Y here.
Please read the comments at the top of drivers/block/hpt34x.c
HPT366 chipset support
CONFIG_BLK_DEV_HPT366
This is an Ultra DMA chipset for ATA-66.
This driver adds up to 4 more EIDE devices sharing a single
interrupt. The HPT366 chipset in its current form is a non-bootable.
This driver requires dynamic tuning of the chipset during the
ide-probe at boot. It is reported to support DVD II drives, by the
manufacturer.
Please read the comments at the top of drivers/block/hpt366.c
HPT366 Fast Interrupt support (EXPERIMENTAL) (WIP)
CONFIG_HPT366_FAST_IRQ_PREDICTION
If unsure, say N.
HPT366 mode three unsupported (EXPERIMENTAL) (WIP)
CONFIG_HPT366_MODE3
This is an undocumented mode that the HA366 can default to in many cases.
If unsure, say N.
NS87415 support (EXPERIMENTAL)
CONFIG_BLK_DEV_NS87415
This driver adds detection and support for the NS87415 chip
(used in SPARC64, among others).
Please read the comments at the top of drivers/block/ns87415.c.
OPTi 82C621 enhanced support (EXPERIMENTAL)
CONFIG_BLK_DEV_OPTI621
This is a driver for the OPTi 82C621 EIDE controller.
Please read the comments at the top of drivers/block/opti621.c.
Intel PIIXn chipsets support
CONFIG_BLK_DEV_PIIX
This driver adds PIO mode setting and tuning for all PIIX IDE
controllers by Intel. Since the BIOS can sometimes improperly tune
PIO 0-4 mode settings, this allows dynamic tuning of the chipset
via the standard end-user tool 'hdparm'.
Please read the comments at the top of drivers/block/piix.c
Should also include "PIIXn Tuning support" CONFIG_BLK_DEV_PIIX_TUNING
If unsure, say Y.
PIIXn Tuning support
CONFIG_BLK_DEV_PIIX_TUNING
This driver extension adds DMA mode setting and tuning for all PIIX
IDE controllers by Intel. Since the BIOS can sometimes improperly
set up the device/adapter combination and speed limits, it has
become a necessity to back/forward speed devices as needed.
Case 430HX/440FX PIIX3 need speed limits to reduce UDMA to DMA mode
2 if the BIOS can not perform this task at initialization.
If unsure, say Y.
PROMISE PDC20246/PDC20262 support
CONFIG_BLK_DEV_PDC202XX
Promise Ultra33 or PDC20246
This driver adds up to 4 more EIDE devices sharing a single
interrupt. This add-on card is a bootable PCI UDMA controller. Since
multiple cards can be installed and there are BIOS ROM problems that
happen if the BIOS revisions of all installed cards (three-max) do
not match, the driver attempts to do dynamic tuning of the chipset at
boot-time for max-speed. Ultra33 BIOS 1.25 or newer is required for
more than one card. This card may require that you say Y to "Special
UDMA Feature (EXPERIMENTAL)".
Promise Ultra66 or PDC20262
This driver adds up to 4 more EIDE devices sharing a single
interrupt. This add-on card is a bootable PCI UDMA ATA-66
controller. The driver attempts to dynamic tuning of the chipset at
boot-time for max-speed. Note tested limits are UDMA-2. Ultra66 BIOS
1.11 or newer required.
If you say Y here, you need to say Y to "Use DMA by default when
available" as well.
Please read the comments at the top of drivers/block/pdc202xx.c
If unsure, say N.
Special UDMA Feature
CONFIG_PDC202XX_FORCE_BURST_BIT
For PDC20246 and PDC20262 Ultra DMA chipsets. Designed originally
for PDC20246/Ultra33 that has BIOS setup failures when using 3 or
more cards.
Please read the comments at the top of drivers/block/pdc202xx.c
If unsure, say N.
Special Mode Feature (EXPERIMENTAL)
CONFIG_PDC202XX_FORCE_MASTER_MODE
For PDC20246 and PDC20262 Ultra DMA chipsets. This is reserved for
possible Hardware RAID 0,1 for the FastTrak Series.
Say N.
Winbond SL82c105 support
CONFIG_BLK_DEV_SL82C105
If you have a Winbond SL82c105 IDE controller, say Y here to enable
special configuration for this chip. This is common on various CHRP
motherboards, but could be used elsewhere. If in doubt, say Y.
Tekram TRM290 chipset support (EXPERIMENTAL)
CONFIG_BLK_DEV_TRM290
This driver adds support for bus master DMA transfers
using the Tekram TRM290 PCI IDE chip. Volunteers are
needed for further tweaking and development.
Please read the comments at the top of drivers/block/trm290.c.
VIA82CXXX chipset support (EXPERIMENTAL)
CONFIG_BLK_DEV_VIA82CXXX
This allows you to to configure your chipset for a better use while
running (U)DMA: it will allow you to enable efficiently the second
channel dma usage, as it is may not be set by BIOS. It allows you to
run a kernel command line at boot time in order to set fifo config.
If no command line is provided, it will try to set fifo configuration
at its best. It will allow you to get a proc/ide/via display
(while running a "cat") provided you enabled "proc" support.
Please read the comments at the top of drivers/block/via82cxxx.c
If you say Y here, you also need to say Y to "Use DMA by default
when available", above.
If unsure, say N.
Other IDE chipset support
CONFIG_IDE_CHIPSETS
Say Y here if you want to include enhanced support for various IDE
interface chipsets used on motherboards and add-on cards. You can
then pick your particular IDE chip from among the following options.
This enhanced support may be necessary for Linux to be able to
access the 3rd/4th drives in some systems. It may also enable
setting of higher speed I/O rates to improve system performance with
these chipsets. Most of these also require special kernel boot
parameters to actually turn on the support at runtime; you can find
a list of these in the file Documentation/ide.txt.
People with SCSI-only systems can say N here.
Generic 4 drives/port support
CONFIG_BLK_DEV_4DRIVES
Certain older chipsets, including the Tekram 690CD, use a single set
of I/O ports at 0x1f0 to control up to four drives, instead of the
customary two drives per port. Support for this can be enabled at
runtime using the "ide0=four" kernel boot parameter if you say Y
here.
ALI M14xx support
CONFIG_BLK_DEV_ALI14XX
This driver is enabled at runtime using the "ide0=ali14xx" kernel
boot parameter. It enables support for the secondary IDE interface
of the ALI M1439/1443/1445/1487/1489 chipsets, and permits faster
I/O speeds to be set as well. See the files Documentation/ide.txt
and drivers/block/ali14xx.c for more info.
DTC-2278 support
CONFIG_BLK_DEV_DTC2278
This driver is enabled at runtime using the "ide0=dtc2278" kernel
boot parameter. It enables support for the secondary IDE interface
of the DTC-2278 card, and permits faster I/O speeds to be set as
well. See the Documentation/ide.txt and drivers/block/dtc2278.c
files for more info.
Holtek HT6560B support
CONFIG_BLK_DEV_HT6560B
This driver is enabled at runtime using the "ide0=ht6560b" kernel
boot parameter. It enables support for the secondary IDE interface
of the Holtek card, and permits faster I/O speeds to be set as well.
See the Documentation/ide.txt and drivers/block/ht6560b.c files for
more info.
PROMISE DC4030 support (EXPERIMENTAL)
CONFIG_BLK_DEV_PDC4030
This driver provides support for the secondary IDE interface and
cache of Promise IDE chipsets, e.g. DC4030 and DC5030. This driver
is known to incur timeouts/retries during heavy I/O to drives
attached to the secondary interface. CDROM and TAPE devices are not
supported yet. This driver is enabled at runtime using the
"ide0=dc4030" kernel boot parameter. See the Documentation/ide.txt
and drivers/block/pdc4030.c files for more info.
QDI QD6580 support
CONFIG_BLK_DEV_QD6580
This driver is enabled at runtime using the "ide0=qd6580" kernel
boot parameter. It permits faster I/O speeds to be set. See the
files Documentation/ide.txt and drivers/block/qd6580.c for more
info.
UMC 8672 support
CONFIG_BLK_DEV_UMC8672
This driver is enabled at runtime using the "ide0=umc8672" kernel
boot parameter. It enables support for the secondary IDE interface
of the UMC-8672, and permits faster I/O speeds to be set as well.
See the files Documentation/ide.txt and drivers/block/umc8672.c for
more info.
PS/2 ESDI hard disk support
CONFIG_BLK_DEV_PS2
Say Y here if you have a PS/2 machine with a MCA bus and an ESDI
hard disk.
If you want to compile the driver as a module ( = code which can be
inserted in and removed from the running kernel whenever you want),
say M here and read Documentation/modules.txt. The module will be
called ps2esdi.o.
Amiga builtin Gayle IDE interface support
CONFIG_BLK_DEV_GAYLE
This is the IDE driver for the builtin IDE interface on some Amiga
models. It supports both the `A1200 style' (used in A600 and A1200)
and `A4000 style' (used in A4000 and A4000T) of the Gayle IDE
interface. Say Y if you have such an Amiga model and want to use IDE
devices (hard disks, CD-ROM drives, etc.) that are connected to the
builtin IDE interface.
Falcon IDE interface support
CONFIG_BLK_DEV_FALCON_IDE
This is the IDE driver for the builtin IDE interface on the Atari
Falcon. Say Y if you have a Falcon and want to use IDE devices (hard
disks, CD-ROM drives, etc.) that are connected to the builtin IDE
interface.
Amiga Buddha/Catweasel IDE interface support (EXPERIMENTAL)
CONFIG_BLK_DEV_BUDDHA
This is the IDE driver for the IDE interfaces on the Buddha and
Catweasel expansion boards. It supports up to two interfaces on the
Buddha and three on the Catweasel.
Say Y if you have a Buddha or Catweasel expansion board and want to
use IDE devices (hard disks, CD-ROM drives, etc.) that are connected
to one of its IDE interfaces.
Amiga IDE Doubler support (EXPERIMENTAL)
CONFIG_BLK_DEV_IDEDOUBLER
This driver provides support for the so called `IDE doublers' (made
by various manufacturers, e.g. Eyetech) that can be connected to the
builtin IDE interface of some Amiga models. Using such an IDE
doubler, you can connect up to four instead of two IDE devices on
the Amiga's builtin IDE interface.
Note that the normal Amiga Gayle IDE driver may not work correctly
if you have an IDE doubler and don't enable this driver!
Say Y if you have an IDE doubler. The driver is enabled at kernel
runtime using the "ide=doubler" kernel boot parameter.
Support for PowerMac IDE devices (must also enable IDE)
CONFIG_BLK_DEV_IDE_PMAC
No help for CONFIG_BLK_DEV_IDE_PMAC
PowerMac IDE DMA support
CONFIG_BLK_DEV_IDEDMA_PMAC
No help for CONFIG_BLK_DEV_IDEDMA_PMAC
Use DMA by default
CONFIG_IDEDMA_PMAC_AUTO
No help for CONFIG_IDEDMA_PMAC_AUTO
Macintosh Quadra/Powerbook IDE interface support
CONFIG_BLK_DEV_MAC_IDE
This is the IDE driver for the builtin IDE interface on some m68k
Macintosh models. It supports both the `Quadra style' (used in
Quadra/ Centris 630 and Performa 588 models) and `Powerbook style'
(used in the Powerbook 150 and 190 models) IDE interface.
Say Y if you have such an Macintosh model and want to use IDE
devices (hard disks, CD-ROM drives, etc.) that are connected to the
builtin IDE interface.
ICS IDE interface support
CONFIG_BLK_DEV_IDE_ICSIDE
No help for CONFIG_BLK_DEV_IDE_ICSIDE
ICS DMA support
CONFIG_BLK_DEV_IDEDMA_ICS
No help for CONFIG_BLK_DEV_IDEDMA_ICS
Use ICS DMA by default
CONFIG_IDEDMA_ICS_AUTO
No help for CONFIG_IDEDMA_ICS_AUTO
RapIDE interface support
CONFIG_BLK_DEV_IDE_RAPIDE
No help for CONFIG_BLK_DEV_IDE_RAPIDE
XT hard disk support
CONFIG_BLK_DEV_XD
Very old 8 bit hard disk controllers used in the IBM XT computer
will be supported if you say Y here.
If you want to compile the driver as a module ( = code which can be
inserted in and removed from the running kernel whenever you want),
say M here and read Documentation/modules.txt. The module will be
called xd.o.
It's pretty unlikely that you have one of these: say N.
Mylex DAC960/DAC1100 PCI RAID Controller support
CONFIG_BLK_DEV_DAC960
This driver adds support for the Mylex DAC960, AcceleRAID, and
eXtremeRAID PCI RAID controllers. See the file
Documentation/README.DAC960 for further information about this
driver.
If you want to compile the driver as a module ( = code which can be
inserted in and removed from the running kernel whenever you want),
say M here and read Documentation/modules.txt. The module will be
called DAC960.o.
Parallel port IDE device support
CONFIG_PARIDE
There are many external CD-ROM and disk devices that connect through
your computer's parallel port. Most of them are actually IDE devices
using a parallel port IDE adapter. This option enables the PARIDE
subsystem which contains drivers for many of these external drives.
Read linux/Documentation/paride.txt for more information.
If you have said Y to the "Parallel-port support" configuration
option, you may share a single port between your printer and other
parallel port devices. Answer Y to build PARIDE support into your
kernel, or M if you would like to build it as a loadable module. If
your parallel port support is in a loadable module, you must build
PARIDE as a module. If you built PARIDE support into your kernel,
you may still build the individual protocol modules and high-level
drivers as loadable modules. If you build this support as a module,
it will be called paride.o.
To use the PARIDE support, you must say Y or M here and also to at
least one high-level driver (e.g. "Parallel port IDE disks",
"Parallel port ATAPI CD-ROMs", "Parallel port ATAPI disks" etc.) and
to at least one protocol driver (e.g. "ATEN EH-100 protocol",
"MicroSolutions backpack protocol", "DataStor Commuter protocol"
etc.).
Parallel port IDE disks
CONFIG_PARIDE_PD
This option enables the high-level driver for IDE-type disk devices
connected through a parallel port. If you chose to build PARIDE
support into your kernel, you may answer Y here to build in the
parallel port IDE driver, otherwise you should answer M to build
it as a loadable module. The module will be called pd.o. You
must also have at least one parallel port protocol driver in your
system. Among the devices supported by this driver are the SyQuest
EZ-135, EZ-230 and SparQ drives, the Avatar Shark and the backpack
hard drives from MicroSolutions.
Parallel port ATAPI CD-ROMs
CONFIG_PARIDE_PCD
This option enables the high-level driver for ATAPI CD-ROM devices
connected through a parallel port. If you chose to build PARIDE
support into your kernel, you may answer Y here to build in the
parallel port ATAPI CD-ROM driver, otherwise you should answer M to
build it as a loadable module. The module will be called pcd.o. You
must also have at least one parallel port protocol driver in your
system. Among the devices supported by this driver are the
MicroSolutions backpack CD-ROM drives and the Freecom Power CD. If
you have such a CD-ROM drive, you should also say Y or M to "ISO
9660 CDROM file system support" below, because that's the file system
used on CDROMs.
Parallel port ATAPI disks
CONFIG_PARIDE_PF
This option enables the high-level driver for ATAPI disk devices
connected through a parallel port. If you chose to build PARIDE
support into your kernel, you may answer Y here to build in the
parallel port ATAPI disk driver, otherwise you should answer M
to build it as a loadable module. The module will be called pf.o.
You must also have at least one parallel port protocol driver in
your system. Among the devices supported by this driver are the
MicroSolutions backpack PD/CD drive and the Imation Superdisk
LS-120 drive.
Parallel port ATAPI tapes
CONFIG_PARIDE_PT
This option enables the high-level driver for ATAPI tape devices
connected through a parallel port. If you chose to build PARIDE
support into your kernel, you may answer Y here to build in the
parallel port ATAPI disk driver, otherwise you should answer M
to build it as a loadable module. The module will be called pt.o.
You must also have at least one parallel port protocol driver in
your system. Among the devices supported by this driver is the
parallel port version of the HP 5GB drive.
Parallel port generic ATAPI devices
CONFIG_PARIDE_PG
This option enables a special high-level driver for generic ATAPI
devices connected through a parallel port. The driver allows user
programs, such as cdrecord, to send ATAPI commands directly to a
device.
If you chose to build PARIDE support into your kernel, you may
answer Y here to build in the parallel port generic ATAPI driver,
otherwise you should answer M to build it as a loadable module. The
module will be called pg.o.
You must also have at least one parallel port protocol driver in
your system.
This driver implements an API loosely related to the generic SCSI
driver. See /usr/include/linux/pg.h for details.
You can obtain the most recent version of cdrecord from
ftp://ftp.fokus.gmd.de/pub/unix/cdrecord/ . Versions 1.6.1a3 and
later fully support this driver.
ATEN EH-100 protocol
CONFIG_PARIDE_ATEN
This option enables support for the ATEN EH-100 parallel port IDE
protocol. This protocol is used in some inexpensive low performance
parallel port kits made in Hong Kong. If you chose to build PARIDE
support into your kernel, you may answer Y here to build in the
protocol driver, otherwise you should answer M to build it as a
loadable module. The module will be called aten.o. You must also
have a high-level driver for the type of device that you want to
support.
MicroSolutions backpack protocol
CONFIG_PARIDE_BPCK
This option enables support for the MicroSolutions backpack parallel
port IDE protocol. If you chose to build PARIDE support into your
kernel, you may answer Y here to build in the protocol driver,
otherwise you should answer M to build it as a loadable module. The
module will be called bpck.o. You must also have a high-level driver
for the type of device that you want to support.
DataStor Commuter protocol
CONFIG_PARIDE_COMM
This option enables support for the Commuter parallel port IDE
protocol from DataStor. If you chose to build PARIDE support
into your kernel, you may answer Y here to build in the protocol
driver, otherwise you should answer M to build it as a loadable
module. The module will be called comm.o. You must also have
a high-level driver for the type of device that you want to support.
DataStor EP-2000 protocol
CONFIG_PARIDE_DSTR
This option enables support for the EP-2000 parallel port IDE
protocol from DataStor. If you chose to build PARIDE support
into your kernel, you may answer Y here to build in the protocol
driver, otherwise you should answer M to build it as a loadable
module. The module will be called dstr.o. You must also have
a high-level driver for the type of device that you want to support.
Shuttle EPAT/EPEZ protocol
CONFIG_PARIDE_EPAT
This option enables support for the EPAT parallel port IDE protocol.
EPAT is a parallel port IDE adapter manufactured by Shuttle
Technology and widely used in devices from major vendors such as
Hewlett-Packard, SyQuest, Imation and Avatar. If you chose to build
PARIDE support into your kernel, you may answer Y here to build in
the protocol driver, otherwise you should answer M to build it as a
loadable module. The module will be called epat.o. You must also
have a high-level driver for the type of device that you want to
support.
Shuttle EPIA protocol
CONFIG_PARIDE_EPIA
This option enables support for the (obsolete) EPIA parallel port
IDE protocol from Shuttle Technology. This adapter can still be
found in some no-name kits. If you chose to build PARIDE support
into your kernel, you may answer Y here to build in the protocol
driver, otherwise you should answer M to build it as a loadable
module. The module will be called epia.o. You must also have a
high-level driver for the type of device that you want to support.
FIT TD-2000 protocol
CONFIG_PARIDE_FIT2
This option enables support for the TD-2000 parallel port IDE
protocol from Fidelity International Technology. This is a simple
(low speed) adapter that is used in some portable hard drives. If
you chose to build PARIDE support into your kernel, you may answer Y
here to build in the protocol driver, otherwise you should answer M
to build it as a loadable module. The module will be called ktti.o.
You must also have a high-level driver for the type of device that
you want to support.
FIT TD-3000 protocol
CONFIG_PARIDE_FIT3
This option enables support for the TD-3000 parallel port IDE
protocol from Fidelity International Technology. This protocol is
used in newer models of their portable disk, CD-ROM and PD/CD
devices. If you chose to build PARIDE support into your kernel, you
may answer Y here to build in the protocol driver, otherwise you
should answer M to build it as a loadable module. The module will be
called fit3.o. You must also have a high-level driver for the type
of device that you want to support.
Freecom IQ ASIC-2 protocol
CONFIG_PARIDE_FRIQ
This option enables support for version 2 of the Freecom IQ parallel
port IDE adapter. This adapter is used by the Maxell Superdisk
drive. If you chose to build PARIDE support into your kernel, you
may answer Y here to build in the protocol driver, otherwise you
should answer M to build it as a loadable module. The module will be
called friq.o. You must also have a high-level driver for the type
of device that you want to support.
FreeCom power protocol
CONFIG_PARIDE_FRPW
This option enables support for the Freecom power parallel port IDE
protocol. If you chose to build PARIDE support into your kernel, you
may answer Y here to build in the protocol driver, otherwise you
should answer M to build it as a loadable module. The module will be
called frpw.o. You must also have a high-level driver for the type
of device that you want to support.
KingByte KBIC-951A/971A protocols
CONFIG_PARIDE_KBIC
This option enables support for the KBIC-951A and KBIC-971A parallel
port IDE protocols from KingByte Information Corp. KingByte's
adapters appear in many no-name portable disk and CD-ROM products,
especially in Europe. If you chose to build PARIDE support into your
kernel, you may answer Y here to build in the protocol driver,
otherwise you should answer M to build it as a loadable module. The
module will be called kbic.o. You must also have a high-level driver
for the type of device that you want to support.
KT PHd protocol
CONFIG_PARIDE_KTTI
This option enables support for the "PHd" parallel port IDE protocol
from KT Technology. This is a simple (low speed) adapter that is
used in some 2.5" portable hard drives. If you chose to build PARIDE
support into your kernel, you may answer Y here to build in the
protocol driver, otherwise you should answer M to build it as a
loadable module. The module will be called ktti.o. You must also
have a high-level driver for the type of device that you want to
support.
OnSpec 90c20 protocol
CONFIG_PARIDE_ON20
This option enables support for the (obsolete) 90c20 parallel port
IDE protocol from OnSpec (often marketed under the ValuStore brand
name). If you chose to build PARIDE support into your kernel, you
may answer Y here to build in the protocol driver, otherwise you
should answer M to build it as a loadable module. The module will
be called on20.o. You must also have a high-level driver for the
type of device that you want to support.
OnSpec 90c26 protocol
CONFIG_PARIDE_ON26
This option enables support for the 90c26 parallel port IDE protocol
from OnSpec Electronics (often marketed under the ValuStore brand
name). If you chose to build PARIDE support into your kernel, you
may answer Y here to build in the protocol driver, otherwise you
should answer M to build it as a loadable module. The module will be
called on26.o. You must also have a high-level driver for the type
of device that you want to support.
Logical Volume Manager (LVM) support
CONFIG_BLK_DEV_LVM
This driver lets you combine several hard disks, hard disk partitions,
multiple devices or even loop devices (for evaluation purposes) into
a volume group. Imagine a volume group as a kind of virtual disk.
Logical volumes, which can be thought of as virtual partitions,
can be created in the volume group. You can resize volume groups and
logical volumes after creation time, corresponding to new capacity needs.
Logical volumes are accessed as block devices named
/dev/VolumeGroupName/LogicalVolumeName.
For details see /usr/src/linux/Documentaion/LVM-HOWTO.
To get the newest software see <http://linux.msede.com/lvm>.
Logical Volume Manager proc filesystem information
CONFIG_LVM_PROC_FS
If you say Y here, you are able to access overall Logical Volume Manager,
Volume Group, Logical and Physical Volume information in /proc/lvm.
To use this option, you have to check, that the "proc filesystem support"
(CONFIG_PROC_FS) is enabled too.
Multiple devices driver support
CONFIG_BLK_DEV_MD
This driver lets you combine several hard disk partitions into one
logical block device. This can be used to simply append one
partition to another one or to combine several redundant
hard disks to a RAID1/4/5 device so as to provide protection against
hard disk failures. This is called "Software RAID" since the
combining of the partitions is done by the kernel. "Hardware RAID"
means that the combining is done by a dedicated controller; if you
have such a controller, you do not need to say Y here.
More information about Software RAID on Linux is contained in the
Software-RAID mini-HOWTO, available from
http://www.linuxdoc.org/docs.html#howto . There you will also
learn where to get the supporting user space utilities raidtools.
If unsure, say N.
Linear (append) mode
CONFIG_MD_LINEAR
If you say Y here, then your multiple devices driver will be able to
use the so-called linear mode, i.e. it will combine the hard disk
partitions by simply appending one to the other.
If you want to compile this as a module ( = code which can be
inserted in and removed from the running kernel whenever you want),
say M here and read Documentation/modules.txt. The module will be
called linear.o.
If unsure, say Y.
RAID-0 (striping) mode
CONFIG_MD_STRIPED
If you say Y here, then your multiple devices driver will be able to
use the so-called raid0 mode, i.e. it will combine the hard disk
partitions into one logical device in such a fashion as to fill them
up evenly, one chunk here and one chunk there. This will increase
the throughput rate if the partitions reside on distinct disks.
Information about Software RAID on Linux is contained in the
Software-RAID mini-HOWTO, available from
http://www.linuxdoc.org/docs.html#howto . There you will also
learn where to get the supporting user space utilities raidtools.
If you want to compile this as a module ( = code which can be
inserted in and removed from the running kernel whenever you want),
say M here and read Documentation/modules.txt. The module will be
called raid0.o.
If unsure, say Y.
RAID-1 (mirroring) mode
CONFIG_MD_MIRRORING
A RAID-1 set consists of several disk drives which are exact copies
of each other. In the event of a mirror failure, the RAID driver
will continue to use the operational mirrors in the set, providing
an error free MD (multiple device) to the higher levels of the
kernel. In a set with N drives, the available space is the capacity
of a single drive, and the set protects against a failure of (N - 1)
drives.
Information about Software RAID on Linux is contained in the
Software-RAID mini-HOWTO, available from
http://www.linuxdoc.org/docs.html#howto . There you will also
learn where to get the supporting user space utilities raidtools.
If you want to use such a RAID-1 set, say Y. This code is also
available as a module called raid1.o ( = code which can be inserted
in and removed from the running kernel whenever you want). If you
want to compile it as a module, say M here and read
Documentation/modules.txt.
If unsure, say Y.
RAID-4/RAID-5 mode
CONFIG_MD_RAID5
A RAID-5 set of N drives with a capacity of C MB per drive provides
the capacity of C * (N - 1) drives, and protects against a failure
of a single drive. For a given sector (row) number, (N - 1) drives
contain data sectors, and one drive contains the parity protection.
For a RAID-4 set, the parity blocks are present on a single drive,
while a RAID-5 set distributes the parity across the drives in one
of the available parity distribution methods.
Information about Software RAID on Linux is contained in the
Software-RAID mini-HOWTO, available from
http://www.linuxdoc.org/docs.html#howto . There you will also
learn where to get the supporting user space utilities raidtools.
If you want to use such a RAID-4/RAID-5 set, say Y. This code is
also available as a module called raid5.o ( = code which can be
inserted in and removed from the running kernel whenever you want).
If you want to compile it as a module, say M here and read
Documentation/modules.txt.
If unsure, say Y.
Boot support (linear, striped)
CONFIG_MD_BOOT
To boot with an initial linear or striped md device you have to
answer Y here. For lilo and loadlin options see the file
Documentation/md.txt.
Support for Deskstation RPC44
CONFIG_DESKSTATION_RPC44
This is a machine with a R4400 100 MHz CPU. To compile a Linux
kernel that runs on these, say Y here. For details about Linux
on the MIPS architecture, check out the Linux/MIPS FAQ on the WWW at
http://lena.fnet.fr/ .
Support for Acer PICA 1 chipset
CONFIG_ACER_PICA_61
This is a machine with a R4400 133/150 MHz CPU. To compile a Linux
kernel that runs on these, say Y here. For details about Linux on
the MIPS architecture, check out the Linux/MIPS FAQ on the WWW at
http://lena.fnet.fr/ .
Support for Algorithmics P4032 (EXPERIMENTAL)
CONFIG_ALGOR_P4032
This is an evaluation board of the British company Algorithmics. The
board uses the R4300 and a R5230 CPUs. For more information about
this board see http://www.algor.co.uk .
IDE card support
CONFIG_BLK_DEV_IDE_CARDS
On Acorn systems, say Y here if you wish to use an IDE interface
expansion card. If you do not or are unsure, say N to this.
ICS IDE interface
CONFIG_BLK_DEV_IDE_ICS
On Acorn systems, say Y here if you wish to use the ICS IDE
interface card. This is not required for ICS partition support.
If you are unsure, say N to this.
ADFS partition support
CONFIG_BLK_DEV_PART
This allows Linux on Acorn systems to determine its partitions in
the 'non-ADFS' partition area of the hard disk - usually located
after the ADFS partition. You are probably using this system, so
you should say Y here.
Support for Mips Magnum 4000
CONFIG_MIPS_MAGNUM_4000
This is a machine with a R4000 100 MHz CPU. To compile a Linux
kernel that runs on these, say Y here. For details about Linux on
the MIPS architecture, check out the Linux/MIPS FAQ on the WWW at
http://lena.fnet.fr/ .
Support for Olivetti M700
CONFIG_OLIVETTI_M700
This is a machine with a R4000 100 MHz CPU. To compile a Linux
kernel that runs on these, say Y here. For details about Linux on
the MIPS architecture, check out the Linux/MIPS FAQ on the WWW at
http://lena.fnet.fr/ .
CPU type
CONFIG_CPU_R3000
Give the type of your machine's MIPS CPU. For this question, it
suffices to give a unique prefix of the option you want to choose.
In case of doubt select the R3000 CPU. The kernel will then run on
other MIPS machines but with slightly reduced performance.
Compile the kernel into the ECOFF object format
CONFIG_ECOFF_KERNEL
Some machines require a kernel in the ECOFF format. You will have to
say Y here for example if you want to use a Mips Magnum 3000 or a
DECstation.
Generate little endian code
CONFIG_CPU_LITTLE_ENDIAN
Some MIPS machines can be configured for either little or big endian
byte order. These modes require different kernels. Say Y if your
machine is little endian, N if it's a big endian machine.
Kernel support for IRIX binaries
CONFIG_BINFMT_IRIX
If you say Y here, the kernel will support running of IRIX binaries.
You will need IRIX libraries for this to work.
Networking support
CONFIG_NET
Unless you really know what you are doing, you should say Y here.
The reason is that some programs need kernel networking support even
when running on a stand-alone machine that isn't connected to any
other computer. If you are upgrading from an older kernel, you
should consider updating your networking tools too because changes
in the kernel and the tools often go hand in hand. The tools are
contained in the package net-tools, the location and version number
of which are given in Documentation/Changes.
For a general introduction to Linux networking, it is highly
recommended to read the NET-3-HOWTO, available from
http://www.linuxdoc.org/docs.html#howto .
Socket filtering
CONFIG_FILTER
The Linux Socket Filter is derived from the Berkeley Packet Filter.
If you say Y here, user-space programs can attach a filter to any
socket and thereby tell the kernel that it should allow or disallow
certain types of data to get through the socket. Linux Socket
Filtering works on all socket types except TCP for now. See the text
file linux/Documentation/networking/filter.txt for more information.
If unsure, say N.
Network packet filtering
CONFIG_NETFILTER
Netfilter is a framework for filtering and mangling network packets
that pass through your Linux box.
The most common use of packet filtering is to run your Linux box as
a firewall protecting a local network from the Internet. The type of
firewall provided by this kernel support is called a "packet
filter", which means that it can reject individual network packets
based on type, source, destination etc. The other kind of firewall,
a "proxy-based" one, is more secure but more intrusive and more
bothersome to set up; it inspects the network traffic much more
closely, modifies it and has knowledge about the higher level
protocols, which a packet filter lacks. Moreover, proxy-based
firewalls often require changes to the programs running on the local
clients. Proxy-based firewalls don't need support by the kernel, but
they are often combined with a packet filter, which only works if
you say Y here.
You should also say Y here if you intend to use your Linux box as
the gateway to the Internet for a local network of machines without
globally valid IP addresses. This is called "masquerading": if one
of the computers on your local network wants to send something to
the outside, your box can "masquerade" as that computer, i.e. it
forwards the traffic to the intended outside destination, but
modifies the packets to make it look like they came from the
firewall box itself. It works both ways: if the outside host
replies, the Linux box will silently forward the traffic to the
correct local computer. This way, the computers on your local net
are completely invisible to the outside world, even though they can
reach the outside and can receive replies. It is even possible to
run globally visible servers from within a masqueraded local network
using a mechanism called port-forwarding. Masquerading is also often
called NAT (Network Address Translation).
Another use of Netfilter is in transparent proxying: if a machine on
the local network tries to connect to an outside host, your Linux
box can transparently forward the traffic to a local server,
typically a caching proxy server.
Various modules exist for netfilter which replace the previous
masquerading (ipmasqadm), packet filtering (ipchains), transparent
proxying, and port-forwarding mechanisms. More information is
available from http://netfilter.kernelnotes.org .
Make sure to say N to "Fast switching" below if you intend to say Y
here, as Fast switching currently bypasses netfilter.
Chances are that you should say Y here if you compile a kernel which
will run as a router and N for regular hosts. If unsure, say N.
SIN flood protection
CONFIG_SYN_COOKIES
Normal TCP/IP networking is open to an attack known as "SYN
flooding". This denial-of-service attack prevents legitimate remote
users from being able to connect to your computer during an ongoing
attack and requires very little work from the attacker, who can
operate from anywhere on the Internet.
SYN cookies provide protection against this type of attack. If you
say Y here, the TCP/IP stack will use a cryptographic challenge
protocol known as "SYN cookies" to enable legitimate users to
continue to connect, even when your machine is under attack. There
is no need for the legitimate users to change their TCP/IP software;
SYN cookies work transparently to them. For technical information
about SYN cookies, check out
ftp://koobera.math.uic.edu/syncookies.html .
If you are SYN flooded, the source address reported by the kernel is
likely to have been forged by the attacker; it is only reported as
an aid in tracing the packets to their actual source and should not
be taken as absolute truth.
SYN cookies may prevent correct error reporting on clients when the
server is really overloaded. If this happens frequently better turn
them off.
If you say Y here, note that SYN cookies aren't enabled by default;
you can enable them by saying Y to "/proc file-system support" and
"Sysctl support" below and executing the command
echo 1 >/proc/sys/net/ipv4/tcp_syncookies
at boot time after the proc file-system has been mounted.
If unsure, say Y.
Sun floppy controller support
CONFIG_BLK_DEV_SUNFD
This is support for floppy drives on Sun SPARC workstations. Say Y
if you have a floppy drive, otherwise N. Easy.
Alpha system type
CONFIG_ALPHA_GENERIC
This is the system type of your hardware. A "generic" kernel will
run on any supported Alpha system. However, if you configure a
kernel for your specific system, it will be faster and smaller.
To find out what type of Alpha system you have, you may want to
check out the Linux/Alpha FAQ, accessible on the WWW from
http://www.alphalinux.org . In summary:
Alcor/Alpha-XLT AS 600
Alpha-XL XL-233, XL-266
AlphaBook1 Alpha laptop
Avanti AS 200, AS 205, AS 250, AS 255, AS 300, AS 400
Cabriolet AlphaPC64, AlphaPCI64
DP264 DP264
EB164 EB164 21164 evaluation board
EB64+ EB64+ 21064 evaluation board
EB66 EB66 21066 evaluation board
EB66+ EB66+ 21066 evaluation board
Jensen DECpc 150, DEC 2000 model 300,
DEC 2000 model 500
LX164 AlphaPC164-LX
Miata Personal Workstation 433a, 433au, 500a,
500au, 600a, or 600au
Mikasa AS 1000
Noname AXPpci33, UDB (Multia)
Noritake AS 1000A, AS 600A, AS 800
PC164 AlphaPC164
Rawhide AS 1200, AS 4000, AS 4100
Ruffian RPX164-2, AlphaPC164-UX, AlphaPC164-BX
SX164 AlphaPC164-SX
Sable AS 2000, AS 2100
Takara Takara
If you don't know what to do, choose "generic".
EV5 CPU daughtercard
CONFIG_ALPHA_PRIMO
Say Y if you have an AS 1000 5/xxx or an AS 1000A 5/xxx.
EV5 CPU(s)
CONFIG_ALPHA_GAMMA
Say Y if you have an AS 2000 5/xxx or an AS 2100 5/xxx.
Using SRM as bootloader
CONFIG_ALPHA_SRM
There are two different types of booting firmware on Alphas: SRM,
which is command line driven, and ARC, which uses menus and arrow
keys. Details about the Linux/Alpha booting process are contained in
the Linux/Alpha FAQ, accessible on the WWW from
http://www.alphalinux.org .
The usual way to load Linux on an Alpha machine is to use MILO
(a bootloader that lets you pass command line parameters to the
kernel just like lilo does for the x86 architecture) which can be
loaded either from ARC or can be installed directly as a permanent
firmware replacement from floppy (which requires changing a certain
jumper on the motherboard). If you want to do either of these, say N
here. If MILO doesn't work on your system (true for Jensen
motherboards), you can bypass it altogether and boot Linux directly
from an SRM console; say Y here in order to do that. Note that you
won't be able to boot from an IDE disk using SRM.
If unsure, say N.
Use SRM PCI setup
CONFIG_ALPHA_SRM_SETUP
This option controls whether or not the PCI configuration set up by
SRM is modified. If you say Y, the existing PCI configuration will
be left intact.
Non-standard serial port support
CONFIG_SERIAL_NONSTANDARD
Say Y here if you have any non-standard serial boards -- boards
which aren't supported using the standard "dumb" serial driver.
This includes intelligent serial boards such as Cyclades,
Digiboards, etc. These are usually used for systems that need many
serial ports because they serve many terminals or dial-in
connections.
Note that the answer to this question won't directly affect the
kernel: saying N will just cause this configure script to skip all
the questions about non-standard serial boards.
Most people can say N here.
Extended dumb serial driver options
CONFIG_SERIAL_EXTENDED
If you wish to use any non-standard features of the standard "dumb"
driver, say Y here. This includes HUB6 support, shared serial
interrupts, special multiport support, support for more than the
four COM 1/2/3/4 boards, etc.
Note that the answer to this question won't directly affect the
kernel: saying N will just cause this configure script to skip all
the questions about serial driver options. If unsure, say N.
Support more than 4 serial ports
CONFIG_SERIAL_MANY_PORTS
Say Y here if you have dumb serial boards other than the four
standard COM 1/2/3/4 ports. This may happen if you have an AST
FourPort, Accent Async, Boca (read the Boca mini-HOWTO, available
from http://www.linuxdoc.org/docs.html#howto ), or other custom
serial port hardware which acts similar to standard serial port
hardware. If you only use the standard COM 1/2/3/4 ports, you can
say N here to save some memory. You can also say Y if you have an
"intelligent" multiport card such as Cyclades, Digiboards, etc.
Support for sharing serial interrupts
CONFIG_SERIAL_SHARE_IRQ
Some serial boards have hardware support which allows multiple dumb
serial ports on the same board to share a single IRQ. To enable
support for this in the serial driver, say Y here.
Auto detect IRQ on standard ports (unsafe)
CONFIG_SERIAL_DETECT_IRQ
Say Y here if you want the kernel to try to guess which IRQ
to use for your serial port.
This is considered unsafe; it is far better to configure the IRQ in
a boot script using the setserial command.
If unsure, say N.
Support special multiport boards
CONFIG_SERIAL_MULTIPORT
Some multiport serial ports have special ports which are used to
signal when there are any serial ports on the board which need
servicing. Say Y here to enable the serial driver to take advantage
of those special I/O ports.
SGI Zilog85C30 serial support
CONFIG_SGI_SERIAL
If you want to use your SGI's built-in serial ports under Linux,
answer Y.
SGI Newport Graphics support (EXPERIMENTAL)
CONFIG_SGI_NEWPORT_GFX
If you have an SGI machine and you want to compile the graphics
drivers, say Y here. This will include the code for the
/dev/graphics and /dev/gfx drivers into the kernel for supporting
virtualized access to your graphics hardware.
Support the Bell Technologies HUB6 card
CONFIG_HUB6
Say Y here to enable support in the dumb serial driver to support
the HUB6 card.
PCMCIA serial device support
CONFIG_PCMCIA_SERIAL_CS
Say Y here to enable support for 16-bit PCMCIA serial devices,
including serial port cards, modems, and the modem functions of
multifunction ethernet/modem cards.
This driver is also available as a module ( = code which can be
inserted in and removed from the running kernel whenever you want).
The module will be called serial_cs.o. If you want to compile it as a
module, say M here and read Documentation/modules.txt. If unsure,
say N.
CardBus serial device support
CONFIG_PCMCIA_SERIAL_CB
Say Y here to enable support for CardBus serial devices, including
the modem functions of multifunction ethernet/modem devices.
This driver is also available as a module ( = code which can be
inserted in and removed from the running kernel whenever you want).
The module will be called serial_cb.o. If you want to compile it as a
module, say M here and read Documentation/modules.txt. If unsure,
say N.
PCI support
CONFIG_PCI
Find out whether you have a PCI motherboard. PCI is the name of a
bus system, i.e. the way the CPU talks to the other stuff inside
your box. Other bus systems are ISA, EISA, Microchannel (MCA) or
VESA. If you have PCI, say Y, otherwise N.
The PCI-HOWTO, available from
http://www.linuxdoc.org/docs.html#howto , contains valuable
information about which PCI hardware does work under Linux and which
doesn't.
PCI access mode
CONFIG_PCI_GOBIOS
On PCI systems, the BIOS can be used to detect the PCI devices and
determine their configuration. However, some old PCI motherboards
have BIOS bugs and may crash if this is done. Also, some embedded
PCI-based systems don't have any BIOS at all. Linux can also try to
detect the PCI hardware directly without using the BIOS.
With this option, you can specify how Linux should detect the PCI
devices. If you choose "BIOS", the BIOS will be used, if you choose
"Direct", the BIOS won't be used, and if you choose "Any", the
kernel will try the direct access method and falls back to the BIOS
if that doesn't work. If unsure, go with the default.
PCI device name database
CONFIG_PCI_NAMES
By default, the kernel contains a database of all known PCI device
names to make the information in /proc/pci, /proc/ioports and similar
files comprehensible to the user. This database increases size of
the kernel image by about 80KB, but it gets freed after the system
boots up, so it doesn't take up kernel memory. Anyway, if you are
building an installation floppy or kernel for an embedded system
where kernel image size really matters, you can disable this feature
and you'll get device ID numbers instead of names.
When in doubt, say Y.
MCA support
CONFIG_MCA
MicroChannel Architecture is found in some IBM PS/2 machines and
laptops. It is a bus system similar to PCI or ISA. See
Documentation/mca.txt (and especially the web page given there)
before attempting to build an MCA bus kernel.
SGI Visual Workstation support
CONFIG_VISWS
The SGI Visual Workstation series is an IA32-based workstation
based on SGI systems chips with some legacy PC hardware attached.
Say Y here to create a kernel to run on the SGI 320 or 540.
A kernel compiled for the Visual Workstation will not run on other
PC boards and vice versa.
See Documentation/sgi-visws.txt for more.
SGI Visual Workstation framebuffer support
CONFIG_FB_SGIVW
SGI Visual Workstation support for framebuffer graphics.
I2O support
CONFIG_I2O
The Intelligent Input/Output (I2O) architecture allows hardware
drivers to be split into two parts: an operating system specific
module called the OSM and an hardware specific module called the
HDM. The OSM can talk to a whole range of HDM's, and ideally the
HDM's are not OS dependent. This allows for the same HDM driver to
be used under different operating systems if the relevant OSM is in
place. In order for this to work, you need to have an I2O interface
adapter card in your computer. This card contains a special I/O
processor (IOP), thus allowing high speeds since the CPU does not
have to deal with I/O.
If you say Y here, you will get a choice of interface adapter
drivers and OSM's with the following questions.
This support is also available as a module ( = code which can be
inserted in and removed from the running kernel whenever you want).
If you want to compile it as a module, say M here and read
Documentation/modules.txt. You will get modules called i2o_core.o
and i20_config.o.
If unsure, say N.
I2O PCI support
CONFIG_I2O_PCI
Say Y for support of PCI bus I2O interface adapters. Currently this
is the only variety supported, so you should say Y.
This support is also available as a module called i2o_pci.o ( = code
which can be inserted in and removed from the running kernel
whenever you want). If you want to compile it as a module, say M
here and read Documentation/modules.txt.
I2O Block OSM
CONFIG_I2O_BLOCK
Include support for the I2O Block OSM. The Block OSM presents disk
and other structured block devices to the operating system.
This support is also available as a module called i2o_block.o ( =
code which can be inserted in and removed from the running kernel
whenever you want). If you want to compile it as a module, say M
here and read Documentation/modules.txt.
I2O LAN OSM
CONFIG_I2O_LAN
Include support for the LAN OSM. You will also need to include
support for token ring or FDDI if you wish to use token ring or FDDI
I2O cards with this driver.
This support is also available as a module called i2o_lan.o ( = code
which can be inserted in and removed from the running kernel
whenever you want). If you want to compile it as a module, say M
here and read Documentation/modules.txt.
I2O SCSI OSM
CONFIG_I2O_SCSI
Allows direct SCSI access to SCSI devices on a SCSI or FibreChannel
I2O controller. You can use both the SCSI and Block OSM together if
you wish.
This support is also available as a module called i2o_scsi.o ( =
code which can be inserted in and removed from the running kernel
whenever you want). If you want to compile it as a module, say M
here and read Documentation/modules.txt.
I2O /proc support
CONFIG_I2O_PROC
If you say Y here and to "/proc file system support", you will be
able to read I2O related information from the virtual directory
/proc/i2o.
This support is also available as a module called i2o_proc.o ( =
code which can be inserted in and removed from the running kernel
whenever you want). If you want to compile it as a module, say M
here and read Documentation/modules.txt.
Plug and Play support
CONFIG_PNP
Plug and Play (PnP) is a standard for peripherals which allows those
peripherals to be configured by software, e.g. assign IRQ's or other
parameters. No jumpers on the cards are needed, instead the values
are provided to the cards from the BIOS, from the operating system,
or using a user-space utility.
Say Y here if you would like Linux to configure your Plug and Play
devices. You should then also say Y to "ISA Plug and Play support",
below. Alternatively, you can configure your PnP devices using the
user space utilities contained in the ISAPNP tools package.
This support is also available as a module ( = code which can be
inserted in and removed from the running kernel whenever you want).
If you want to compile it as a module, say M here and read
Documentation/modules.txt.
ISA Plug and Play support
CONFIG_ISAPNP
Say Y here if you would like support for ISA Plug and Play devices.
This support is also available as a module called isapnp.o ( =
code which can be inserted in and removed from the running kernel
whenever you want). If you want to compile it as a module, say M
here and read Documentation/modules.txt.
If unsure, say Y.
PCMCIA/CardBus support
CONFIG_PCMCIA
Include kernel support for PCMCIA and CardBus devices. Because
PCMCIA support requires additional components that are not part of
the kernel (i.e., the pcmcia-cs package), building PCMCIA into the
kernel is generally not recommended unless you have a specific
need. If unsure, say N.
This driver is also available as a module ( = code which can be
inserted in and removed from the running kernel whenever you want).
When compiled this way, there will be modules called pcmcia_core.o
and ds.o. If you want to compile it as a module, say M here and
read Documentation/modules.txt.
You will also need David Hinds' pcmcia-cs package (see the file
Documentation/Changes for location). For more information, see the
PCMCIA-HOWTO.
CardBus support
CONFIG_CARDBUS
There are two types of PCMCIA devices: 16-bit PC Cards, and higher
performance 32-bit CardBus devices. Use this option to include
support for CardBus devices. If unsure, say Y.
i82365/Yenta compatible bridge support
CONFIG_I82365
Include support for PCMCIA and CardBus host bridges that are
register compatible with the Intel i82365 and/or the Yenta
specification: this includes virtually all modern PCMCIA bridges.
If unsure, say Y.
Databook TCIC host bridge support
CONFIG_TCIC
Include support for the Databook TCIC family of PCMCIA host bridges.
These are only found on a handful of old systems. If unsure, say N.
System V IPC
CONFIG_SYSVIPC
Inter Process Communication is a suite of library functions and
system calls which let processes (running programs) synchronize and
exchange information. It is generally considered to be a good thing,
and some programs won't run unless you say Y here. In particular, if
you want to run the DOS emulator dosemu under Linux (read the
DOSEMU-HOWTO, available from
http://www.linuxdoc.org/docs.html#howto ), you'll need to say Y
here.
You can find documentation about IPC with "info ipc" and also in
section 6.4 of the Linux Programmer's Guide, available from
http://www.linuxdoc.org/docs.html#guide .
Saying Y here enlarges your kernel by about 18 KB. Just say Y.
BSD Process Accounting
CONFIG_BSD_PROCESS_ACCT
If you say Y here, a user level program will be able to instruct the
kernel (via a special system call) to write process accounting
information to a file: whenever a process exits, information about
that process will be appended to the file by the kernel. The
information includes things such as creation time, owning user,
command name, memory usage, controlling terminal etc. (the complete
list is in the struct acct in include/linux/acct.h). It is up to the
user level program to do useful things with this information. This
is generally a good idea, so say Y.
Sysctl support
CONFIG_SYSCTL
The sysctl interface provides a means of dynamically changing
certain kernel parameters and variables on the fly without requiring
a recompile of the kernel or reboot of the system. The primary
interface consists of a system call, but if you say Y to "/proc
file system support", a tree of modifiable sysctl entries will be
generated beneath the /proc/sys directory. They are explained in the
files in Documentation/sysctl/. Note that enabling this option will
enlarge the kernel by at least 8 KB.
As it is generally a good thing, you should say Y here unless
building a kernel for install/rescue disks or your system is very
limited in memory.
Kernel core (/proc/kcore) format
CONFIG_KCORE_ELF
If you enabled support for /proc file system then the file /proc/kcore
will contain the kernel core image. This can be used in gdb:
$ cd /usr/src/linux ; gdb vmlinux /proc/kcore
Selecting ELF will make /proc/kcore appear in ELF core format as defined
by the Executable and Linking Format specification. Selecting A.OUT will
choose the old "a.out" format which may be necessary for some old versions
of binutils or on some architectures.
This is especially useful if you have compiled the kernel with "-g" option
to preserve debugging information. It is mainly used for examining kernel
data structures on the live kernel so if you don't understand what this
means or are not a kernel hacker, just leave it at its default value ELF.
Kernel support for ELF binaries
CONFIG_BINFMT_ELF
ELF (Executable and Linkable Format) is a format for libraries and
executables used across different architectures and operating
systems. Saying Y here will enable your kernel to run ELF binaries
and enlarge it by about 13 KB. ELF support under Linux has now all
but replaced the traditional Linux a.out formats (QMAGIC and ZMAGIC)
because it is portable (this does *not* mean that you will be able
to run executables from different architectures or operating systems
however) and makes building run-time libraries very easy. Many new
executables are distributed solely in ELF format. You definitely
want to say Y here.
Information about ELF is contained in the ELF HOWTO available from
http://www.linuxdoc.org/docs.html#howto .
If you find that after upgrading from Linux kernel 1.2 and saying Y
here, you still can't run any ELF binaries (they just crash), then
you'll have to install the newest ELF runtime libraries, including
ld.so (check the file Documentation/Changes for location and latest
version).
If you want to compile this as a module ( = code which can be
inserted in and removed from the running kernel whenever you want),
say M here and read Documentation/modules.txt. The module will be
called binfmt_elf.o. Saying M or N here is dangerous because some
crucial programs on your system might be in ELF format.
Kernel support for A.OUT binaries
CONFIG_BINFMT_AOUT
A.out (Assembler.OUTput) is a set of formats for libraries and
executables used in the earliest versions of UNIX. Linux used the
a.out formats QMAGIC and ZMAGIC until they were replaced with the
ELF format.
As more and more programs are converted to ELF, the use for a.out
will gradually diminish. If you disable this option it will reduce
your kernel by one page. This is not much and by itself does not
warrant removing support. However its removal is a good idea if you
wish to ensure that absolutely none of your programs will use this
older executable format. If you don't know what to answer at this
point then answer Y. If someone told you "You need a kernel with
QMAGIC support" then you'll have to say Y here. You may answer M to
compile a.out support as a module and later load the module when you
want to use a program or library in a.out format. The module will be
called binfmt_aout.o. Saying M or N here is dangerous though,
because some crucial programs on your system might still be in A.OUT
format.
Kernel support for Linux/Intel ELF binaries
CONFIG_BINFMT_EM86
Say Y here if you want to be able to execute Linux/Intel ELF
binaries just like native Alpha binaries on your Alpha machine. For
this to work, you need to have the emulator /usr/bin/em86 in place.
You can get the same functionality by saying N here and saying Y to
"Kernel support for MISC binaries".
You may answer M to compile the emulation support as a module and
later load the module when you want to use a Linux/Intel binary. The
module will be called binfmt_em86.o. If unsure, say Y.
Kernel support for MISC binaries
CONFIG_BINFMT_MISC
If you say Y here, it will be possible to plug wrapper-driven binary
formats into the kernel. You will like this especially when you use
programs that need an interpreter to run like Java, Python or
Emacs-Lisp. It's also useful if you often run DOS executables under
the Linux DOS emulator DOSEMU (read the DOSEMU-HOWTO, available from
http://www.linuxdoc.org/docs.html#howto ). Once you have
registered such a binary class with the kernel, you can start one of
those programs simply by typing in its name at a shell prompt; Linux
will automatically feed it to the correct interpreter.
You can do other nice things, too. Read the file
Documentation/binfmt_misc.txt to learn how to use this feature, and
Documentation/java.txt for information about how to include Java
support.
You must say Y to "proc file system support" (CONFIG_PROC_FS) to
use this part of the kernel.
You may say M here for module support and later load the module when
you have use for it; the module is called binfmt_misc.o. If you
don't know what to answer at this point, say Y.
Solaris binary emulation (EXPERIMENTAL)
CONFIG_SOLARIS_EMUL
This is experimental code which will enable you to run (many)
Solaris binaries on your SPARC Linux machine.
This code is also available as a module ( = code which can be
inserted in and removed from the running kernel whenever you want).
The module will be called solaris.o. If you want to compile it as a
module, say M here and read Documentation/modules.txt.
Processor family
CONFIG_M386
This is the processor type of your CPU. This information is used for
optimizing purposes. In order to compile a kernel that can run on
all x86 CPU types (albeit not optimally fast), you can specify
"386" here.
If you specify one of "486" or "586" or "Pentium" or "PPro", then
the kernel will not necessarily run on earlier architectures (e.g. a
Pentium optimized kernel will run on a PPro, but not necessarily on
a i486).
Here are the settings recommended for greatest speed:
- "386" for the AMD/Cyrix/Intel 386DX/DXL/SL/SLC/SX, Cyrix/TI
486DLC/DLC2 and UMC 486SX-S. Only "386" kernels will run on a 386
class machine.
- "486" for the AMD/Cyrix/IBM/Intel 486DX/DX2/DX4 or
SL/SLC/SLC2/SLC3/SX/SX2, AMD/Cyrix 5x86, NexGen Nx586 and
UMC U5D or U5S.
- "586" for generic Pentium CPUs, possibly lacking the TSC
(time stamp counter) register.
- "Pentium" for the Intel Pentium/Pentium MMX, AMD K5, K6 and
K6-3D.
- "PPro" for the Cyrix/IBM/National Semiconductor 6x86MX, MII and
Intel Pentium II/Pentium Pro.
If you don't know what to do, choose "386".
VGA text console
CONFIG_VGA_CONSOLE
Saying Y here will allow you to use Linux in text mode through a
display that complies with the generic VGA standard. Virtually
everyone wants that.
The program SVGATextMode can be used to utilize SVGA video cards to
their full potential in text mode. Download it from
ftp://metalab.unc.edu/pub/Linux/utils/console .
Say Y.
Video mode selection support
CONFIG_VIDEO_SELECT
This enables support for text mode selection on kernel startup. If
you want to take advantage of some high-resolution text mode your
card's BIOS offers, but the traditional Linux utilities like
SVGATextMode don't, you can say Y here and set the mode using the
"vga=" option from your boot loader (lilo or loadlin) or set
"vga=ask" which brings up a video mode menu on kernel startup. (Try
"man bootparam" or see the documentation of your boot loader about
how to pass options to the kernel. The lilo procedure is also
explained in the SCSI-HOWTO, available from
http://www.linuxdoc.org/docs.html#howto .)
Read the file Documentation/svga.txt for more information about the
Video mode selection support. If unsure, say N.
Support for frame buffer devices (EXPERIMENTAL)
CONFIG_FB
The frame buffer device provides an abstraction for the graphics
hardware. It represents the frame buffer of some video hardware and
allows application software to access the graphics hardware through
a well-defined interface, so the software doesn't need to know
anything about the low-level (hardware register) stuff.
Frame buffer devices work identically across the different
architectures supported by Linux and make the implementation of
application programs easier and more portable; at this point, an X
server exists which uses the frame buffer device exclusively.
On several non-X86 architectures, the frame buffer device is the
only way to use the graphics hardware.
The device is accessed through special device nodes, usually located
in the /dev directory, i.e. /dev/fb*.
You need an utility program called fbset to make full use of frame
buffer devices. Please read Documentation/fb/framebuffer.txt and the
Framebuffer-HOWTO at
http://www.tahallah.demon.co.uk/programming/prog.html for more
information.
Say Y here and to the driver for your graphics board below if you
are compiling a kernel for a non-x86 architecture.
If you are compiling for the x86 architecture, you can say Y if you
want to play with it, but it is not essential. Please note that
running graphical applications that directly touch the hardware
(e.g. an accelerated X server) and that are not frame buffer
device-aware may cause unexpected results. If unsure, say N.
Acorn VIDC support
CONFIG_FB_ACORN
This is the frame buffer device driver for the Acorn VIDC graphics
hardware found in Acorn RISC PCs and other ARM-based machines. If
unsure, say N.
Apollo frame buffer device
CONFIG_FB_APOLLO
This is the frame buffer device driver for the monochrome graphics
hardware found in some Apollo workstations.
Amiga native chipset support
CONFIG_FB_AMIGA
This is the frame buffer device driver for the builtin graphics
chipset found in Amigas.
Amiga OCS chipset support
CONFIG_FB_AMIGA_OCS
This enables support for the original Agnus and Denise video chips,
found in the Amiga 1000 and most A500's and A2000's. If you intend
to run Linux on any of these systems, say Y; otherwise say N.
Amiga ECS chipset support
CONFIG_FB_AMIGA_ECS
This enables support for the Enhanced Chip Set, found in later
A500's, later A2000's, the A600, the A3000, the A3000T and CDTV. If
you intend to run Linux on any of these systems, say Y; otherwise
say N.
Amiga AGA chipset support
CONFIG_FB_AMIGA_AGA
This enables support for the Advanced Graphics Architecture (also
known as the AGA or AA) Chip Set, found in the A1200, A4000, A4000T
and CD32. If you intend to run Linux on any of these systems, say Y;
otherwise say N.
Amiga CyberVision support
CONFIG_FB_CYBER
This enables support for the Cybervision 64 graphics card from
Phase5. Please note that its use is not all that intuitive (i.e. if
you have any questions, be sure to ask!). Say N unless you have a
Cybervision 64 or plan to get one before you next recompile the
kernel. Please note that this driver DOES NOT support the
Cybervision 64 3D card, as they use incompatible video chips.
CyberPro 20x0 support
CONFIG_FB_CYBER2000
This enables support for the Integraphics CyberPro 20x0 and 5000
VGA chips used in the Rebel.com Netwinder and other machines.
Say Y if you have a NetWinder or a graphics card containing this
device, otherwise say N.
Amiga CyberVision3D support (EXPERIMENTAL)
CONFIG_FB_VIRGE
This enables support for the Cybervision 64/3D graphics card from
Phase5. Please note that its use is not all that intuitive (i.e. if
you have any questions, be sure to ask!). Say N unless you have a
Cybervision 64/3D or plan to get one before you next recompile the
kernel. Please note that this driver DOES NOT support the older
Cybervision 64 card, as they use incompatible video chips.
Amiga RetinaZ3 support (EXPERIMENTAL)
CONFIG_FB_RETINAZ3
This enables support for the Retina Z3 graphics card. Say N unless
you have a Retina Z3 or plan to get one before you next recompile
the kernel.
Cirrus Logic generic driver (EXPERIMENTAL)
CONFIG_FB_CLGEN
This enables support for Cirrus Logic GD542x/543x based boards on
Amiga: SD64, Piccolo, Picasso II/II+, Picasso IV, or EGS Spectrum.
If you have a PCI-based system, this enables support for these
chips: GD-543x, GD-544x, GD-5480.
Please read the file Documentation/fb/clgenfb.txt.
Say N unless you have such a graphics board or plan to get one
before you next recompile the kernel.
Permedia2 support (EXPERIMENTAL)
CONFIG_FB_PM2
Say Y here if this is your graphics board.
Apollo support
CONFIG_APOLLO
Say Y here if you want to run Linux on an MC680x0-based Apollo
Domain workstation such as the DN3500.
Apollo 3c505 support
CONFIG_APOLLO_ELPLUS
Say Y or M here if your Apollo has a 3Com 3c505 ISA Ethernet card.
If you don't have one made for Apollos, you can use one from a PC,
except that your Apollo won't be able to boot from it (because the
code in the ROM will be for a PC).
Atari native chipset support
CONFIG_FB_ATARI
This is the frame buffer device driver for the builtin graphics
chipset found in Ataris.
Open Firmware frame buffer device support
CONFIG_FB_OF
Say Y if you want support with Open Firmware for your graphics
board.
S3 Trio frame buffer device support
CONFIG_FB_S3TRIO
If you have a S3 Trio say Y. Say N for S3 Virge.
ATI Mach64 display support (EXPERIMENTAL)
CONFIG_FB_ATY
This driver supports graphics boards with the ATI Mach64 chips.
Say Y if you have such a graphics board.
The driver is also available as a module ( = code which can be
inserted and removed from the running kernel whenever you want). The
module will be called atyfb.o. If you want to compile it as a
module, say M here and read Documentation/modules.txt.
ATI Rage128 display support (EXPERIMENTAL)
CONFIG_FB_ATY128
This driver supports graphics boards with the ATI Rage128 chips.
Say Y if you have such a graphics board.
The driver is also available as a module ( = code which can be
inserted and removed from the running kernel whenever you want). The
module will be called aty128fb.o. If you want to compile it as a
module, say M here and read Documentation/modules.txt.
PowerMac "control" frame buffer device support
CONFIG_FB_CONTROL
This driver supports a frame buffer for the graphics adapter in the
Power Macintosh 7300 and others.
PowerMac "platinum" frame buffer device support
CONFIG_FB_PLATINUM
This driver supports a frame buffer for the "platinum" graphics
adapter in some Power Macintoshes.
PowerMac "valkyrie" frame buffer device support
CONFIG_FB_VALKYRIE
This driver supports a frame buffer for the "valkyrie" graphics
adapter in some Power Macintoshes.
Chips 65550 display support
CONFIG_FB_CT65550
This is the frame buffer device driver for the Chips & Technologies
65550 graphics chip in PowerBooks.
Mac frame buffer device
CONFIG_FB_MAC
This is the frame buffer device driver for the graphics hardware in
m68k Macintoshes.
HP300 frame buffer device
CONFIG_FB_HP300
This is the frame buffer device driver for the Topcat graphics
hardware found in HP300 workstations.
TGA frame buffer support
CONFIG_FB_TGA
This is the frame buffer device driver for generic TGA graphic
cards. Say Y if you have one of those.
VESA VGA graphics console
CONFIG_FB_VESA
This is the frame buffer device driver for generic VESA 2.0
compliant graphic cards. The older VESA 1.2 cards are not supported.
You will get a boot time penguin logo at no additional cost. Please
read Documentation/fb/vesafb.txt. If unsure, say Y.
VGA 16-color planar support
CONFIG_FBCON_VGA_PLANES
This low level frame buffer console driver enable the kernel to use
the 16-color planar modes of the old VGA cards where the bits of each
pixel are separated into 4 plans.
Only answer Y here if you have an (very old) VGA card that isn't
VESA 2 compatible.
VGA 16-color graphics console
CONFIG_FB_VGA16
This is the frame buffer device driver for VGA 16 color graphic
cards. Say Y if you have such a card.
This code is also available as a module. If you want to compile it
as a module ( = code which can be inserted in and removed from the
running kernel whenever you want), say M here and read
Documentation/modules.txt. The module will be called vga16fb.o.
VGA 8x16 font
CONFIG_FONT_8x16
This is the "high resolution" font for the VGA frame buffer (the one
provided by the text console 80x25 mode.
Support only 8 pixels wide fonts
CONFIG_FBCON_FONTWIDTH8_ONLY
Answer Y here will make the kernel provide only the 8x8 fonts (these
are the less readable).
VGA 8x8 font
CONFIG_FONT_8x8
This is the "high resolution" font for the VGA frame buffer (the one
provided by the text console 80x50 (and higher) modes.
Note this is a poor quality font. The VGA 8x16 font is quite a lot
more readable.
Given the resolution provided by the frame buffer device, answer N
here is safe.
Backward compatibility mode for Xpmac
CONFIG_FB_COMPAT_XPMAC
If you use the Xpmac X server (common with mklinux), you'll need to
say Y here to use X. You should consider changing to XFree86 which
includes a server that supports the frame buffer device directly
(XF68_FBDev).
Matrox unified accelerated driver (EXPERIMENTAL)
CONFIG_FB_MATROX
Say Y here if you have Matrox Millennium, Matrox Millennium II,
Matrox Mystique, Matrox Mystique 220, Matrox Productiva G100, Matrox
Mystique G200, Matrox Millennium G200 or Matrox Marvel G200 video
card in your box. At this time, support for the G100, Mystique G200
and Marvel G200 is untested.
This driver is also available as a module ( = code which can be
inserted and removed from the running kernel whenever you want).
The module will be called matroxfb.o. If you want to compile it as
a module, say M here and read Documentation/modules.txt.
You can pass several parameters to the driver at boot time or at
module load time. The parameters look like "video=matrox:XXX", where
the meaning of XXX can be found at the end of the main source file
(drivers/video/matroxfb.c). Please see the file
Documentation/fb/matroxfb.txt.
Matrox Millennium support
CONFIG_FB_MATROX_MILLENIUM
Say Y here if you have a Matrox Millennium or Matrox Millennium II
video card. If you select "Advanced lowlevel driver options" below,
you should check 4 bpp packed pixel, 8 bpp packed pixel, 16 bpp
packed pixel, 24 bpp packed pixel and 32 bpp packed pixel. You can
also use font widths different from 8.
Matrox Mystique support
CONFIG_FB_MATROX_MYSTIQUE
Say Y here if you have a Matrox Mystique or Matrox Mystique 220
video card. If you select "Advanced lowlevel driver options" below,
you should check 8 bpp packed pixel, 16 bpp packed pixel, 24 bpp
packed pixel and 32 bpp packed pixel. You can also use font widths
different from 8.
Matrox G100/G200/G400 support
CONFIG_FB_MATROX_G100
Say Y here if you have a Matrox Productiva G100, Matrox Mystique
G200, Matrox Marvel G200 or Matrox Millennium G200 video card. If
you select "Advanced lowlevel driver options", you should check 8
bpp packed pixel, 16 bpp packed pixel, 24 bpp packed pixel and 32
bpp packed pixel. You can also use font widths different from 8.
Matrox unified driver multihead support
CONFIG_FB_MATROX_MULTIHEAD
Say Y here if you have more than one (supported) Matrox device in
your computer and you want to use all of them. If you have only one
device, you should say N because the driver compiled with Y is
larger and a bit slower, especially on ia32 (ix86).
If you said M to "Matrox unified accelerated driver" and N here, you
will still be able to use several Matrox devices simultaneously.
This is slightly faster but uses 40 KB of kernel memory per Matrox
card. You do this by inserting several instances of the module
matroxfb.o into the kernel with insmod, supplying the parameter
"dev=N" where N is 0, 1, etc. for the different Matrox devices.
MDA text console (dual-headed)
CONFIG_MDA_CONSOLE
Say Y here if you have an old MDA or monochrome Hercules graphics
adapter in your system acting as a second head ( = video card). You
will then be able to use two monitors with your Linux system. Do not
say Y here if your MDA card is the primary card in your system; the
normal VGA driver will handle it.
This driver is also available as a module ( = code which can be
inserted and removed from the running kernel whenever you want).
The module will be called mdacon.o. If you want to compile it as
a module, say M here and read Documentation/modules.txt.
If unsure, say N.
SBUS and UPA frame buffers
CONFIG_FB_SBUS
Say Y if you want support for SBUS or UPA based frame buffer device.
Creator/Creator3D support
CONFIG_FB_CREATOR
This is the frame buffer device driver for the Creator and Creator3D
graphics boards.
CGsix (GX,TurboGX) support
CONFIG_FB_CGSIX
This is the frame buffer device driver for the CGsix (GX, TurboGX)
frame buffer.
BWtwo support
CONFIG_FB_BWTWO
This is the frame buffer device driver for the BWtwo frame buffer.
CGthree support
CONFIG_FB_CGTHREE
This is the frame buffer device driver for the CGthree frame buffer.
TCX (SS4/SS5 only) support
CONFIG_FB_TCX
This is the frame buffer device driver for the TCX 24/8bit frame
buffer.
Virtual Frame Buffer support (ONLY FOR TESTING!)
CONFIG_FB_VIRTUAL
This is a `virtual' frame buffer device. It operates on a chunk of
unswapable kernel memory instead of on the memory of a graphics
board. This means you cannot see any output sent to this frame
buffer device, while it does consume precious memory. The main use
of this frame buffer device is testing and debugging the frame
buffer subsystem. Do NOT enable it for normal systems! To protect
the innocent, it has to be enabled explicitly at boot time using the
kernel option `video=vfb:'.
This driver is also available as a module ( = code which can be
inserted and removed from the running kernel whenever you want). The
module will be called vfb.o. If you want to compile it as a module,
say M here and read Documentation/modules.txt.
If unsure, say N.
Advanced low level driver options
CONFIG_FBCON_ADVANCED
The frame buffer console uses character drawing routines that are
tailored to the specific organization of pixels in the memory of
your graphics hardware. These are called the low level frame buffer
console drivers. Note that they are used for text console output
only; they are NOT needed for graphical applications.
If you say N here, the needed low level drivers are automatically
enabled, depending on what frame buffer devices you selected above.
This is recommended for most users.
If you say Y here, you have more fine-grained control over which low
level drivers are enabled. You can e.g. leave out low level drivers
for color depths you do not intend to use for text consoles.
Low level frame buffer console drivers can be modules ( = code which
can be inserted and removed from the running kernel whenever you
want). The modules will be called fbcon-*.o. If you want to compile
(some of) them as modules, read Documentation/modules.txt.
If unsure, say N.
Monochrome support
CONFIG_FBCON_MFB
This is the low level frame buffer console driver for monochrome
(2 colors) packed pixels.
2 bpp packed pixels support
CONFIG_FBCON_CFB2
This is the low level frame buffer console driver for 2 bits per
pixel (4 colors) packed pixels.
4 bpp packed pixels support
CONFIG_FBCON_CFB4
This is the low level frame buffer console driver for 4 bits per
pixel (16 colors) packed pixels.
8 bpp packed pixels support
CONFIG_FBCON_CFB8
This is the low level frame buffer console driver for 8 bits per
pixel (256 colors) packed pixels.
16 bpp packed pixels support
CONFIG_FBCON_CFB16
This is the low level frame buffer console driver for 15 or 16 bits
per pixel (32K or 64K colors, also known as `hicolor') packed
pixels.
24 bpp packed pixels support
CONFIG_FBCON_CFB24
This is the low level frame buffer console driver for 24 bits per
pixel (16M colors, also known as `truecolor') packed pixels. It is
NOT for `sparse' 32 bits per pixel mode.
32 bpp packed pixels support
CONFIG_FBCON_CFB32
This is the low level frame buffer console driver for 32 bits per
pixel (16M colors, also known as `truecolor') sparse packed pixels.
Amiga bitplanes support
CONFIG_FBCON_AFB
This is the low level frame buffer console driver for 1 to 8
bitplanes (2 to 256 colors) on Amiga.
Amiga interleaved bitplanes support
CONFIG_FBCON_ILBM
This is the low level frame buffer console driver for 1 to 8
interleaved bitplanes (2 to 256 colors) on Amiga.
Atari interleaved bitplanes (2 planes) support
CONFIG_FBCON_IPLAN2P2
This is the low level frame buffer console driver for 2 interleaved
bitplanes (4 colors) on Atari.
Atari interleaved bitplanes (4 planes) support
CONFIG_FBCON_IPLAN2P4
This is the low level frame buffer console driver for 4 interleaved
bitplanes (16 colors) on Atari.
Atari interleaved bitplanes (8 planes) support
CONFIG_FBCON_IPLAN2P8
This is the low level frame buffer console driver for 8 interleaved
bitplanes (256 colors) on Atari.
Mac variable bpp packed pixels support
CONFIG_FBCON_MAC
This is the low level frame buffer console driver for 1/2/4/8/16/32
bits per pixel packed pixels on Mac. It supports variable font
widths for low resolution screens.
#VGA 16-color planar support
#CONFIG_FBCON_VGA_PLANES
###
###What is this?
###
VGA characters/attributes support
CONFIG_FBCON_VGA
This is the low level frame buffer console driver for VGA text mode;
it is used by frame buffer device drivers that support VGA text
mode.
Parallel-port support
CONFIG_PARPORT
If you want to use devices connected to your machine's parallel port
(the connector at the computer with 25 holes), e.g. printer, ZIP
drive, PLIP link (Parallel Line Internet Protocol is mainly used to
create a mini network by connecting the parallel ports of two local
machines) etc., then you need to say Y here; please read
Documentation/parport.txt and drivers/parport/BUGS-parport.
For extensive information about drivers for many devices attaching
to the parallel port see http://www.torque.net/linux-pp.html on the
WWW.
It is possible to share a single parallel port among several devices
and it is safe to compile all the corresponding drivers into the
kernel. If you want to compile parallel port support as a module ( =
code which can be inserted in and removed from the running kernel
whenever you want), say M here and read Documentation/modules.txt.
The module will be called parport.o. If you have more than one
parallel port and want to specify which port and IRQ to be used by
this driver at module load time, take a look at
Documentation/networking/parport.txt.
If unsure, say Y.
PC-style hardware
CONFIG_PARPORT_PC
You should say Y here if you have a PC-style parallel port. All IBM
PC compatible computers and some Alphas have PC-style parallel
ports.
This code is also available as a module. If you want to compile it
as a module ( = code which can be inserted in and removed from the
running kernel whenever you want), say M here and read
Documentation/modules.txt. The module will be called parport_pc.o.
If unsure, say Y.
Use FIFO/DMA if available
CONFIG_PARPORT_PC_FIFO
Many parallel port chipsets provide hardware that can speed up
printing. Say Y here if you want to take advantage of that.
As well as actually having a FIFO, or DMA capability, the kernel
will need to know which IRQ the parallel port has. By default,
parallel port interrupts will not be used, and so neither will the
FIFO. See Documentation/parport.txt to find out how to specify
which IRQ/DMA to use.
Support for PCMCIA management for PC-style ports
CONFIG_PARPORT_PC_PCMCIA
Say Y here if you need PCMCIA support for your PC-style parallel
ports. If unsure, say N.
Support foreign hardware
CONFIG_PARPORT_OTHER
Say Y here if you want to be able to load driver modules to support
other non-standard types of parallel ports. This causes a
performance loss, so most people say N.
Sun Ultra/AX-style hardware
CONFIG_PARPORT_AX
Say Y here if you need support for the parallel port hardware on Sun
Ultra/AX machines. This code is also available as a module (say M),
called parport_ax.o. If in doubt, saying N is the safe plan.
Support IEEE1284 status readback
CONFIG_PRINTER_READBACK
If you have a device on your parallel port that support this protocol,
this option'll enable it to report its status.
It is safe to say Y.
IEEE1284 transfer modes
CONFIG_PARPORT_1284
If you have a printer that supports status readback or device ID, or
want to use a device that uses enhanced parallel port transfer modes
such as EPP and ECP, say Y here to enable advanced IEEE 1284
transfer modes. Also say Y if you want device ID information to
appear in /proc/sys/dev/parport/*/autoprobe*. It is safe to say N.
Enable loadable module support
CONFIG_MODULES
Kernel modules are small pieces of compiled code which can be
inserted in or removed from the running kernel, using the programs
insmod and rmmod. This is described in the file
Documentation/modules.txt, including the fact that you have to say
"make modules" in order to compile the modules that you chose during
kernel configuration. Modules can be device drivers, file systems,
binary executable formats, and so on. If you think that you may want
to make use of modules with this kernel in the future, then say Y
here. If unsure, say Y.
Set version information on all symbols for modules
CONFIG_MODVERSIONS
Usually, modules have to be recompiled whenever you switch to a new
kernel. Saying Y here makes it possible, and safe, to use the
same modules even after compiling a new kernel; this requires the
program modprobe. All the software needed for module support is in
the modutils package (check the file Documentation/Changes for
location and latest version). NOTE: if you say Y here but don't
have the program genksyms (which is also contained in the above
mentioned modutils package), then the building of your kernel will
fail. If you are going to use modules that are generated from
non-kernel sources, you would benefit from this option. Otherwise
it's not that important. So, N ought to be a safe bet.
Kernel module loader support
CONFIG_KMOD
Normally when you have selected some drivers and/or file systems to
be created as loadable modules, you also have the responsibility to
load the corresponding modules (using the programs insmod or
modprobe) before you can use them. If you say Y here however, the
kernel will be able to load modules for itself: when a part of the
kernel needs a module, it runs modprobe with the appropriate
arguments, thereby loading the module if it is available. (This is a
replacement for kerneld.) Say Y here and read about configuring it
in Documentation/kmod.txt.
ARP daemon support (EXPERIMENTAL)
CONFIG_ARPD
Normally, the kernel maintains an internal cache which maps IP
addresses to hardware addresses on the local network, so that
Ethernet/Token Ring/ etc. frames are sent to the proper address on
the physical networking layer. For small networks having a few
hundred directly connected hosts or less, keeping this address
resolution (ARP) cache inside the kernel works well. However,
maintaining an internal ARP cache does not work well for very large
switched networks, and will use a lot of kernel memory if TCP/IP
connections are made to many machines on the network.
If you say Y here, the kernel's internal ARP cache will never grow
to more than 256 entries (the oldest entries are expired in a LIFO
manner) and communication will be attempted with the user space ARP
daemon arpd. Arpd then answers the address resolution request either
from its own cache or by asking the net.
This code is experimental and also obsolete. If you want to use it,
you need to find a version of the daemon arpd on the net somewhere,
and you should also say Y to "Kernel/User network link driver",
below. If unsure, say N.
TCP/IP networking
CONFIG_INET
These are the protocols used on the Internet and on most local
Ethernets. It is highly recommended to say Y here (this will enlarge
your kernel by about 144 KB), since some programs (e.g. the X window
system) use TCP/IP even if your machine is not connected to any
other computer. You will get the so-called loopback device which
allows you to ping yourself (great fun, that!).
For an excellent introduction to Linux networking, please read the
NET-3-HOWTO, available from
http://www.linuxdoc.org/docs.html#howto .
This option is also necessary if you want to use the full power of
term (term is a program which gives you almost full Internet
connectivity if you have a regular dial up shell account on some
Internet connected Unix computer; for more information, read
http://www.bart.nl/~patrickr/term-howto/Term-HOWTO.html ).
If you say Y here and also to "/proc file system support" and "Sysctl
support" below, you can change various aspects of the behavior of
the TCP/IP code by writing to the (virtual) files in
/proc/sys/net/ipv4/*; the options are explained in the file
Documentation/Networking/ip-sysctl.txt.
Short answer: say Y.
IP: multicasting
CONFIG_IP_MULTICAST
This is code for addressing several networked computers at once,
enlarging your kernel by about 2 kB. You need multicasting if you
intend to participate in the MBONE, a high bandwidth network on top
of the Internet which carries audio and video broadcasts. More
information about the MBONE is on the WWW at
http://www-itg.lbl.gov/mbone/ . Information about the multicast
capabilities of the various network cards is contained in
Documentation/networking/multicast.txt. For most people, it's safe
to say N.
IP: advanced router
CONFIG_IP_ADVANCED_ROUTER
If you intend to run your Linux box mostly as a router, i.e. as a
computer that forwards and redistributes network packets, say Y; you
will then be presented with several options that allow more precise
control about the routing process.
The answer to this question won't directly affect the kernel:
answering N will just cause this configure script to skip all the
questions about advanced routing.
Note that your box can only act as a router if you enable IP
forwarding in your kernel; you can do that by saying Y to "/proc
file system support" and "Sysctl support" below and executing the
line
echo "1" > /proc/sys/net/ipv4/ip_forward
at boot time after the /proc file system has been mounted.
If you turn on IP forwarding, you will also get the rp_filter, which
automatically rejects incoming packets if the routing table entry
for their source address doesn't match the network interface they're
arriving on. This has security advantages because it prevents the
so-called IP spoofing, however it can pose problems if you use
asymmetric routing (packets from you to a host take a different path
than packets from that host to you) or if you operate a non-routing
host which has several IP addresses on different interfaces. To turn
rp_filter off use:
echo 0 > /proc/sys/net/ipv4/conf/<device>/rp_filter
or
echo 0 > /proc/sys/net/ipv4/conf/all/rp_filter
If unsure, say N here.
IP: policy routing
CONFIG_IP_MULTIPLE_TABLES
Normally, a router decides what to do with a received packet based
solely on the packet's final destination address. If you say Y here,
the Linux router will also be able to take the packet's source
address into account. Furthermore, if you also say Y to "IP: use TOS
value as routing key" below, the TOS (Type-Of-Service) field of the
packet can be used for routing decisions as well. In addition, if
you say Y here and to "IP: fast network address translation" below,
the router will also be able to modify source and destination
addresses of forwarded packets.
If you are interested in this, please see the preliminary
documentation at http://www.compendium.com.ar/policy-routing.txt and
ftp://post.tepkom.ru/pub/vol2/Linux/docs/advanced-routing.tex . You
will need supporting software from ftp://ftp.inr.ac.ru/ip-routing/
If unsure, say N.
IP: equal cost multipath
CONFIG_IP_ROUTE_MULTIPATH
Normally, the routing tables specify a single action to be taken in
a deterministic manner for a given packet. If you say Y here
however, it becomes possible to attach several actions to a packet
pattern, in effect specifying several alternative paths to travel
for those packets. The router considers all these paths to be of
equal "cost" and chooses one of them in a non-deterministic fashion
if a matching packet arrives.
IP: use TOS value as routing key
CONFIG_IP_ROUTE_TOS
The header of every IP packet carries a TOS (Type of Service) value
with which the packet requests a certain treatment, e.g. low latency
(for interactive traffic), high throughput, or high reliability. If
you say Y here, you will be able to specify different routes for
packets with different TOS values.
IP: use FWMARK value as routing key
CONFIG_IP_ROUTE_FWMARK
If you say Y here, you will be able to specify different routes for
packets with different FWMARK ("firewalling mark") values
(see ipchains(8), "-m" argument).
IP: verbose route monitoring
CONFIG_IP_ROUTE_VERBOSE
If you say Y here, which is recommended, then the kernel will print
verbose messages regarding the routing, for example warnings about
received packets which look strange and could be evidence of an
attack or a misconfigured system somewhere. The information is
handled by the klogd daemon which is responsible for kernel messages
("man klogd").
IP: large routing tables
CONFIG_IP_ROUTE_LARGE_TABLES
If you have routing zones that grow to more than about 64 entries,
you may want to say Y here to speed up the routing process.
IP: fast network address translation
CONFIG_IP_ROUTE_NAT
If you say Y here, your router will be able to modify source and
destination addresses of packets that pass through it, in a manner
you specify. General information about Network Address Translation
can be gotten from the document
http://www.csn.tu-chemnitz.de/~mha/linux-ip-nat/diplom/nat.html
IP: optimize as router not host
CONFIG_IP_ROUTER
Some Linux network drivers use a technique called copy and checksum
to optimize host performance. For a machine which acts as a router
most of the time and is forwarding most packets to another host this
is however a loss. If you say Y here, copy and checksum will be
switched off. In the future, it may make other changes which
optimize for router operation.
Note that your box can only act as a router if you enable IP
forwarding in your kernel; you can do that by saying Y to "/proc
file system support" and "Sysctl support" below and executing the
line
echo "1" > /proc/sys/net/ipv4/ip_forward
at boot time after the /proc file system has been mounted. You can do
that even if you say N here.
If unsure, say N here.
IP: kernel level autoconfiguration
CONFIG_IP_PNP
This enables automatic configuration of IP addresses of devices and
of the routing table during kernel boot, based on either information
supplied at the kernel command line or by BOOTP or RARP protocols.
You need to say Y only for diskless machines requiring network
access to boot (in which case you want to say Y to "Root file system
on NFS" as well), because all other machines configure the network
in their startup scripts.
BOOTP support
CONFIG_IP_PNP_BOOTP
If you want your Linux box to mount its whole root file system (the
one containing the directory /) from some other computer over the
net via NFS and you want the IP address of your computer to be
discovered automatically at boot time using the BOOTP protocol (a
special protocol designed for doing this job), say Y here. In case
the boot ROM of your network card was designed for booting Linux and
does BOOTP itself, providing all necessary information on the kernel
command line, you can say N here. If unsure, say Y. Note that if you
want to use BOOTP, a BOOTP server must be operating on your network.
Read Documentation/nfsroot.txt for details.
RARP support
CONFIG_IP_PNP_RARP
If you want your Linux box to mount its whole root file system (the
one containing the directory /) from some other computer over the
net via NFS and you want the IP address of your computer to be
discovered automatically at boot time using the RARP protocol (an
older protocol which is being obsoleted by BOOTP and DHCP), say Y
here. Note that if you want to use RARP, a RARP server must be
operating on your network. Read Documentation/nfsroot.txt for
details.
IP: tunneling
CONFIG_NET_IPIP
Tunneling means encapsulating data of one protocol type within
another protocol and sending it over a channel that understands the
encapsulating protocol. This particular tunneling driver implements
encapsulation of IP within IP, which sounds kind of pointless, but
can be useful if you want to make your (or some other) machine
appear on a different network than it physically is, or to use
mobile-IP facilities (allowing laptops to seamlessly move between
networks without changing their IP addresses; check out
http://anchor.cs.binghamton.edu/~mobileip/LJ/index.html ).
Saying Y to this option will produce two modules ( = code which can
be inserted in and removed from the running kernel whenever you
want). Most people won't need this and can say N.
IP: GRE tunnels over IP
CONFIG_NET_IPGRE
Tunneling means encapsulating data of one protocol type within
another protocol and sending it over a channel that understands the
encapsulating protocol. This particular tunneling driver implements
GRE (Generic Routing Encapsulation) and at this time allows
encapsulating of IPv4 or IPv6 over existing IPv4 infrastructure.
This driver is useful if the other endpoint is a Cisco router: Cisco
likes GRE much better than the other Linux tunneling driver ("IP:
tunneling" above). In addition, GRE allows multicast redistribution
through the tunnel.
IP: broadcast GRE over IP
CONFIG_NET_IPGRE_BROADCAST
One application of GRE/IP is to construct a broadcast WAN (Wide Area
Network), which looks like a normal Ethernet LAN (Local Area
Network), but can be distributed all over the Internet. If you want
to do that, say Y here and to "IP: multicast routing" below.
IP: aliasing support
CONFIG_IP_ALIAS
Sometimes it is useful to give several IP addresses to a single
physical network interface (serial port or Ethernet card). The most
common case is that you want to serve different WWW or FTP documents
to the outside depending on which of your host names was used to
connect to you. This is called "multihosting" or "virtual domains"
or "virtual hosting services" and is explained in the
Virtual-Services-HOWTO, available from
http://www.linuxdoc.org/docs.html#howto .
Another scenario would be that there are two logical networks living
on your local Ethernet and you want to access them both with the
same Ethernet card. This can also be done if you say Y here.
The configuration of these alias addresses is done with a special
name syntax explained in Documentation/networking/alias.txt and in
the IP-Alias mini-HOWTO. If you want this, say Y. Most people don't
need it and say N.
IP: multicast routing
CONFIG_IP_MROUTE
This is used if you want your machine to act as a router for IP
packets that have several destination addresses. It is needed on the
MBONE, a high bandwidth network on top of the Internet which carries
audio and video broadcasts. In order to do that, you would most
likely run the program mrouted. Information about the multicast
capabilities of the various network cards is contained in
Documentation/networking/multicast.txt. If you haven't heard about
it, you don't need it.
IP: PIM-SM version 1 support
CONFIG_IP_PIMSM_V1
Kernel side support for Sparse Mode PIM (Protocol Independent
Multicast) version 1. This multicast routing protocol is used widely
because Cisco supports it. You need special software to use it
(pimd-v1). Please see http://netweb.usc.edu/pim/ for more
information about PIM.
Say Y if you want to use PIM-SM v1. Note that you can say N here if
you just want to use Dense Mode PIM.
IP: PIM-SM version 2 support
CONFIG_IP_PIMSM_V2
Kernel side support for Sparse Mode PIM version 2. In order to use
this, you need an experimental routing daemon supporting it (pimd or
gated-5). This routing protocol is not used widely, so say N unless
you want to play with it.
PC/TCP compatibility mode
CONFIG_INET_PCTCP
If you have been having difficulties telnetting to your Linux
machine from a DOS system that uses (broken) PC/TCP networking
software (all versions up to OnNet 2.0) over your local Ethernet try
saying Y here. Everyone else says N.
People having problems with NCSA telnet should see the file
linux/Documentation/networking/ncsa-telnet.
Assume subnets are local
CONFIG_INET_SNARL
Say Y if you are on a subnetted network with all machines connected
by Ethernet segments only, as this option optimizes network access
for this special case. If there are other connections, e.g. SLIP
links, between machines of your IP network, say N. If in doubt,
answer N. The PATH mtu discovery facility will cover most cases
anyway.
Path MTU Discovery (normally enabled)
CONFIG_PATH_MTU_DISCOVERY
MTU (maximal transfer unit) is the size of the chunks we send out
over the net. "Path MTU Discovery" means that, instead of always
sending very small chunks, we start out sending big ones and if we
then discover that some host along the way likes its chunks smaller,
we adjust to a smaller size. This is good, so most people say Y
here.
However, some DOS software (versions of DOS NCSA telnet and Trumpet
Winsock in PPP mode) is broken and won't be able to connect to your
Linux machine correctly in all cases (especially through a terminal
server) unless you say N here. See
Documentation/networking/ncsa-telnet for the location of fixed NCSA
telnet clients. If in doubt, say Y.
Disable NAGLE algorithm (normally enabled)
CONFIG_TCP_NAGLE_OFF
The NAGLE algorithm works by requiring an acknowledgment before
sending small IP frames (packets). This keeps tiny telnet and
rlogin packets from congesting Wide Area Networks. Most people
strongly recommend to say N here, thereby leaving NAGLE
enabled. Those programs that would benefit from disabling this
facility can do it on a per connection basis themselves.
IP: Allow large windows (not recommended if <16 MB of memory)
CONFIG_SKB_LARGE
On high speed, long distance networks the performance limit on
networking becomes the amount of data the sending machine can buffer
until the other end confirms its reception. (At 45 Mbit/second there
are a lot of bits between New York and London ...). If you say Y
here, bigger buffers can be used which allows larger amounts of data
to be "in flight" at any given time. It also means a user process
can require a lot more memory for network buffers and thus this
option is best used only on machines with 16 MB of memory or higher.
Unless you are using long links with end to end speeds of over 2
Mbit a second or satellite links this option will make no difference
to performance.
Unix domain sockets
CONFIG_UNIX
If you say Y here, you will include support for Unix domain sockets;
sockets are the standard Unix mechanism for establishing and
accessing network connections. Many commonly used programs such as
the X Window system and syslog use these sockets even if your
machine is not connected to any network. Unless you are working on
an embedded system or something similar, you therefore definitely
want to say Y here.
However, the socket support is also available as a module ( = code
which can be inserted in and removed from the running kernel
whenever you want). If you want to compile it as a module, say M
here and read Documentation/modules.txt. The module will be called
unix.o. If you try building this as a module and you have said Y to
"Kernel module loader support" above, be sure to add 'alias net-pf-1
unix' to your /etc/modules.conf file. Note that several important
services won't work correctly if you say M here and then neglect to
load the module.
Say Y unless you know what you are doing.
The IPv6 protocol (EXPERIMENTAL)
CONFIG_IPV6
This is experimental support for the next version of the Internet
Protocol: IP version 6 (also called IPng "IP next generation").
Features of this new protocol include: expanded address space,
authentication and privacy, and seamless interoperability with the
current version of IP (IP version 4). For general information about
IPv6, see http://playground.sun.com/pub/ipng/html/ipng-main.html ;
for specific information about IPv6 under Linux read the HOWTO at
http://www.bieringer.de/linux/IPv6/ and the file net/ipv6/README in
the kernel source.
If you want to use IPv6, please upgrade to the newest net-tools as
given in Documentation/Changes. You will still be able to do regular
IPv4 networking as well.
This protocol support is also available as a module ( = code which
can be inserted in and removed from the running kernel whenever you
want). The module will be called ipv6.o. If you want to compile it
as a module, say M here and read Documentation/modules.txt.
It is safe to say N here for now.
IPv6: enable EUI-64 token format
CONFIG_IPV6_EUI64
6bone, the network of computers using the IPv6 protocol, is moving
to a new aggregatable address format and a new link local address
assignment (EUI-64). Say Y if your site has upgraded already, or
has started to upgrade.
IPv6: disable provider based addresses
CONFIG_IPV6_NO_PB
Linux tries to operate correctly when your site has moved to EUI-64
only partially. Unfortunately, the two address formats (old:
"provider based" and new: "aggregatable") are incompatible. Say Y if
your site finished the upgrade to EUI-64, and/or you encountered
some problems caused by the presence of two link-local addresses on
an interface.
IPv6: routing messages via old netlink
CONFIG_IPV6_NETLINK
You can say Y here to receive routing messages from the IPv6 code
through the old netlink interface. However, a better option is to
say Y to "Kernel/User network link driver" and to "Routing
messages" instead.
IPX networking
CONFIG_IPX
This is support for the Novell networking protocol, IPX, commonly
used for local networks of Windows machines. You need it if you want
to access Novell NetWare file or print servers using the Linux
Novell client ncpfs (available from
ftp://metalab.unc.edu/pub/Linux/system/filesystems/ ) or from within
the Linux DOS emulator DOSEMU (read the DOSEMU-HOWTO, available from
http://www.linuxdoc.org/docs.html#howto ). In order to do the
former, you'll also have to say Y to "NCP file systems support",
below.
IPX is similar in scope to IP, while SPX, which runs on top of IPX,
is similar to TCP. There is also experimental support for SPX in
Linux (see "SPX networking", below).
To turn your Linux box into a fully featured NetWare file server and
IPX router, say Y here and fetch either lwared from
ftp://metalab.unc.edu/pub/Linux/system/network/daemons/ or mars_nwe
from ftp://ftp.gwdg.de/pub/linux/misc/ncpfs . For more information,
read the IPX-HOWTO available from
http://www.linuxdoc.org/docs.html#howto .
General information about how to connect Linux, Windows machines and
Macs is on the WWW at http://www.eats.com/linux_mac_win.html .
The IPX driver would enlarge your kernel by about 16 KB. This driver
is also available as a module ( = code which can be inserted in and
removed from the running kernel whenever you want). The module will
be called ipx.o. If you want to compile it as a module, say M here
and read Documentation/modules.txt. Unless you want to integrate
your Linux box with a local Novell network, say N.
IPX: Full internal IPX network
CONFIG_IPX_INTERN
Every IPX network has an address that identifies it. Sometimes it is
useful to give an IPX "network" address to your Linux box as well
(for example if your box is acting as a file server for different
IPX networks: it will then be accessible from everywhere using the
same address). The way this is done is to create a virtual internal
"network" inside your box and to assign an IPX address to this
network. Say Y here if you want to do this; read the IPX-HOWTO at
http://www.linuxdoc.org/docs.html#howto for details.
The full internal IPX network enables you to allocate sockets on
different virtual nodes of the internal network. This is done by
evaluating the field sipx_node of the socket address given to the
bind call. So applications should always initialize the node field
to 0 when binding a socket on the primary network. In this case the
socket is assigned the default node that has been given to the
kernel when the internal network was created. By enabling the full
internal IPX network the cross-forwarding of packets targeted at
'special' sockets to sockets listening on the primary network is
disabled. This might break existing applications, especially RIP/SAP
daemons. A RIP/SAP daemon that works well with the full internal net
can be found on ftp://ftp.gwdg.de/pub/linux/misc/ncpfs .
If you don't know what you are doing, say N.
IPX: SPX networking (EXPERIMENTAL)
CONFIG_SPX
The Sequenced Packet eXchange protocol is a transport layer protocol
built on top of IPX. It is used in Novell NetWare systems for
client-server applications and is similar to TCP (which runs on top
of IP).
Note that Novell NetWare file sharing does not use SPX; it uses a
protocol called NCP, for which separate Linux support is available
("NCP file systems support" below for the client side, and the user
space programs lwared or mars_nwe for the server side).
Say Y here if you have use for SPX; read the IPX-HOWTO at
http://www.linuxdoc.org/docs.html#howto for details.
This driver is also available as a module ( = code which can be
inserted in and removed from the running kernel whenever you want).
The module will be called af_spx.o. If you want to compile it as a
module, say M here and read Documentation/modules.txt.
DECnet networking (EXPERIMENTAL)
CONFIG_DECNET
The DECnet networking protocol was used in many products made by
Digital (now Compaq). It provides reliable stream and sequenced
packet communications over which run a variety of services similar
to those which run over TCP/IP.
To find some tools to use with the kernel layer support, please
look at Patrick Caulfield's web site:
http://linux.dreamtime.org/decnet/
More detailed documentation is available in the
Documentation/networking/decnet.txt file.
Be sure to say Y to "/proc file systems support" and "Sysctl support"
below when using DECnet, since you will need sysctl support to aid
in configuration at run time.
The DECnet code is also available as a module ( = code which can be
inserted in and removed from the running kernel whenever you want).
The module is called decnet.o.
DECnet SIOCFIGCONF support
CONFIG_DECNET_SIOCGIFCONF
This option should only be turned on if you are really sure that
you know what you are doing. It can break other applications which
use this system call and the proper way to get the information
provided by this call is to use rtnetlink.
If unsure, say N.
DECnet Router Support (EXPERIMENTAL)
CONFIG_DECNET_ROUTER
Add support for turning your DECnet Endnode into a level 1 or 2
router. This is an unfinished option for developers only. If you do
turn it on, then make sure that you also say Y to "Kernel/User
network link driver" and "Routing messages", since rtnetlink is the
only current method of configuration.
DECnet Raw Socket Support
CONFIG_DECNET_RAW
Add support for the SOCK_RAW type under DECnet. Used by userland
routing programs to receive routing messages from the kernel and
also as a general debugging aid to see what's going on "under the
hood".
AppleTalk DDP
CONFIG_ATALK
AppleTalk is the way Apple computers speak to each other on a
network. If your Linux box is connected to such a network and you
want to join the conversation, say Y. You will need to use the
netatalk package so that your Linux box can act as a print and file
server for Macs as well as access AppleTalk printers. Check out
http://threepio.hitchcock.org/cgi-bin/faq/netatalk/faq.pl on the WWW
for details. EtherTalk is the name used for AppleTalk over Ethernet
and the cheaper and slower LocalTalk is AppleTalk over a proprietary
Apple network using serial links. EtherTalk and LocalTalk are fully
supported by Linux.
General information about how to connect Linux, Windows machines and
Macs is on the WWW at http://www.eats.com/linux_mac_win.html The
NET-3-HOWTO, available from
http://www.linuxdoc.org/docs.html#howto , contains valuable
information as well.
This driver is also available as a module ( = code which can be
inserted in and removed from the running kernel whenever you want).
The module is called appletalk.o. If you want to compile it as a
module, say M here and read Documentation/modules.txt. I hear that
the GNU boycott of Apple is over, so even politically correct people
are allowed to say Y here.
AppleTalk-IP driver support
CONFIG_IPDDP
This allows IP networking for users who only have AppleTalk
networking available. This feature is experimental. With this
driver, you can encapsulate IP inside AppleTalk (e.g. if your Linux
box is stuck on an AppleTalk only network) or decapsulate (e.g. if
you want your Linux box to act as an Internet gateway for a zoo of
AppleTalk connected Macs). Please see the file
Documentation/networking/ipddp.txt for more information.
If you say Y here, the AppleTalk-IP support will be compiled into
the kernel. In this case, you can either use encapsulation or
decapsulation, but not both. With the following two questions, you
decide which one you want.
If you say M here, the AppleTalk-IP support will be compiled as a
module ( = code which can be inserted in and removed from the
running kernel whenever you want, read Documentation/modules.txt).
The module is called ipddp.o. In this case, you will be able to use
both encapsulation and decapsulation simultaneously, by loading two
copies of the module and specifying different values for the module
option ipddp_mode.
IP to AppleTalk-IP Encapsulation support
CONFIG_IPDDP_ENCAP
If you say Y here, the AppleTalk-IP code will be able to encapsulate
IP packets inside AppleTalk frames; this is useful if your Linux box
is stuck on an AppleTalk network (which hopefully contains a
decapsulator somewhere). Please see
Documentation/networking/ipddp.txt for more information. If you said
Y to "AppleTalk-IP driver support" above and you say Y here, then
you cannot say Y to "AppleTalk-IP to IP Decapsulation support",
below.
AppleTalk-IP to IP Decapsulation support
CONFIG_IPDDP_DECAP
If you say Y here, the AppleTalk-IP code will be able to decapsulate
AppleTalk-IP frames to IP packets; this is useful if you want your
Linux box to act as an Internet gateway for an AppleTalk network.
Please see Documentation/networking/ipddp.txt for more information.
If you said Y to "AppleTalk-IP driver support" above and you say Y
here, then you cannot say Y to "IP to AppleTalk-IP Encapsulation
support", above.
Apple/Farallon LocalTalk PC card support
CONFIG_LTPC
This allows you to use the AppleTalk PC card to connect to LocalTalk
networks. The card is also known as the Farallon PhoneNet PC card.
If you are in doubt, this card is the one with the 65C02 chip on it.
You also need version 1.3.3 or later of the netatalk package.
This driver is experimental, which means that it may not work.
See the file Documentation/networking/ltpc.txt.
COPS LocalTalk PC card support
CONFIG_COPS
This allows you to use COPS AppleTalk cards to connect to LocalTalk
networks. You also need version 1.3.3 or later of the netatalk
package. This driver is experimental, which means that it may not
work. This driver will only work if you choose "AppleTalk DDP"
networking support, above.
Please read the file Documentation/networking/cops.txt.
Dayna firmware support
CONFIG_COPS_DAYNA
Support COPS compatible cards with Dayna style firmware (Dayna
DL2000/ Daynatalk/PC (half length), COPS LT-95, Farallon PhoneNET PC
III, Farallon PhoneNET PC II).
Tangent firmware support
CONFIG_COPS_TANGENT
Support COPS compatible cards with Tangent style firmware (Tangent
ATB_II, Novell NL-1000, Daystar Digital LT-200.
Amateur Radio support
CONFIG_HAMRADIO
If you want to connect your Linux box to an amateur radio, answer Y
here. You want to read http://www.tapr.org/tapr/html/pkthome.html
and the HAM-HOWTO and the AX25-HOWTO, both available from
http://www.linuxdoc.org/docs.html#howto .
Note that the answer to this question won't directly affect the
kernel: saying N will just cause this configure script to skip all
the questions about amateur radio.
Amateur Radio AX.25 Level 2
CONFIG_AX25
This is the protocol used for computer communication over amateur
radio. It is either used by itself for point-to-point links, or to
carry other protocols such as tcp/ip. To use it, you need a device
that connects your Linux box to your amateur radio. You can either
use a low speed TNC (a Terminal Node Controller acts as a kind of
modem connecting your computer's serial port to your radio's
microphone input and speaker output) supporting the KISS protocol or
one of the various SCC cards that are supported by the generic Z8530
or the DMA SCC driver. Another option are the Baycom modem serial
and parallel port hacks or the sound card modem (supported by their
own drivers). If you say Y here, you also have to say Y to one of
those drivers.
Information about where to get supporting software for Linux amateur
radio as well as information about how to configure an AX.25 port is
contained in the AX25-HOWTO, available from
http://www.linuxdoc.org/docs.html#howto . You might also want to
check out the file Documentation/networking/ax25.txt in the kernel
source. More information about digital amateur radio in general is
on the WWW at http://www.tapr.org/tapr/html/pkthome.html .
This driver is also available as a module ( = code which can be
inserted in and removed from the running kernel whenever you want).
The module will be called ax25.o. If you want to compile it as a
module, say M here and read Documentation/modules.txt.
AX.25 DAMA Slave support
CONFIG_AX25_DAMA_SLAVE
DAMA is a mechanism to prevent collisions when doing AX.25
networking. A DAMA server (called "master") accepts incoming traffic
from clients (called "slaves") and redistributes it to other slaves.
If you say Y here, your Linux box will act as a DAMA slave; this is
transparent in that you don't have to do any special DAMA
configuration. (Linux cannot yet act as a DAMA server.) If unsure,
say N.
AX.25 DAMA Master support
CONFIG_AX25_DAMA_MASTER
DAMA is a mechanism to prevent collisions when doing AX.25
networking. A DAMA server (called "master") accepts incoming traffic
from clients (called "slaves") and redistributes it to other
slaves. If you say Y here, your Linux box will act as a DAMA server.
If unsure, say N.
Amateur Radio NET/ROM
CONFIG_NETROM
NET/ROM is a network layer protocol on top of AX.25 useful for
routing.
A comprehensive listing of all the software for Linux amateur radio
users as well as information about how to configure an AX.25 port is
contained in the AX25-HOWTO, available from
http://www.linuxdoc.org/docs.html#howto . You also might want to
check out the file Documentation/networking/ax25.txt. More
information about digital amateur radio in general is on the WWW at
http://www.tapr.org/tapr/html/pkthome.html .
This driver is also available as a module ( = code which can be
inserted in and removed from the running kernel whenever you want).
The module will be called netrom.o. If you want to compile it as a
module, say M here and read Documentation/modules.txt.
Amateur Radio X.25 PLP (Rose)
CONFIG_ROSE
The Packet Layer Protocol (PLP) is a way to route packets over X.25
connections in general and amateur radio AX.25 connections in
particular, essentially an alternative to NET/ROM.
A comprehensive listing of all the software for Linux amateur radio
users as well as information about how to configure an AX.25 port is
contained in the AX25-HOWTO, available from
http://www.linuxdoc.org/docs.html#howto . You also might want to
check out the file Documentation/networking/ax25.txt. More
information about digital amateur radio in general is on the WWW at
http://www.tapr.org/tapr/html/pkthome.html .
This driver is also available as a module ( = code which can be
inserted in and removed from the running kernel whenever you want).
The module will be called rose.o. If you want to compile it as a
module, say M here and read Documentation/modules.txt.
Serial port KISS driver for AX.25
CONFIG_MKISS
KISS is a protocol used for the exchange of data between a computer
and a Terminal Node Controller (a small embedded system commonly
used for networking over AX.25 amateur radio connections; it
connects the computer's serial port with the radio's microphone
input and speaker output).
Although KISS is less advanced than the 6pack protocol, it has
the advantage that it is already supported by most modern TNCs
without the need for a firmware upgrade.
If you want to compile this driver as a module ( = code which can be
inserted in and removed from the running kernel whenever you want),
say M here and read Documentation/modules.txt. The module will be
called mkiss.o.
Serial port 6PACK driver for AX.25
CONFIG_6PACK
6pack is a transmission protocol for the data exchange between your
PC and your TNC (the Terminal Node Controller acts as a kind of
modem connecting your computer's serial port to your radio's
microphone input and speaker output). This protocol can be used as
an alternative to KISS for networking over AX.25 amateur radio
connections, but it has some extended functionality.
Note that this driver is still experimental and might cause
problems. For details about the features and the usage of the
driver, read Documentation/networking/6pack.txt.
If you want to compile this driver as a module ( = code which can be
inserted in and removed from the running kernel whenever you want),
say M here and read Documentation/modules.txt. The module will be
called 6pack.o.
BPQ Ethernet driver
CONFIG_BPQETHER
AX.25 is the protocol used for computer communication over amateur
radio. If you say Y here, you will be able to send and receive AX.25
traffic over Ethernet (also called "BPQ AX.25"), which could be
useful if some other computer on your local network has a direct
amateur radio connection.
High-speed (DMA) SCC driver for AX.25
CONFIG_DMASCC
This is a driver for high-speed SCC boards, i.e. those supporting
DMA on one port. You usually use those boards to connect your
computer to an amateur radio modem (such as the WA4DSY 56kbps
modem), in order to send and receive AX.25 packet radio network
traffic.
Currently, this driver supports Ottawa PI/PI2
(http://hydra.carleton.ca/info/pi2.html ) and Gracilis PackeTwin
(http://www.paccomm.com/gracilis.html ) boards. They are detected
automatically. If you have one of these cards, say Y here and read
the AX25-HOWTO, available from
http://www.linuxdoc.org/docs.html#howto .
This driver can operate multiple boards simultaneously. If you
compile it as a module (by saying M instead of Y), it will be called
dmascc.o. If you don't pass any parameter to the driver, all
possible I/O addresses are probed. This could irritate other devices
that are currently not in use. You may specify the list of addresses
to be probed by "dmascc=addr1,addr2,..." (when compiled into the
kernel image) or "io=addr1,addr2,..." (when loaded as a module). The
network interfaces will be called dmascc0 and dmascc1 for the board
detected first, dmascc2 and dmascc3 for the second one, and so on.
Before you configure each interface with ifconfig, you MUST set
certain parameters, such as channel access timing, clock mode, and
DMA channel. This is accomplished with a small utility program,
dmascc_cfg, available at
http://www.nt.tuwien.ac.at/~kkudielk/Linux/ .
Z8530 SCC driver for AX.25
CONFIG_SCC
These cards are used to connect your Linux box to an amateur radio
in order to communicate with other computers. If you want to use
this, read Documentation/networking/z8530drv.txt and the AX25-HOWTO,
available from http://www.linuxdoc.org/docs.html#howto . Also
make sure to say Y to "Amateur Radio AX.25 Level 2" support.
If you want to compile this as a module ( = code which can be
inserted in and removed from the running kernel whenever you want),
say M here and read Documentation/modules.txt. The module will be
called scc.o.
additional delay for PA0HZP OptoSCC compatible boards
CONFIG_SCC_DELAY
Say Y here if you experience problems with the SCC driver not
working properly; please read Documentation/networking/z8530drv.txt
for details. If unsure, say N.
#support for TRX that feedback the tx signal to rx
#CONFIG_SCC_TRXECHO
###
### Don't know what's going on here.
###
#
YAM driver for AX.25
CONFIG_YAM
The YAM is a modem for packet radio which connects to the serial
port and includes some of the functions of a Terminal Node
Controller. If you have one of those, say Y here.
If you want to compile this as a module ( = code which can be
inserted in and removed from the running kernel whenever you want),
say M here and read Documentation/modules.txt.
BAYCOM picpar and par96 driver for AX.25
CONFIG_BAYCOM_PAR
This is a driver for Baycom style simple amateur radio modems that
connect to a parallel interface. The driver supports the picpar and
par96 designs. To configure the driver, use the sethdlc utility
available in the standard ax25 utilities package. For information on
the modems, see http://www.baycom.de and the file
Documentation/networking/baycom.txt.
If you want to compile this driver as a module ( = code which can be
inserted in and removed from the running kernel whenever you want),
say M here and read Documentation/modules.txt. This is recommended.
The module will be called baycom_par.o.
BAYCOM EPP driver for AX.25
CONFIG_BAYCOM_EPP
This is a driver for Baycom style simple amateur radio modems that
connect to a parallel interface. The driver supports the EPP
designs. To configure the driver, use the sethdlc utility available
in the standard ax25 utilities package. For information on the
modems, see http://www.baycom.de and the file
Documentation/networking/baycom.txt.
If you want to compile this driver as a module ( = code which can be
inserted in and removed from the running kernel whenever you want),
say M here and read Documentation/modules.txt. This is recommended.
The module will be called baycom_par.o.
BAYCOM ser12 full duplex driver for AX.25
CONFIG_BAYCOM_SER_FDX
This is one of two drivers for Baycom style simple amateur radio
modems that connect to a serial interface. The driver supports the
ser12 design in full duplex mode. In addition, it allows the
baudrate to be set between 300 and 4800 baud (however not all modems
support all baudrates). This is the preferred driver. The next
driver, "BAYCOM ser12 half duplex driver for AX.25" is the old
driver and still provided in case this driver does not work with
your serial interface chip. To configure the driver, use the sethdlc
utility available in the standard ax25 utilities package. For
information on the modems, see http://www.baycom.de and
Documentation/networking/baycom.txt.
If you want to compile this driver as a module ( = code which can be
inserted in and removed from the running kernel whenever you want),
say M here and read Documentation/modules.txt. This is recommended.
The module will be called baycom_ser_fdx.o.
BAYCOM ser12 half duplex driver for AX.25
CONFIG_BAYCOM_SER_HDX
This is one of two drivers for Baycom style simple amateur radio
modems that connect to a serial interface. The driver supports the
ser12 design in full duplex mode. This is the old driver. It is
still provided in case your serial interface chip does not work with
the full duplex driver. This driver is depreciated. To configure the
driver, use the sethdlc utility available in the standard ax25
utilities package. For information on the modems, see
http://www.baycom.de and Documentation/networking/baycom.txt.
If you want to compile this driver as a module ( = code which can be
inserted in and removed from the running kernel whenever you want),
say M here and read Documentation/modules.txt. This is recommended.
The module will be called baycom_ser_hdx.o.
Sound card modem driver for AX.25
CONFIG_SOUNDMODEM
This experimental driver allows a standard Sound Blaster or
WindowsSoundSystem compatible sound card to be used as a packet
radio modem (NOT as a telephone modem!), to send digital traffic
over amateur radio.
To configure the driver, use the sethdlc, smdiag and smmixer
utilities available in the standard ax25 utilities package. For
information on how to key the transmitter, see
http://www.ife.ee.ethz.ch/~sailer/pcf/ptt_circ/ptt.html and
Documentation/networking/soundmodem.txt.
If you want to compile this driver as a module ( = code which can be
inserted in and removed from the running kernel whenever you want),
say M here and read Documentation/modules.txt. This is recommended.
The module will be called soundmodem.o.
Sound card modem support for Sound Blaster and compatible cards
CONFIG_SOUNDMODEM_SBC
This option enables the soundmodem driver to use Sound Blaster and
compatible cards. If you have a dual mode card (i.e. a WSS cards
with a Sound Blaster emulation) you should say N here and Y to
"Sound card modem support for WSS and Crystal cards", below, because
this usually results in better performance. This option also
supports SB16/32/64 in full duplex mode.
Sound card modem support for WSS and Crystal cards
CONFIG_SOUNDMODEM_WSS
This option enables the soundmodem driver to use WindowsSoundSystem
compatible cards. These cards feature a codec chip from either
Analog Devices (such as AD1848, AD1845, AD1812) or Crystal
Semiconductors (such as CS4248, CS423x). This option also supports
the WSS full duplex operation which currently works with Crystal
CS423x chips. If you don't need full duplex operation, do not enable
it to save performance.
Sound card modem support for 1200 baud AFSK modulation
CONFIG_SOUNDMODEM_AFSK1200
This option enables the soundmodem driver 1200 baud AFSK modem,
compatible to popular modems using TCM3105 or AM7911. The
demodulator requires about 12% of the CPU power of a Pentium 75 CPU
per channel.
Sound card modem support for 2400 baud AFSK modulation (7.3728MHz crystal)
CONFIG_SOUNDMODEM_AFSK2400_7
This option enables the soundmodem driver 2400 baud AFSK modem,
compatible to TCM3105 modems (over-)clocked with a 7.3728MHz
crystal. Note that the availability of this driver does _not_ imply
that I recommend building such links. It is only here since users
especially in eastern Europe have asked me to do so. In fact this
modulation scheme has many disadvantages, mainly its incompatibility
with many transceiver designs and the fact that the TCM3105 (if
used) is operated widely outside its specifications.
Sound card modem support for 2400 baud AFSK modulation (8MHz crystal)
CONFIG_SOUNDMODEM_AFSK2400_8
This option enables the soundmodem driver 2400 baud AFSK modem,
compatible to TCM3105 modems (over-)clocked with an 8MHz crystal.
Note that the availability of this driver does _not_ imply that I
recommend building such links. It is only here since users
especially in eastern Europe have asked me to do so. In fact this
modulation scheme has many disadvantages, mainly its incompatibility
with many transceiver designs and the fact that the TCM3105 (if
used) is operated widely outside its specifications.
Sound card modem support for 2666 baud AFSK modulation
CONFIG_SOUNDMODEM_AFSK2666
This option enables the soundmodem driver 2666 baud AFSK modem.
This modem is experimental, and not compatible to anything
else I know of.
Sound card modem support for 4800 baud 8PSK modulation
CONFIG_SOUNDMODEM_PSK4800
This option enables the soundmodem driver 4800 baud 8PSK modem.
This modem is experimental, and not compatible to anything
else I know of.
Sound card modem support for 4800 baud HAPN-1 modulation
CONFIG_SOUNDMODEM_HAPN4800
This option enables the soundmodem driver 4800 baud HAPN-1
compatible modem. This modulation seems to be widely used 'down
under' and in the Netherlands. Here, nobody uses it, so I could not
test if it works. It is compatible to itself, however :-)
Sound card modem support for 9600 baud FSK G3RUH modulation
CONFIG_SOUNDMODEM_FSK9600
This option enables the soundmodem driver 9600 baud FSK modem,
compatible to the G3RUH standard. The demodulator requires about 4%
of the CPU power of a Pentium 75 CPU per channel. You can say Y to
both 1200 baud AFSK and 9600 baud FSK if you want (but obviously you
can only use one protocol at a time, depending on what the other end
can understand).
CCITT X.25 Packet Layer (EXPERIMENTAL)
CONFIG_X25
X.25 is a set of standardized network protocols, similar in scope to
frame relay; the one physical line from your box to the X.25 network
entry point can carry several logical point-to-point connections
(called "virtual circuits") to other computers connected to the X.25
network. Governments, banks, and other organizations tend to use it
to connect to each other or to form Wide Area Networks (WANs). Many
countries have public X.25 networks. X.25 consists of two
protocols: the higher level Packet Layer Protocol (PLP) (say Y here
if you want that) and the lower level data link layer protocol LAPB
(say Y to "LAPB Data Link Driver" below if you want that).
You can read more about X.25 at http://www.sangoma.com/x25.htm and
http://www.cisco.com/univercd/data/doc/software/11_0/rpcg/cx25.htm .
Information about X.25 for Linux is contained in the files
Documentation/networking/x25.txt and
Documentation/networking/x25-iface.txt.
One connects to an X.25 network either with a dedicated network card
using the X.21 protocol (not yet supported by Linux) or one can do
X.25 over a standard telephone line using an ordinary modem (say Y
to "X.25 async driver" below) or over Ethernet using an ordinary
Ethernet card and either the 802.2 LLC protocol (say Y to "802.2
LLC" below) or LAPB over Ethernet (say Y to "LAPB Data Link Driver"
and "LAPB over Ethernet driver" below).
If you want to compile this driver as a module ( = code which can be
inserted in and removed from the running kernel whenever you want),
say M here and read Documentation/modules.txt. The module will be
called x25.o. If unsure, say N.
LAPB Data Link Driver (EXPERIMENTAL)
CONFIG_LAPB
Link Access Procedure, Balanced (LAPB) is the data link layer (i.e.
the lower) part of the X.25 protocol. It offers a reliable
connection service to exchange data frames with one other host, and
it is used to transport higher level protocols (mostly X.25 Packet
Layer, the higher part of X.25, but others are possible as well).
Usually, LAPB is used with specialized X.21 network cards, but Linux
currently supports LAPB only over Ethernet connections. If you want
to use LAPB connections over Ethernet, say Y here and to "LAPB over
Ethernet driver" below. Read
Documentation/networking/lapb-module.txt for technical details.
If you want to compile this driver as a module though ( = code which
can be inserted in and removed from the running kernel whenever you
want), say M here and read Documentation/modules.txt. The module
will be called lapb.o. If unsure, say N.
802.2 LLC (EXPERIMENTAL)
CONFIG_LLC
This is a Logical Link Layer protocol used for X.25 connections over
Ethernet, using ordinary Ethernet cards.
802.1d Ethernet Bridging
CONFIG_BRIDGE
If you say Y here, then your Linux box will be able to act as an
Ethernet bridge, which means that the different Ethernet segments it
is connected to will appear as one Ethernet to the participants.
Several such bridges can work together to create even larger
networks of Ethernets using the IEEE 802.1d spanning tree protocol.
As this is a standard, Linux bridges will interwork properly with
other third party bridge products.
In order to use the ethernet bridge, you'll need the bridge
configuration tools available from ftp://openrock.net/bridge. Please
read the Bridge mini-HOWTO for more information. Note that if your
box acts as a bridge, it probably contains several Ethernet devices,
but the kernel is not able to recognize more than one at boot time
without help; for details read the Ethernet-HOWTO, available from in
http://www.linuxdoc.org/docs.html#howto .
If unsure, say N.
Packet socket
CONFIG_PACKET
The Packet protocol is used by applications which communicate
directly with network devices without an intermediate network
protocol implemented in the kernel, e.g. tcpdump. If you want them
to work, choose Y.
This driver is also available as a module called af_packet.o ( =
code which can be inserted in and removed from the running kernel
whenever you want). If you want to compile it as a module, say M
here and read Documentation/modules.txt; if you use modprobe or
kmod, you may also want to add "alias net-pf-17 af_packet" to
/etc/modules.conf.
If unsure, say Y.
Packet socket: mmapped IO
CONFIG_PACKET_MMAP
If you say Y here, the Packet protocol driver will use an IO
mechanism that results in faster communication.
If unsure, say N.
Kernel/User network link driver
CONFIG_NETLINK
This driver allows for two-way communication between the kernel and
user processes; the user processes communicate with the kernel by
reading from and writing to character special files in the /dev
directory having major mode 36.
So far, the kernel uses this feature to publish some network related
information if you say Y to "Routing messages", below. You also need
to say Y here if you want to use arpd, a daemon that helps keep the
internal ARP cache (a mapping between IP addresses and hardware
addresses on the local network) small. The ethertap device, which
lets user space programs read and write raw Ethernet frames, also
needs the network link driver.
This driver is also available as a module called netlink_dev.o ( =
code which can be inserted in and removed from the running kernel
whenever you want). If you want to compile it as a module, say M
here and read Documentation/modules.txt.
If unsure, say Y.
Routing messages
CONFIG_RTNETLINK
If you say Y here and create a character special file /dev/route
with major number 36 and minor number 0 using mknod ("man mknod"),
you (or some user space utility) can read some network related
routing information from that file. Everything you write to that
file will be discarded.
Netlink device emulation
CONFIG_NETLINK_DEV
This is a backward compatibility option, choose Y for now.
This option will be removed soon.
Asynchronous Transfer Mode (ATM)
CONFIG_ATM
ATM is a high-speed networking technology for Local Area Networks
and Wide Area Networks. It uses a fixed packet size and is
connection oriented, allowing for the negotiation of minimum
bandwidth requirements.
In order to participate in an ATM network, your Linux box needs an
ATM networking card. If you have that, say Y here and to the driver
of your ATM card below.
Note that you need a set of user-space programs to actually make use
of ATM. See the file Documentation/networking/atm.txt for further
details.
Classical IP over ATM
CONFIG_ATM_CLIP
Classical IP over ATM for PVCs and SVCs, supporting InARP and
ATMARP. Typically you will either use LAN Emulation (LANE) or
Classical IP to communicate with other IP hosts on your ATM network.
Do NOT send ICMP if no neighbor
CONFIG_ATM_CLIP_NO_ICMP
Normally, an "ICMP host unreachable" message is sent if a neighbor
cannot be reached because there is no VC to it in the kernel's
ATMARP table. This may cause problems when ATMARP table entries are
briefly removed during revalidation. If you say Y here, packets to
such neighbors are silently discarded instead.
LAN Emulation (LANE) support
CONFIG_ATM_LANE
LAN Emulation emulates services of existing LANs across an ATM
network. Besides operating as a normal ATM end station client, Linux
LANE client can also act as an proxy client bridging packets between
ELAN and Ethernet segments. You need LANE if you want to try MPOA.
Multi-Protocol Over ATM (MPOA) support
CONFIG_ATM_MPOA
Multi-Protocol Over ATM allows ATM edge devices such as routers,
bridges and ATM attached hosts establish direct ATM VCs across
subnetwork boundaries. These shortcut connections bypass routers
enhancing overall network performance.
ATM over TCP
CONFIG_ATM_TCP
ATM over TCP driver. Useful mainly for development and for
experiments. If unsure, say N.
Efficient Networks ENI155P
CONFIG_ATM_ENI
Driver for the Efficient Networks ENI155p series and SMC ATM
Power155 155 Mbps ATM adapters. Both, the versions with 512kB and
2MB on-board RAM (Efficient calls them "C" and "S", respectively),
and the FPGA and the ASIC Tonga versions of the board are supported.
The driver works with MMF (-MF or ...F) and UTP-5 (-U5 or ...D)
adapters.
Enable extended debugging
CONFIG_ATM_ENI_DEBUG
Extended debugging records various events and displays that list
when an inconsistency is detected. This mechanism is faster than
generally using printks, but still has some impact on performance.
Note that extended debugging may create certain race conditions
itself. Enable this ONLY if you suspect problems with the driver.
Fine-tune burst settings
CONFIG_ATM_ENI_TUNE_BURST
In order to obtain good throughput, the ENI NIC can transfer
multiple words of data per PCI bus access cycle. Such a multi-word
transfer is called a burst.
The default settings for the burst sizes are suitable for most PCI
chipsets. However, in some cases, large bursts may overrun buffers
in the PCI chipset and cause data corruption. In such cases, large
bursts must be disabled and only (slower) small bursts can be used.
The burst sizes can be set independently in the send (TX) and
receive (RX) direction.
Note that enabling many different burst sizes in the same direction
may increase the cost of setting up a transfer such that the
resulting throughput is lower than when using only the largest
available burst size.
Also, sometimes larger bursts lead to lower throughput, e.g. on an
Intel 440FX board, a drop from 135 Mbps to 103 Mbps was observed
when going from 8W to 16W bursts.
Enable 16W TX bursts (discouraged)
CONFIG_ATM_ENI_BURST_TX_16W
Burst sixteen words at once in the send direction. This may work
with recent PCI chipsets, but is known to fail with older chipsets.
Enable 8W TX bursts (recommended)
CONFIG_ATM_ENI_BURST_TX_8W
Burst eight words at once in the send direction. This is the default
setting.
Enable 4W TX bursts (optional)
CONFIG_ATM_ENI_BURST_TX_4W
Burst four words at once in the send direction. You may want to try
this if you have disabled 8W bursts. Enabling 4W if 8W is also set
may or may not improve throughput.
Enable 2W TX bursts (optional)
CONFIG_ATM_ENI_BURST_TX_2W
Burst two words at once in the send direction. You may want to try
this if you have disabled 4W and 8W bursts. Enabling 2W if 4W or 8W
are also set may or may not improve throughput.
Enable 16W RX bursts (discouraged)
CONFIG_ATM_ENI_BURST_RX_16W
Burst sixteen words at once in the receive direction. This may work
with recent PCI chipsets, but is known to fail with older chipsets.
Enable 8W RX bursts (discouraged)
CONFIG_ATM_ENI_BURST_RX_8W
Burst eight words at once in the receive direction. This may work
with recent PCI chipsets, but is known to fail with older chipsets,
such as the Intel Neptune series.
Enable 4W RX bursts (recommended)
CONFIG_ATM_ENI_BURST_RX_4W
Burst four words at once in the receive direction. This is the
default setting. Enabling 4W if 8W is also set may or may not
improve throughput.
Enable 2W RX bursts (optional)
CONFIG_ATM_ENI_BURST_RX_2W
Burst two words at once in the receive direction. You may want to
try this if you have disabled 4W and 8W bursts. Enabling 2W if 4W or
8W are also set may or may not improve throughput.
ZeitNet ZN1221/ZN1225
CONFIG_ATM_ZATM
Driver for the ZeitNet ZN1221 (MMF) and ZN1225 (UTP-5) 155 Mbps ATM
adapters.
Enable extended debugging
CONFIG_ATM_ZATM_DEBUG
Extended debugging records various events and displays that list
when an inconsistency is detected. This mechanism is faster than
generally using printks, but still has some impact on performance.
Note that extended debugging may create certain race conditions
itself. Enable this ONLY if you suspect problems with the driver.
Enable usec resolution timestamps
CONFIG_ATM_ZATM_EXACT_TS
The uPD98401 SAR chip supports a high-resolution timer (approx. 30
MHz) that is used for very accurate reception timestamps. Because
that timer overflows after 140 seconds, and also to avoid timer
drift, time measurements need to be periodically synchronized with
the normal system time. Enabling this feature will add some general
overhead for timer synchronization and also per-packet overhead for
time conversion.
IDT 77201/11 (NICStAR) (ForeRunnerLE)
CONFIG_ATM_NICSTAR
The NICStAR chipset family is used in a large number of ATM NICs for
25 and for 155 Mbps, including IDT cards and the Fore ForeRunnerLE
series.
ForeRunner LE155 PHYsical layer
CONFIG_ATM_NICSTAR_USE_SUNI
Support for the S-UNI and compatible PHYsical layer chips. These are
found in most 155Mbps NICStAR based ATM cards, namely in the
ForeRunner LE155 cards. This driver provides detection of cable
removal and reinsertion and provides some statistics. This driver
doesn't have removal capability when compiled as a module, so if you
need that capability don't include S-UNI support (it's not needed to
make the card work).
ForeRunner LE25 PHYsical layer
CONFIG_ATM_NICSTAR_USE_IDT77105
Support for the PHYsical layer chip in ForeRunner LE25 cards. In
addition to cable removal/reinsertion detection, this driver allows
you to control the loopback mode of the chip via a dedicated IOCTL.
This driver is required for proper handling of temporary carrier
loss, so if you have a 25Mbps NICStAR based ATM card you must say Y.
Madge Ambassador (Collage PCI 155 Server)
CONFIG_ATM_AMBASSADOR
This is a driver for ATMizer based ATM card produced by Madge
Networks Ltd. Say Y (or M to compile as a module named ambassador.o)
here if you have one of these cards.
Enable debugging messages
CONFIG_ATM_AMBASSADOR_DEBUG
Somewhat useful debugging messages are available. The choice of
messages is controlled by a bitmap. This may be specified as a
module argument (kernel command line argument as well?), changed
dynamically using an ioctl (not yet) or changed by sending the
string "Dxxxx" to VCI 1023 (where x is a hex digit). See the file
drivers/atm/ambassador.h for the meanings of the bits in the mask.
When active, these messages can have a significant impact on the
speed of the driver, and the size of your syslog files! When
inactive, they will have only a modest impact on performance.
Madge Horizon [Ultra] (Collage PCI 25 and Collage PCI 155 Client)
CONFIG_ATM_HORIZON
This is a driver for the Horizon chipset ATM adapter cards once
produced by Madge Networks Ltd. Say Y (or M to compile as a module
named horizon.o) here if you have one of these cards.
Enable debugging messages
CONFIG_ATM_HORIZON_DEBUG
Somewhat useful debugging messages are available. The choice of
messages is controlled by a bitmap. This may be specified as a
module argument (kernel command line argument as well?), changed
dynamically using an ioctl (not yet) or changed by sending the
string "Dxxxx" to VCI 1023 (where x is a hex digit). See the file
drivers/atm/horizon.h for the meanings of the bits in the mask.
When active, these messages can have a significant impact on the
speed of the driver, and the size of your syslog files! When
inactive, they will have only a modest impact on performance.
Interphase ATM PCI x575/x525/x531
CONFIG_ATM_IA
This is a driver for the Interphase (i)ChipSAR adapter cards
which include a variety of variants in term of the size of the
control memory (128K-1KVC, 512K-4KVC), the size of the packet
memory (128K, 512K, 1M), and the PHY type (Single/Multi mode OC3,
UTP155, UTP25, DS3 and E3). Go to:
www.iphase.com/products/ClassSheet.cfm?ClassID=ATM
for more info about the cards. Say Y (or M to compile as a module
named iphase.o) here if you have one of these cards.
See the file Documentation/networking/iphase.txt for further
details.
Enable debugging messages
CONFIG_ATM_IA_DEBUG
Somewhat useful debugging messages are available. The choice of
messages is controlled by a bitmap. This may be specified as a
module argument (kernel command line argument as well?), changed
dynamically using an ioctl (Get the debug utility, iadbg, from
ftp.iphase.com/pub/atm/pci). See the file drivers/atm/iphase.h
for the meanings of the bits in the mask.
When active, these messages can have a significant impact on the
speed of the driver, and the size of your syslog files! When
inactive, they will have only a modest impact on performance.
SCSI support?
CONFIG_SCSI
If you want to use a SCSI hard disk, SCSI tape drive, SCSI CDROM or
any other SCSI device under Linux, say Y and make sure that you know
the name of your SCSI host adapter (the card inside your computer
that "speaks" the SCSI protocol, also called SCSI controller),
because you will be asked for it.
You also need to say Y here if you want support for the parallel
port version of the 100 MB IOMEGA ZIP drive.
Please read the SCSI-HOWTO, available from
http://www.linuxdoc.org/docs.html#howto . The
SCSI-Programming-HOWTO contains information about how to add or
remove an SCSI device from a running Linux machine without
rebooting.
This driver is also available as a module ( = code which can be
inserted in and removed from the running kernel whenever you want).
The module will be called scsi_mod.o. If you want to compile it as a
module, say M here and read Documentation/modules.txt and
Documentation/scsi.txt. However, do not compile this as a module if
your root file systems (the one containing the directory /) is located
on a SCSI device.
SCSI disk support
CONFIG_BLK_DEV_SD
If you want to use a SCSI hard disk or the SCSI or parallel port
version of the IOMEGA ZIP drive under Linux, say Y and read the
SCSI-HOWTO, the Disk-HOWTO and the Multi-Disk-HOWTO, available from
http://www.linuxdoc.org/docs.html#howto . This is NOT for SCSI
CDROMs.
This driver is also available as a module ( = code which can be
inserted in and removed from the running kernel whenever you want).
The module will be called sd_mod.o. If you want to compile it as a
module, say M here and read Documentation/modules.txt and
Documentation/scsi.txt. Do not compile this driver as a module if
your root file systems (the one containing the directory /) is located
on a SCSI disk. In this case, do not compile the driver for your
SCSI host adapter (below) as a module either.
Extra SCSI Disks
CONFIG_SD_EXTRA_DEVS
This controls the amount of additional space allocated in tables for
drivers that are loaded as modules after the kernel is booted. In
the event that the SCSI core itself was loaded as a module, this this
value is the number of additional disks that can be loaded after the
first host driver is loaded.
Admittedly this isn't pretty, but there are tons of race conditions
involved with resizing the internal arrays on the fly. Someday this
flag will go away, and everything will work automatically.
SCSI tape support
CONFIG_CHR_DEV_ST
If you want to use a SCSI tape drive under Linux, say Y and read the
SCSI-HOWTO, available from
http://www.linuxdoc.org/docs.html#howto , and
drivers/scsi/README.st in the kernel source. This is NOT for SCSI
CDROMs.
This driver is also available as a module ( = code which can be
inserted in and removed from the running kernel whenever you want).
The module will be called st.o. If you want to compile it as a
module, say M here and read Documentation/modules.txt and
Documentation/scsi.txt .
Extra SCSI Tapes
CONFIG_ST_EXTRA_DEVS
This controls the amount of additional space allocated in tables for
drivers that are loaded as modules after the kernel is booted. In the
event that the SCSI core itself was loaded as a module, this this value
is the number of additional tape devices that can be loaded after the
first host driver is loaded.
Admittedly this isn't pretty, but there are tons of race conditions
involved with resizing the internal arrays on the fly. Someday this
flag will go away, and everything will work automatically.
SCSI CDROM support
CONFIG_BLK_DEV_SR
If you want to use a SCSI CDROM under Linux, say Y and read the
SCSI-HOWTO and the CDROM-HOWTO at
http://www.linuxdoc.org/docs.html#howto . Also make sure to say Y
or M to "ISO 9660 CDROM file systems support" later.
This driver is also available as a module ( = code which can be
inserted in and removed from the running kernel whenever you want).
The module will be called sr_mod.o. If you want to compile it as a
module, say M here and read Documentation/modules.txt and
Documentation/scsi.txt .
Extra SCSI CDROMs
CONFIG_SR_EXTRA_DEVS
This controls the amount of additional space allocated in tables for
drivers that are loaded as modules after the kernel is booted. In the
event that the SCSI core itself was loaded as a module, this this value
is the number of additional CDROMs that can be loaded after the first
host driver is loaded.
Admittedly this isn't pretty, but there are tons of race conditions
involved with resizing the internal arrays on the fly. Someday this
flag will go away, and everything will work automatically.
Enable vendor-specific extensions (for SCSI CDROM)
CONFIG_BLK_DEV_SR_VENDOR
This enables the usage of vendor specific SCSI commands. This is
required to support multisession CDs with old NEC/TOSHIBA cdrom
drives (and HP Writers). If you have such a drive and get the first
session only, try saying Y here; everybody else says N.
SCSI generic support
CONFIG_CHR_DEV_SG
If you want to use SCSI scanners, synthesizers or CD-writers or just
about anything having "SCSI" in its name other than hard disks,
CDROMs or tapes, say Y here. These won't be supported by the kernel
directly, so you need some additional software which knows how to
talk to these devices using the SCSI protocol. For CD-writers, you
would need the program cdwrite, available from
ftp://metalab.unc.edu/pub/Linux/utils/disk-management ; for other
devices, it's possible that you'll have to write the driver software
yourself, so have a look at the SCSI-HOWTO and at the
SCSI-Programming-HOWTO, both available from
http://www.linuxdoc.org/docs.html#howto . Please read the file
Documentation/scsi-generic.txt for more information.
If you want to compile this as a module ( = code which can be
inserted in and removed from the running kernel whenever you want),
say M here and read Documentation/modules.txt and
Documentation/scsi.txt. The module will be called sg.o. If unsure,
say N.
Debug new queueing code for SCSI
CONFIG_SCSI_DEBUG_QUEUES
This option turns on a lot of additional consistency checking for the new
queueing code. This will adversely affect performance, but it is likely
that bugs will be caught sooner if this is turned on. This will typically
cause the kernel to panic if an error is detected, but it would have probably
crashed if the panic weren't there. Comments/questions/problems to
linux-scsi mailing list please. See http://www.andante.org/scsi_queue.html
for more uptodate information.
Probe all LUNs on each SCSI device
CONFIG_SCSI_MULTI_LUN
If you have a SCSI device that supports more than one LUN (Logical
Unit Number), e.g. a CD jukebox, and only one LUN is detected, you
can say Y here to force the SCSI driver to probe for multiple LUNs.
A SCSI device with multiple LUNs acts logically like multiple SCSI
devices. The vast majority of SCSI devices have only one LUN, and
so most people can say N here and should in fact do so, because it
is safer.
Verbose SCSI error reporting (kernel size +=12K)
CONFIG_SCSI_CONSTANTS
The error messages regarding your SCSI hardware will be easier to
understand if you say Y here; it will enlarge your kernel by about
12 KB. If in doubt, say Y.
SCSI logging facility
CONFIG_SCSI_LOGGING
This turns on a logging facility that can be used to debug a number
of SCSI related problems.
If you say Y here, no logging output will appear by default, but you
can enable logging by saying Y to "/proc file systems support" and
"Sysctl support" below and executing the command
echo "scsi log token [level]" > /proc/scsi/scsi
at boot time after the /proc file systems has been mounted.
There are a number of things that can be used for 'token' (you can
find them in the source: drivers/scsi/scsi.c), and this allows you
to select the types of information you want, and the level allows
you to select the level of verbosity.
If you say N here, it may be harder to track down some types of SCSI
problems. If you say Y here your kernel will be somewhat larger, but
there should be no noticeable performance impact as long as you have
logging turned off.
AdvanSys SCSI support
CONFIG_SCSI_ADVANSYS
This is a driver for all SCSI host adapters manufactured by
AdvanSys. It is documented in the kernel source in
drivers/scsi/advansys.c.
This driver is also available as a module ( = code which can be
inserted in and removed from the running kernel whenever you want).
If you want to compile it as a module, say M here and read
Documentation/modules.txt. The module will be called advansys.o.
Adaptec AHA152X/2825 support
CONFIG_SCSI_AHA152X
This is a driver for the AHA-1510, AHA-1520, AHA-1522, and AHA-2825
SCSI host adapters. It also works for the AVA-1505, but the IRQ etc.
must be manually specified in this case.
It is explained in section 3.3 of the SCSI-HOWTO, available from
http://www.linuxdoc.org/docs.html#howto . You might also want to
read the comments at the top of drivers/scsi/aha152x.c.
This driver is also available as a module ( = code which can be
inserted in and removed from the running kernel whenever you want).
The module will be called aha152x.o. If you want to compile it as a
module, say M here and read Documentation/modules.txt.
Adaptec AHA1542 support
CONFIG_SCSI_AHA1542
This is support for a SCSI host adapter. It is explained in section
3.4 of the SCSI-HOWTO, available from
http://www.linuxdoc.org/docs.html#howto . Note that Trantor was
purchased by Adaptec, and some former Trantor products are being
sold under the Adaptec name. If it doesn't work out of the box, you
may have to change some settings in drivers/scsi/aha1542.h.
If you want to compile this as a module ( = code which can be
inserted in and removed from the running kernel whenever you want),
say M here and read Documentation/modules.txt. The module will be
called aha1542.o.
Adaptec AHA1740 support
CONFIG_SCSI_AHA1740
This is support for a SCSI host adapter. It is explained in section
3.5 of the SCSI-HOWTO, available from
http://www.linuxdoc.org/docs.html#howto . If it doesn't work out
of the box, you may have to change some settings in
drivers/scsi/aha1740.h.
This driver is also available as a module ( = code which can be
inserted in and removed from the running kernel whenever you want).
The module will be called aha1740.o. If you want to compile it as a
module, say M here and read Documentation/modules.txt.
Adaptec AIC7xxx chipset SCSI controller support
CONFIG_SCSI_AIC7XXX
This is support for the various aic7xxx based Adaptec SCSI
controllers. These include the 274x EISA cards; 284x VLB cards;
2902, 2910, 293x, 294x, 394x, 3985 and several other PCI and
motherboard based SCSI controllers from Adaptec. It does not support
the AAA-13x RAID controllers from Adaptec, nor will it likely ever
support them. It does not support the 2920 cards from Adaptec that
use the Future Domain SCSI controller chip. For those cards, you
need the "Future Domain 16xx SCSI support" driver.
In general, if the controller is based on an Adaptec SCSI controller
chip from the aic777x series or the aic78xx series, this driver
should work. The only exception is the 7810 which is specifically
not supported (that's the RAID controller chip on the AAA-13x
cards).
Note that the AHA2920 SCSI host adapter is *not* supported by this
driver; choose "Future Domain 16xx SCSI support" instead if you have
one of those.
Information on the configuration options for this controller can be
found by checking the help file for each of the available
configuration options. You should read drivers/scsi/README.aic7xxx
at a minimum before contacting the maintainer with any questions.
The SCSI-HOWTO, available from
http://www.linuxdoc.org/docs.html#howto , can also be of great
help.
If you want to compile this driver as a module ( = code which can be
inserted in and removed from the running kernel whenever you want),
say M here and read Documentation/modules.txt. The module will be
called aic7xxx.o.
Enable or Disable Tagged Command Queueing by default
CONFIG_AIC7XXX_TCQ_ON_BY_DEFAULT
This option causes the aic7xxx driver to attempt to use Tagged
Command Queueing (TCQ) on all devices that claim to support it.
TCQ is a feature of SCSI-2 which improves performance: the host
adapter can send several SCSI commands to a device's queue even if
previous commands haven't finished yet. Because the device is
intelligent, it can optimize its operations (like head positioning)
based on its own request queue. Not all devices implement this
correctly.
If you say Y here, you can still turn off TCQ on troublesome devices
with the use of the tag_info boot parameter. See the file
drivers/scsi/README.aic7xxx for more information on that and other
aic7xxx setup commands. If this option is turned off, you may still
enable TCQ on known good devices by use of the tag_info boot
parameter.
If you are unsure about your devices then it is safest to say N
here.
However, TCQ can increase performance on some hard drives by as much
as 50% or more, so it is recommended that if you say N here, you
should at least read the README.aic7xxx file so you will know how to
enable this option manually should your drives prove to be safe in
regards to TCQ.
Conversely, certain drives are known to lock up or cause bus resets
when TCQ is enabled on them. If you have a Western Digital
Enterprise SCSI drive for instance, then don't even bother to enable
TCQ on it as the drive will become unreliable, and it will actually
reduce performance.
Default number of TCQ commands per device
CONFIG_AIC7XXX_CMDS_PER_DEVICE
Specify the number of commands you would like to allocate per SCSI
device when Tagged Command Queueing (TCQ) is enabled on that device.
Reasonable figures are in the range of 8 to 24 commands per device,
but depending on hardware could be increased or decreased from that
figure. If the number is too high for any particular device, the
driver will automatically compensate usually after only 10 minutes
of uptime. It will not hinder performance if some of your devices
eventually have their command depth reduced, but is a waste of
memory if all of your devices end up reducing this number down to a
more reasonable figure.
NOTE: Certain very broken drives are known to lock up when given
more commands than they like to deal with. Quantum Fireball drives
are the most common in this category. For the Quantum Fireball
drives it is suggested to use no more than 8 commands per device.
Default: 8
Collect statistics to report in /proc
CONFIG_AIC7XXX_PROC_STATS
This option tells the driver to keep track of how many commands have
been sent to each particular device and report that information to
the user via the /proc/scsi/aic7xxx/n file, where n is the number of
the aic7xxx controller you want the information on. This adds a
small amount of overhead to each and every SCSI command the aic7xxx
driver handles, so if you aren't really interested in this
information, it is best to leave it disabled. This will only work if
you also say Y to "/proc file systems support", below.
If unsure, say N.
Delay in seconds after SCSI bus reset
CONFIG_AIC7XXX_RESET_DELAY
This sets how long the driver will wait after resetting the SCSI bus
before attempting to communicate with the devices on the SCSI bus
again. This delay will be used during the reset phase at bootup time
as well as after any reset that might occur during normal operation.
Reasonable numbers range anywhere from 5 to 15 seconds depending on
your devices. DAT tape drives are notorious for needing more time
after a bus reset to be ready for the next command, but most hard
drives and CD-ROM devices are ready in only a few seconds. This
option has a maximum upper limit of 20 seconds to avoid bad
interactions between the aic7xxx driver and the rest of the linux
kernel. The default value has been reduced to 5 seconds. If this
doesn't work with your hardware, try increasing this value.
IBM ServeRAID Support
CONFIG_SCSI_IPS
This is support for the IBM ServeRAID hardware RAID controllers.
Consult the SCSI-HOWTO, available via anonymous FTP from
ftp://metalab.unc.edu/pub/Linux/docs/HOWTO, and the file
README.ips in drivers/scsi for more information. If this driver
does not work correctly without modification please contact the
author by email at ipslinux@us.ibm.com.
BusLogic SCSI support
CONFIG_SCSI_BUSLOGIC
This is support for BusLogic MultiMaster and FlashPoint SCSI Host
Adapters. Consult the SCSI-HOWTO, available from
http://www.linuxdoc.org/docs.html#howto , and the files
README.BusLogic and README.FlashPoint in drivers/scsi for more
information. If this driver does not work correctly without
modification, please contact the author, Leonard N. Zubkoff, by
email to lnz@dandelion.com.
You can also build this driver as a module ( = code which can be
inserted in and removed from the running kernel whenever you want),
but only a single instance may be loaded. If you want to compile it
as a module, say M here and read Documentation/modules.txt. The
module will be called BusLogic.o.
Omit BusLogic SCSI FlashPoint support
CONFIG_SCSI_OMIT_FLASHPOINT
This option allows you to omit the FlashPoint support from the
BusLogic SCSI driver. The FlashPoint SCCB Manager code is
substantial, so users of MultiMaster Host Adapters may wish to omit
it.
DTC3180/3280 SCSI support
CONFIG_SCSI_DTC3280
This is support for DTC 3180/3280 SCSI Host Adapters. Please read
the SCSI-HOWTO, available from
http://www.linuxdoc.org/docs.html#howto , and the file
drivers/scsi/README.dtc3x80.
This driver is also available as a module ( = code which can be
inserted in and removed from the running kernel whenever you want).
The module will be called dtc.o. If you want to compile it as a
module, say M here and read Documentation/modules.txt.
EATA-DMA [Obsolete] (DPT, NEC, AT&T, SNI, AST, Olivetti, Alphatronix) support
CONFIG_SCSI_EATA_DMA
This is support for the EATA-DMA protocol compliant SCSI Host
Adapters like the SmartCache III/IV, SmartRAID controller families
and the DPT PM2011B and PM2012B controllers.
Note that this driver is obsolete; if you have one of the above SCSI
Host Adapters, you should normally say N here and Y to "EATA
ISA/EISA/PCI support", below. Please read the SCSI-HOWTO, available
from http://www.linuxdoc.org/docs.html#howto .
This driver is also available as a module ( = code which can be
inserted in and removed from the running kernel whenever you want).
The module will be called eata_dma.o. If you want to compile it as a
module, say M here and read Documentation/modules.txt.
EATA-PIO (old DPT PM2001, PM2012A) support
CONFIG_SCSI_EATA_PIO
This driver supports all EATA-PIO protocol compliant SCSI Host
Adapters like the DPT PM2001 and the PM2012A. EATA-DMA compliant
host adapters could also use this driver but are discouraged from
doing so, since this driver only supports hard disks and lacks
numerous features. You might want to have a look at the SCSI-HOWTO,
available from http://www.linuxdoc.org/docs.html#howto .
If you want to compile this as a module ( = code which can be
inserted in and removed from the running kernel whenever you want),
say M here and read Documentation/modules.txt. The module will be
called eata_pio.o.
UltraStor 14F/34F support
CONFIG_SCSI_U14_34F
This is support for the UltraStor 14F and 34F SCSI-2 host adapters.
The source at drivers/scsi/u14-34f.c contains some information about
this hardware. If the driver doesn't work out of the box, you may
have to change some settings in drivers/scsi/u14-34f.c. Read the
SCSI-HOWTO, available from
http://www.linuxdoc.org/docs.html#howto . Note that there is also
another driver for the same hardware: "UltraStor SCSI support",
below. You should say Y to both only if you want 24F support as
well.
This driver is also available as a module ( = code which can be
inserted in and removed from the running kernel whenever you want).
The module will be called u14-34f.o. If you want to compile it as a
module, say M here and read Documentation/modules.txt.
enable elevator sorting
CONFIG_SCSI_U14_34F_LINKED_COMMANDS
This option enables elevator sorting for all probed SCSI disks and
CDROMs. It definitely reduces the average seek distance when doing
random seeks, but this does not necessarily result in a noticeable
performance improvement: your mileage may vary...
The safe answer is N.
maximum number of queued commands
CONFIG_SCSI_U14_34F_MAX_TAGS
This specifies how many SCSI commands can be maximally queued for
each probed SCSI device. You should reduce the default value of 8
only if you have disks with buggy or limited tagged command support.
Minimum is 2 and maximum is 14. This value is also the window size
used by the elevator sorting option above. The effective value used
by the driver for each probed SCSI device is reported at boot time.
Future Domain 16xx SCSI/AHA-2920A support
CONFIG_SCSI_FUTURE_DOMAIN
This is support for Future Domain's 16-bit SCSI host adapters
(TMC-1660/1680, TMC-1650/1670, TMC-3260, TMC-1610M/MER/MEX) and
other adapters based on the Future Domain chipsets (Quantum
ISA-200S, ISA-250MG; Adaptec AHA-2920A; and at least one IBM board).
It is explained in section 3.7 of the SCSI-HOWTO, available from
http://www.linuxdoc.org/docs.html#howto .
NOTE: Newer Adaptec AHA-2920C boards use the Adaptec AIC-7850 chip
and should use the aic7xxx driver ("Adaptec AIC7xxx chipset SCSI
controller support"). This Future Domain driver works with the older
Adaptec AHA-2920A boards with a Future Domain chip on them.
This driver is also available as a module ( = code which can be
inserted in and removed from the running kernel whenever you want).
The module will be called fdomain.o. If you want to compile it as a
module, say M here and read Documentation/modules.txt.
Future Domain MCS-600/700 SCSI support
CONFIG_SCSI_FD_MCS
This is support for Future Domain MCS 600/700 MCA SCSI adapters.
Some PS/2 computers are equipped with IBM Fast SCSI Adapter/A which
is identical to the MCS 700 and hence also supported by this driver.
This driver also supports the Reply SB16/SCSI card (the SCSI part).
It supports multiple adapters in the same system.
This driver is also available as a module ( = code which can be
inserted in and removed from the running kernel whenever you want).
The module will be called fd_mcs.o. If you want to compile it as a
module, say M here and read Documentation/modules.txt.
Generic NCR5380/53c400 SCSI support
CONFIG_SCSI_GENERIC_NCR5380
This is the generic NCR family of SCSI controllers, not to be
confused with the NCR 53c7 or 8xx controllers. It is explained in
section 3.8 of the SCSI-HOWTO, available from
http://www.linuxdoc.org/docs.html#howto . If it doesn't work out
of the box, you may have to change some settings in
drivers/scsi/g_NCR5380.h.
This driver is also available as a module ( = code which can be
inserted in and removed from the running kernel whenever you want).
The module will be called g_NCR5380.o. If you want to compile it as
a module, say M here and read Documentation/modules.txt.
Enable NCR53c400 extensions
CONFIG_SCSI_GENERIC_NCR53C400
This enables certain optimizations for the NCR53c400 SCSI cards. You
might as well try it out. Note that this driver will only probe for
the Trantor T130B in its default configuration; you might have to
pass a command line option to the kernel at boot time if it doesn't
detect your card. See the file drivers/scsi/README.g_NCR5380 for
details.
NCR5380/53c400 mapping method (use Port for T130B)
CONFIG_SCSI_G_NCR5380_PORT
The NCR5380 and NCR53c400 SCSI controllers come in two varieties:
port or memory mapped. You should know what you have. The most
common card, Trantor T130B, uses port mapped mode.
NCR53c7,8xx SCSI support
CONFIG_SCSI_NCR53C7xx
This is a driver for the 53c7 and 8xx NCR family of SCSI
controllers, not to be confused with the NCR 5380 controllers. It is
explained in section 3.8 of the SCSI-HOWTO, available from
http://www.linuxdoc.org/docs.html#howto . If it doesn't work out
of the box, you may have to change some settings in
drivers/scsi/53c7,8xx.h. Please read drivers/scsi/README.ncr53c7xx
for the available boot time command line options.
Note: there is another driver for the 53c8xx family of controllers
("NCR53C8XX SCSI support" below). If you want to use them both, you
need to say M to both and build them as modules, but only one may be
active at a time. If you have a 53c8xx board, it's better to use the
other driver.
This driver is also available as a module ( = code which can be
inserted in and removed from the running kernel whenever you want).
The module will be called 53c7,8xx.o. If you want to compile it as a
module, say M here and read Documentation/modules.txt.
always negotiate synchronous transfers
CONFIG_SCSI_NCR53C7xx_sync
In general, this is good; however, it is a bit dangerous since there
are some broken SCSI devices out there. Take your chances. Safe bet
is N.
allow FAST-SCSI [10MHz]
CONFIG_SCSI_NCR53C7xx_FAST
This will enable 10MHz FAST-SCSI transfers with your host
adapter. Some systems have problems with that speed, so it's safest
to say N here.
allow DISCONNECT
CONFIG_SCSI_NCR53C7xx_DISCONNECT
This enables the disconnect/reconnect feature of the NCR SCSI
controller. When you say Y here, a slow SCSI device will not lock
the SCSI bus while processing a request, allowing simultaneous use
of e.g. a SCSI hard disk and SCSI tape or CD-ROM drive, and
providing much better performance when using slow and fast SCSI
devices at the same time. Some devices, however, do not operate
properly with this option enabled, and will cause your SCSI system
to hang, which might cause a system crash. The safe answer
therefore is to say N.
NCR53C8XX SCSI support
CONFIG_SCSI_NCR53C8XX
This is the BSD ncr driver adapted to Linux for the NCR53C8XX family
of PCI-SCSI controllers. This driver supports parity checking,
tagged command queuing and fast synchronous data transfers up to 80
MB/s with wide FAST-40 LVD devices and controllers.
Recent versions of the 53C8XX chips are better supported by the
option "SYM53C8XX SCSI support", below.
Note: there is yet another driver for the 53c8xx family of
controllers ("NCR53c7,8xx SCSI support" above). If you want to use
them both, you need to say M to both and build them as modules, but
only one may be active at a time. If you have a 53c8xx board, you
probably do not want to use the "NCR53c7,8xx SCSI support".
Please read drivers/scsi/README.ncr53c8xx for more information.
SYM53C8XX SCSI support
CONFIG_SCSI_SYM53C8XX
This driver supports all the features of recent 53C8XX chips (used
in PCI SCSI controllers), notably the hardware phase mismatch
feature of the SYM53C896.
Older versions of the 53C8XX chips are not supported by this
driver. If your system uses either a 810 rev. < 16, a 815, or a 825
rev. < 16 PCI SCSI processor, you must use the generic NCR53C8XX
driver ("NCR53C8XX SCSI support" above) or configure both the
NCR53C8XX and this SYM53C8XX drivers either as module or linked to
the kernel image.
When both drivers are linked into the kernel, the SYM53C8XX driver
is called first at initialization and you can use the 'excl=ioaddr'
driver boot option to exclude attachment of adapters by the
SYM53C8XX driver. For example, entering
'sym53c8xx=excl:0xb400,excl=0xc000' at the lilo prompt prevents
adapters at io address 0xb400 and 0xc000 from being attached by the
SYM53C8XX driver, thus allowing the NCR53C8XX driver to attach them.
The 'excl' option is also supported by the NCR53C8XX driver.
Please read drivers/scsi/README.ncr53c8xx for more information.
synchronous data transfers frequency
CONFIG_SCSI_NCR53C8XX_SYNC
The SCSI Parallel Interface-2 Standard defines 4 classes of transfer
rates: FAST-5, FAST-10, FAST-20 and FAST-40. The numbers are
respectively the maximum data transfer rates in mega-transfers per
second for each class. For example, a FAST-20 Wide 16 device is able
to transfer data at 20 million 16 bit packets per second for a total
rate of 40 MB/s.
You may specify 0 if you want to only use asynchronous data
transfers. This is the safest and slowest option. Otherwise, specify
a value between 5 and 40, depending on the capability of your SCSI
controller. The higher the number, the faster the data transfer.
Note that 40 should normally be ok since the driver decreases the
value automatically according to the controller's capabilities.
Your answer to this question is ignored for controllers with NVRAM,
since the driver will get this information from the user set-up. It
also can be overridden using a boot setup option, as follows
(example): 'ncr53c8xx=sync:12' will allow the driver to negotiate
for FAST-20 synchronous data transfer (20 mega-transfers per
second).
The normal answer therefore is not to go with the default but to
select the maximum value 40 allowing the driver to use the maximum
value supported by each controller. If this causes problems with
your SCSI devices, you should come back and decrease the value.
There is no safe option other than using good cabling, right
terminations and SCSI conformant devices.
use normal IO
CONFIG_SCSI_NCR53C8XX_IOMAPPED
If you say Y here, the driver will use normal IO, as opposed to
memory mapped IO. Memory mapped IO has less latency than normal IO
and works for most Intel-based hardware. Under Linux/Alpha only
normal IO is currently supported by the driver and so, this option
has no effect on those systems.
The normal answer therefore is N; try Y only if you encounter SCSI
related problems.
not allow targets to disconnect
CONFIG_SCSI_NCR53C8XX_NO_DISCONNECT
This option is only provided for safety if you suspect some SCSI
device of yours to not support properly the target-disconnect
feature. In that case, you would say Y here. In general however, to
not allow targets to disconnect is not reasonable if there is more
than 1 device on a SCSI bus. The normal answer therefore is N.
default tagged command queue depth
CONFIG_SCSI_NCR53C8XX_DEFAULT_TAGS
"Tagged command queuing" is a feature of SCSI-2 which improves
performance: the host adapter can send several SCSI commands to a
device's queue even if previous commands haven't finished yet.
Because the device is intelligent, it can optimize its operations
(like head positioning) based on its own request queue. Some SCSI
devices don't implement this properly; if you want to disable this
feature, enter 0 or 1 here (it doesn't matter which).
The default value is 8 and should be supported by most hard disks.
This value can be overridden from the boot command line using the
'tags' option as follows (example):
'ncr53c8xx=tags:4/t2t3q16/t0u2q10' will set default queue depth to
4, set queue depth to 16 for target 2 and target 3 on controller 0
and set queue depth to 10 for target 0 / lun 2 on controller 1.
The normal answer therefore is to go with the default 8 and to use
a boot command line option for devices that need to use a different
command queue depth.
There is no safe option other than using good SCSI devices.
maximum number of queued commands
CONFIG_SCSI_NCR53C8XX_MAX_TAGS
This option allows you to specify the maximum number of commands
that can be queued to any device, when tagged command queuing is
possible. The default value is 32. Minimum is 2, maximum is 64.
Modern hard disks are able to support 64 tags and even more, but
do not seem to be faster when more than 32 tags are being used.
So, the normal answer here is to go with the default value 32 unless
you are using very large hard disks with large cache (>= 1 MB) that
are able to take advantage of more than 32 tagged commands.
There is no safe option and the default answer is recommended.
assume boards are SYMBIOS compatible (EXPERIMENTAL)
CONFIG_SCSI_NCR53C8XX_SYMBIOS_COMPAT
This option allows you to enable some features depending on GPIO
wiring. These General Purpose Input/Output pins can be used for
vendor specific features or implementation of the standard SYMBIOS
features. Genuine SYMBIOS controllers use GPIO0 in output for
controller LED and GPIO3 bit as a flag indicating
singled-ended/differential interface. The Tekram DC-390U/F boards
uses a different GPIO wiring.
Your answer to this question is ignored if all your controllers have
NVRAM, since the driver is able to detect the board type from the
NVRAM format.
If all the controllers in your system are genuine SYMBIOS boards or
use BIOS and drivers from SYMBIOS, you would want to say Y here,
otherwise N. N is the safe answer.
enable profiling statistics gathering
CONFIG_SCSI_NCR53C8XX_PROFILE
This option allows you to enable profiling information gathering.
These statistics are not very accurate due to the low frequency
of the kernel clock (100 Hz on i386) and have performance impact
on systems that use very fast devices.
The normal answer therefore is N.
include support for the NCR PQS/PDS SCSI card
CONFIG_SCSI_NCR53C8XX_PQS_PDS
Say Y here if you have a special SCSI adapter produced by NCR
corporation called a PCI Quad SCSI or PCI Dual SCSI. You do not need
this if you do not have one of these adapters. However, since this
device is detected as a specific PCI device, this option is quite
safe.
The common answer here is N, but answering Y is safe.
IBMMCA SCSI support
CONFIG_SCSI_IBMMCA
This is support for the IBM SCSI adapter found in many of the PS/2
series computers. These machines have an MCA bus, so you need to
answer Y to "MCA support" as well and read Documentation/mca.txt.
If the adapter isn't found during boot (a common problem for models
56, 57, 76, and 77) you'll need to use the 'ibmmcascsi=<pun>' kernel
option, where <pun> is the id of the SCSI subsystem (usually 7, but
if that doesn't work check your reference diskette). Owners of model
95 with a LED-matrix-display can in addition activate some activity
info like under OS/2, but more informative, by setting
'ibmmcascsi=display' as an additional kernel parameter. Try "man
bootparam" or see the documentation of your boot loader about how to
pass options to the kernel. The lilo procedure is also explained in
the SCSI-HOWTO, available from
http://www.linuxdoc.org/docs.html#howto .
If you want to compile this driver as a module ( = code which can be
inserted in and removed from the running kernel whenever you want),
say M here and read Documentation/modules.txt. The module will be
called ibmmca.o.
Standard SCSI-order
CONFIG_IBMMCA_SCSI_ORDER_STANDARD
In the PC-world and in most modern SCSI-BIOS-setups, SCSI-hard disks
are assigned to the drive letters, starting with the lowest SCSI-id
(physical number -- pun) to be drive C:, as seen from DOS and
similar operating systems. When looking into papers describing the
ANSI-SCSI-standard, this assignment of drives appears to be wrong.
The SCSI-standard follows a hardware-hierarchy which says that id 7
has the highest priority and id 0 the lowest. Therefore, the host
adapters are still today everywhere placed as SCSI-id 7 by default.
In the SCSI-standard, the drive letters express the priority of the
disk. C: should be the hard disk, or a partition on it, with the
highest priority. This must therefore be the disk with the highest
SCSI-id (e.g. 6) and not the one with the lowest! IBM-BIOS kept the
original definition of the SCSI-standard as also industrial- and
process-control-machines, like VME-CPUs running under realtime-OSs
(e.g. LynxOS, OS9) do.
If you like to run Linux on your MCA-machine with the same
assignment of hard disks as seen from e.g. DOS or OS/2 on your
machine, which is in addition conformant to the SCSI-standard, you
must say Y here. This is also necessary for MCA-Linux users who want
to keep downward compatibility to older releases of the
IBM-MCA-SCSI-driver (older than driver-release 2.00 and older than
June 1997).
If you like to have the lowest SCSI-id assigned as drive C:, as
modern SCSI-BIOSes do, which does not conform to the standard, but
is widespread and common in the PC-world of today, you must say N
here. If unsure, say Y.
Reset SCSI-devices at boot time
CONFIG_IBMMCA_SCSI_DEV_RESET
By default, SCSI-devices are reset when the machine is powered on.
However, some devices exist, like special-control-devices,
SCSI-CNC-machines, SCSI-printer or scanners of older type, that do
not reset when switched on. If you say Y here, each device connected
to your SCSI-bus will be issued a reset-command after it has been
probed, while the kernel is booting. This may cause problems with
more modern devices, like hard disks, which do not appreciate these
reset commands, and can cause your system to hang. So say Y only if
you know that one of your older devices needs it; N is the safe
answer.
NCR 53C9x MCA support
CONFIG_SCSI_MCA_53C9X
Some Microchannel machines, notably the NCR 35xx line, use a SCSI
controller based on the NCR 53C94. This driver will allow use of
the controller on the 3550, and very possibly others.
If you want to compile this as a module (= code which can be
inserted and removed from the running kernel whenever you want), say
M here and read Documentation/modules.txt. The module will be called
mca_53c9x.o.
Always IN2000 SCSI support
CONFIG_SCSI_IN2000
This is support for an ISA bus SCSI host adapter. You'll find more
information in drivers/scsi/in2000.readme. If it doesn't work out of
the box, you may have to change the jumpers for IRQ or address
selection.
If you want to compile this as a module ( = code which can be
inserted in and removed from the running kernel whenever you want),
say M here and read Documentation/modules.txt. The module will be
called in2000.o.
Initio 91XXU(W) SCSI support
CONFIG_SCSI_INITIO
This is support for the Initio 91XXU(W) SCSI host adapter. Please
read the SCSI-HOWTO, available from
http://www.linuxdoc.org/docs.html#howto .
If you want to compile this as a module ( = code which can be
inserted in and removed from the running kernel whenever you want),
say M here and read Documentation/modules.txt. The module will be
called initio.o
PAS16 SCSI support
CONFIG_SCSI_PAS16
This is support for a SCSI host adapter. It is explained in section
3.10 of the SCSI-HOWTO, available from
http://www.linuxdoc.org/docs.html#howto . If it doesn't work out
of the box, you may have to change some settings in
drivers/scsi/pas16.h.
This driver is also available as a module ( = code which can be
inserted in and removed from the running kernel whenever you want).
The module will be called pas16.o. If you want to compile it as a
module, say M here and read Documentation/modules.txt.
Initio INI-A100U2W SCSI support
CONFIG_SCSI_INIA100
This is support for the Initio INI-A100U2W SCSI host adapter. Please
read the SCSI-HOWTO, available from
http://www.linuxdoc.org/docs.html#howto .
If you want to compile this as a module ( = code which can be
inserted in and removed from the running kernel whenever you want),
say M here and read Documentation/modules.txt. The module will be
called a100u2w.o
PCI2000 support
CONFIG_SCSI_PCI2000
This is support for the PCI2000I EIDE interface card which acts as a
SCSI host adapter. Please read the SCSI-HOWTO, available from
http://www.linuxdoc.org/docs.html#howto .
This driver is also available as a module called pci2000.o ( = code
which can be inserted in and removed from the running kernel
whenever you want). If you want to compile it as a module, say M
here and read Documentation/modules.txt.
PCI2220i support
CONFIG_SCSI_PCI2220I
This is support for the PCI2220i EIDE interface card which acts as a
SCSI host adapter. Please read the SCSI-HOWTO, available from
http://www.linuxdoc.org/docs.html#howto .
This driver is also available as a module called pci2220i.o ( = code
which can be inserted in and removed from the running kernel
whenever you want). If you want to compile it as a module, say M
here and read Documentation/modules.txt.
PSI240i support
CONFIG_SCSI_PSI240I
This is support for the PSI240i EIDE interface card which acts as a
SCSI host adapter. Please read the SCSI-HOWTO, available from
http://www.linuxdoc.org/docs.html#howto .
This driver is also available as a module called psi240i.o ( = code
which can be inserted in and removed from the running kernel
whenever you want). If you want to compile it as a module, say M
here and read Documentation/modules.txt.
Qlogic FAS SCSI support
CONFIG_SCSI_QLOGIC_FAS
This is a driver for the ISA, VLB, and PCMCIA versions of the Qlogic
FastSCSI! cards as well as any other card based on the FASXX chip
(including the Control Concepts SCSI/IDE/SIO/PIO/FDC cards).
This driver does NOT support the PCI versions of these cards. The
PCI versions are supported by the Qlogic ISP driver ("Qlogic ISP
SCSI support"), below.
Information about this driver is contained in
drivers/scsi/README.qlogicfas. You should also read the SCSI-HOWTO,
available from http://www.linuxdoc.org/docs.html#howto .
This driver is also available as a module ( = code which can be
inserted in and removed from the running kernel whenever you want).
The module will be called qlogicfas.o. If you want to compile it as
a module, say M here and read Documentation/modules.txt.
Qlogic ISP SCSI support (EXPERIMENTAL)
CONFIG_SCSI_QLOGIC_ISP
This driver works for all QLogic PCI SCSI host adapters (IQ-PCI,
IQ-PCI-10, IQ_PCI-D) except for the PCI-basic card. (This latter
card is supported by the "AM53/79C974 PCI SCSI" driver).
If you say Y here, make sure to choose "BIOS" at the question "PCI
access mode".
Please read the file drivers/scsi/README.qlogicisp. You should also
read the SCSI-HOWTO, available from
http://www.linuxdoc.org/docs.html#howto .
This driver is also available as a module ( = code which can be
inserted in and removed from the running kernel whenever you want).
The module will be called qlogicisp.o. If you want to compile it as
a module, say M here and read Documentation/modules.txt.
Qlogic ISP FC SCSI support
CONFIG_SCSI_QLOGIC_FC
This is a driver for the QLogic ISP2100 SCSI-FCP host adapter.
This driver is also available as a module ( = code which can be
inserted in and removed from the running kernel whenever you want).
The module will be called qlogicfc.o. If you want to compile it as
a module, say M here and read Documentation/modules.txt.
Seagate ST-02 and Future Domain TMC-8xx SCSI support
CONFIG_SCSI_SEAGATE
These are 8-bit SCSI controllers; the ST-01 is also supported by
this driver. It is explained in section 3.9 of the SCSI-HOWTO,
available from http://www.linuxdoc.org/docs.html#howto . If it
doesn't work out of the box, you may have to change some settings in
drivers/scsi/seagate.h.
This driver is also available as a module ( = code which can be
inserted in and removed from the running kernel whenever you want).
The module will be called seagate.o. If you want to compile it as a
module, say M here and read Documentation/modules.txt.
Trantor T128/T128F/T228 SCSI support
CONFIG_SCSI_T128
This is support for a SCSI host adapter. It is explained in section
3.11 of the SCSI-HOWTO, available from
http://www.linuxdoc.org/docs.html#howto . If it doesn't work out
of the box, you may have to change some settings in
drivers/scsi/t128.h. Note that Trantor was purchased by Adaptec, and
some former Trantor products are being sold under the Adaptec name.
This driver is also available as a module ( = code which can be
inserted in and removed from the running kernel whenever you want).
The module will be called t128.o. If you want to compile it as a
module, say M here and read Documentation/modules.txt.
UltraStor SCSI support
CONFIG_SCSI_ULTRASTOR
This is support for the UltraStor 14F, 24F and 34F SCSI-2 host
adapter family. This driver is explained in section 3.12 of the
SCSI-HOWTO, available from
http://www.linuxdoc.org/docs.html#howto . If it doesn't work out
of the box, you may have to change some settings in
drivers/scsi/ultrastor.h.
Note that there is also another driver for the same hardware:
"UltraStor 14F/34F support", above.
If you want to compile this as a module ( = code which can be
inserted in and removed from the running kernel whenever you want),
say M here and read Documentation/modules.txt. The module will be
called ultrastor.o.
7000FASST SCSI support
CONFIG_SCSI_7000FASST
This driver supports the Western Digital 7000 SCSI host adapter
family. Some information is in the source: drivers/scsi/wd7000.c.
This driver is also available as a module ( = code which can be
inserted in and removed from the running kernel whenever you
want). The module will be called wd7000.o. If you want to compile it
as a module, say M here and read Documentation/modules.txt.
ACARD SCSI support
CONFIG_SCSI_ACARD
This driver supports the ACARD 870U/W SCSI host adapter.
This driver is also available as a module ( = code which can be
inserted in and removed from the running kernel whenever you want).
The module will be called atp870u.o. If you want to compile it as a
module, say M here and read Documentation/modules.txt.
EATA ISA/EISA/PCI (DPT and generic EATA/DMA-compliant boards) support
CONFIG_SCSI_EATA
This driver supports all EATA/DMA-compliant SCSI host adapters. DPT
ISA and all EISA i/o addresses are probed looking for the "EATA"
signature. If you chose "BIOS" at the question "PCI access mode",
the addresses of all the PCI SCSI controllers reported by the PCI
subsystem are probed as well.
You want to read the start of drivers/scsi/eata.c and the
SCSI-HOWTO, available from
http://www.linuxdoc.org/docs.html#howto .
Note that there is also another driver for the same hardware
available: "EATA-DMA support". You should say Y to only one of them.
If you want to compile this as a module ( = code which can be
inserted in and removed from the running kernel whenever you want),
say M here and read Documentation/modules.txt. The module will be
called eata.o.
enable tagged command queuing
CONFIG_SCSI_EATA_TAGGED_QUEUE
This is a feature of SCSI-2 which improves performance: the host
adapter can send several SCSI commands to a device's queue even if
previous commands haven't finished yet. Most EATA adapters negotiate
this feature automatically with the device, even if your answer is
N. The safe answer is N.
enable elevator sorting
CONFIG_SCSI_EATA_LINKED_COMMANDS
This option enables elevator sorting for all probed SCSI disks and
CDROMs. It definitely reduces the average seek distance when doing
random seeks, but this does not necessarily result in a noticeable
performance improvement: your mileage may vary...
The safe answer is N.
maximum number of queued commands
CONFIG_SCSI_EATA_MAX_TAGS
This specifies how many SCSI commands can be maximally queued for
each probed SCSI device. You should reduce the default value of 16
only if you have disks with buggy or limited tagged command support.
Minimum is 2 and maximum is 62. This value is also the window size
used by the elevator sorting option above. The effective value used
by the driver for each probed SCSI device is reported at boot time.
NCR53c406a SCSI support
CONFIG_SCSI_NCR53C406A
This is support for the NCR53c406a SCSI host adapter. For user
configurable parameters, check out drivers/scsi/NCR53c406.c in the
kernel source. Also read the SCSI-HOWTO, available from
http://www.linuxdoc.org/docs.html#howto .
If you want to compile this driver as a module ( = code which can be
inserted in and removed from the running kernel whenever you want),
say M here and read Documentation/modules.txt. The module will be
called NCR53c406.o.
Symbios Logic sym53c416 support
CONFIG_SCSI_SYM53C416
This is support for the sym53c416 SCSI host adapter, the SCSI
adapter that comes with some HP scanners. This driver requires that
the sym53c416 is configured first using some sort of pnp
configuration program (e.g. isapnp) or by a PnP aware BIOS. If you
are using isapnp then you need to compile this driver as a module
and then load it using insmod after isapnp has run. The parameters
of the configured card(s) should be passed to the driver. The format
is:
insmod sym53c416 sym53c416=<base>,<irq> [sym53c416_1=<base>,<irq>]
There is support for up to four adapters. If you want to compile
this driver as a module ( = code which can be inserted in and
removed from the running kernel whenever you want), say M here and
read Documentation/modules.txt. The module will be called
sym53c416.o.
Tekram DC390(T) and Am53/79C974 (PCscsi) SCSI support
CONFIG_SCSI_DC390T
This driver supports PCI SCSI host adapters based on the Am53C974A
chip, e.g. Tekram DC390(T), DawiControl 2974 and some onboard
PCscsi/PCnet (Am53/79C974) solutions.
Documentation can be found in linux/drivers/scsi/README.tmscsim.
Note that this driver does NOT support Tekram DC390W/U/F, which are
based on NCR/Symbios chips. Use "NCR53C8XX SCSI support" for those.
Also note that there is another generic Am53C974 driver,
"AM53/79C974 PCI SCSI support" below. You can pick either one.
If you want to compile this driver as a module ( = code which can be
inserted in and removed from the running kernel whenever you want),
say M here and read Documentation/modules.txt. The module will be
called tmscsim.o.
Omit support for other Am53/79C974 based SCSI adapters
CONFIG_SCSI_DC390T_NOGENSUPP
If you say N here, the DC390(T) SCSI driver relies on the DC390
EEPROM to get initial values for its settings, such as speed,
termination, etc. If it can't find this EEPROM, it will use defaults
or the user supplied boot/module parameters. For details on driver
configuration see linux/drivers/scsi/README.tmscsim.
If you say Y here and if no EEPROM is found, the driver gives up and
thus only supports Tekram DC390(T) adapters. This can be useful if
you have a DC390(T) and another Am53C974 based adapter, which, for
some reason, you want to drive with the other AM53C974 driver.
If unsure, say N.
AM53/79C974 PCI SCSI support
CONFIG_SCSI_AM53C974
This is support for the AM53/79C974 SCSI host adapters. Please read
drivers/scsi/README.AM53C974 for details. Also, the SCSI-HOWTO,
available from http://www.linuxdoc.org/docs.html#howto , is for
you.
Note that there is another driver for AM53C974 based adapters:
"Tekram DC390(T) and Am53/79C974 (PCscsi) SCSI support", above. You
can pick either one.
If you want to compile this driver as a module ( = code which can be
inserted in and removed from the running kernel whenever you want),
say M here and read Documentation/modules.txt. The module will be
called AM53C974.o.
AMI MegaRAID support
CONFIG_SCSI_MEGARAID
This driver supports the AMI MegaRAID 418, 428, 438, 466, 762, 490
and 467 SCSI host adapters.
If you want to compile this driver as a module ( = code which can be
inserted in and removed from the running kernel whenever you want),
say M here and read Documentation/modules.txt. The module will be
called megaraid.o.
GDT SCSI Disk Array Controller support
CONFIG_SCSI_GDTH
This is a driver for all SCSI Disk Array Controllers (EISA/ISA/PCI)
manufactured by ICP vortex. It is documented in the kernel source in
drivers/scsi/gdth.c and drivers/scsi/gdth.h.
This driver is also available as a module ( = code which can be
inserted in and removed from the running kernel whenever you want).
If you want to compile it as a module, say M here and read
Documentation/modules.txt.
IOMEGA parallel port (ppa - older drives)
CONFIG_SCSI_PPA
This driver supports older versions of IOMEGA's parallel port ZIP
drive (a 100 MB removable media device).
Note that you can say N here if you have the SCSI version of the ZIP
drive: it will be supported automatically if you said Y to the
generic "SCSI disk support", above.
If you have the ZIP Plus drive or a more recent parallel port ZIP
drive (if the supplied cable with the drive is labeled "AutoDetect")
then you should say N here and Y to "IOMEGA parallel port (imm -
newer drives)", below.
For more information about this driver and how to use it you should
read the file drivers/scsi/README.ppa. You should also read the
SCSI-HOWTO, which is available from
http://www.linuxdoc.org/docs.html#howto . If you use this driver,
you will still be able to use the parallel port for other tasks,
such as a printer; it is safe to compile both drivers into the
kernel.
This driver is also available as a module which can be inserted in
and removed from the running kernel whenever you want. To compile
this driver as a module, say M here and read
Documentation/modules.txt. The module will be called ppa.o.
IOMEGA parallel port (imm - newer drives)
CONFIG_SCSI_IMM
This driver supports newer versions of IOMEGA's parallel port ZIP
drive (a 100 MB removable media device).
Note that you can say N here if you have the SCSI version of the ZIP
drive: it will be supported automatically if you said Y to the
generic "SCSI disk support", above.
If you have the ZIP Plus drive or a more recent parallel port ZIP
drive (if the supplied cable with the drive is labeled "AutoDetect")
then you should say Y here; if you have an older ZIP drive, say N
here and Y to "IOMEGA Parallel Port (ppa - older drives)", above.
For more information about this driver and how to use it you should
read the file drivers/scsi/README.ppa. You should also read the
SCSI-HOWTO, which is available from
http://www.linuxdoc.org/docs.html#howto . If you use this driver,
you will still be able to use the parallel port for other tasks,
such as a printer; it is safe to compile both drivers into the
kernel.
This driver is also available as a module which can be inserted in
and removed from the running kernel whenever you want. To compile
this driver as a module, say M here and read
Documentation/modules.txt. The module will be called imm.o.
Force the Iomega ZIP drivers to use EPP-16
CONFIG_SCSI_IZIP_EPP16
EPP (Enhanced Parallel Port) is a standard for parallel ports which
allows them to act as expansion buses that can handle up to 64
peripheral devices.
Some parallel port chipsets are slower than their motherboard, and
so we have to control the state of the chipset's FIFO queue every
now and then to avoid data loss. This will be done if you say Y
here.
Generally, saying Y is the safe option and slows things down a bit.
Assume slow parallel port control register
CONFIG_SCSI_IZIP_SLOW_CTR
Some parallel ports are known to have excessive delays between
changing the parallel port control register and good data being
available on the parallel port data/status register. This option
forces a small delay (1.0 usec to be exact) after changing the
control register to let things settle out. Enabling this option may
result in a big drop in performance but some very old parallel ports
(found in 386 vintage machines) will not work properly.
Generally, saying N is fine.
SCSI Debug host simulator. (EXPERIMENTAL)
CONFIG_SCSI_DEBUG
This is a host adapter simulator that can be programmed to simulate
a large number of conditions that could occur on a real bus. The
advantage is that many hard to reproduce problems can be tested in a
controlled environment where there is reduced risk of losing
important data. This is primarily of use to people trying to debug
the middle and upper layers of the SCSI subsystem. If unsure, say N.
Fibre Channel support
CONFIG_FC4
This is an experimental support for storage arrays connected to
the system using Fibre Optic and the "X3.269-199X Fibre Channel
Protocol for SCSI" specification. You'll also need the generic SCSI
support, as well as the drivers for the storage array itself and
for the interface adapter such as SOC. This subsystem could even
serve for IP networking, with some code extensions.
If unsure, say N.
Sun SOC
CONFIG_FC4_SOC
Serial Optical Channel is an interface card with one or two Fibre
Optic ports, each of which can be connected to a disk array. Only
the SBus incarnation of the adapter is supported at the moment.
SparcSTORAGE Array 100 and 200 series
CONFIG_SCSI_PLUTO
If you never bought a disk array made by Sun, go with N.
AcornSCSI support
CONFIG_SCSI_ACORNSCSI_3
This enables support for the Acorn SCSI card (aka30). If you have an
Acorn system with one of these, say Y. If unsure, say N.
Acorn SCSI tagged queue support
CONFIG_SCSI_ACORNSCSI_TAGGED_QUEUE
Say Y here to enable tagged queuing support on the Acorn SCSI card.
This is a feature of SCSI-2 which improves performance: the host
adapter can send several SCSI commands to a device's queue even if
previous commands haven't finished yet. Some SCSI devices don't
implement this properly, so the safe answer is N.
Acorn SCSI Synchronous transfers support
CONFIG_SCSI_ACORNSCSI_SYNC
Say Y here to enable synchronous transfer negotiation with all
targets on the Acorn SCSI card.
In general, this improves performance; however some SCSI devices
don't implement it properly, so the safe answer is N.
Oak SCSI support
CONFIG_SCSI_OAK1
This enables support for the Oak SCSI card. If you have an Acorn
system with one of these, say Y. If unsure, say N.
Cumana SCSI I support
CONFIG_SCSI_CUMANA_1
This enables support for the Cumana SCSI I card. If you have an
Acorn system with one of these, say Y. If unsure, say N.
Cumana SCSI II support (EXPERIMENTAL)
CONFIG_SCSI_CUMANA_2
This enables support for the Cumana SCSI II card. If you have an
Acorn system with one of these, say Y. If unsure, say N.
EcoSCSI support
CONFIG_SCSI_ECOSCSI
This enables support for the EcoSCSI card -- a small card that sits
in the Econet socket. If you have an Acorn system with one of these,
say Y. If unsure, say N.
EESOX SCSI support (EXPERIMENTAL)
CONFIG_SCSI_EESOXSCSI
This enables support for the EESOX SCSI card. If you have an Acorn
system with one of these, say Y, otherwise say N.
Powertec SCSI support (EXPERIMENTAL)
CONFIG_SCSI_POWERTECSCSI
This enables support for the Powertec SCSI card on Acorn systems. If
you have one of these, say Y. If unsure, say N.
Network device support?
CONFIG_NETDEVICES
You can say N here if you don't intend to connect your Linux box to
any other computer at all or if all your connections will be over a
telephone line with a modem either via UUCP (UUCP is a protocol to
forward mail and news between unix hosts over telephone lines; read
the UUCP-HOWTO, available from
http://www.linuxdoc.org/docs.html#howto ) or dialing up a shell
account or a BBS, even using term (term is a program which gives you
almost full Internet connectivity if you have a regular dial up
shell account on some Internet connected Unix computer. Read
http://www.bart.nl/~patrickr/term-howto/Term-HOWTO.html ).
You'll have to say Y if your computer contains a network card that
you want to use under Linux (make sure you know its name because you
will be asked for it and read the Ethernet-HOWTO (especially if you
plan to use more than one network card under Linux)) or if you want
to use SLIP (Serial Line Internet Protocol is the protocol used to
send Internet traffic over telephone lines or null modem cables) or
CSLIP (compressed SLIP) or PPP (Point to Point Protocol, a better
and newer replacement for SLIP) or PLIP (Parallel Line Internet
Protocol is mainly used to create a mini network by connecting the
parallel ports of two local machines) or AX.25/KISS (protocol for
sending Internet traffic over amateur radio links).
Make sure to read the NET-3-HOWTO. Eventually, you will have to read
Olaf Kirch's excellent and free book "Network Administrator's
Guide", to be found in ftp://metalab.unc.edu/pub/Linux/docs/LDP . If
unsure, say Y.
Dummy net driver support
CONFIG_DUMMY
This is essentially a bit-bucket device (i.e. traffic you send to
this device is consigned into oblivion) with a configurable IP
address. It is most commonly used in order to make your currently
inactive SLIP address seem like a real address for local programs.
If you use SLIP or PPP, you might want to say Y here. Since this
thing often comes in handy, the default is Y. It won't enlarge your
kernel either. What a deal. Read about it in the Network
Administrator's Guide, available from
http://metalab.unc.edu/mdw/linux.html#guide .
If you want to compile this as a module ( = code which can be
inserted in and removed from the running kernel whenever you want),
say M here and read Documentation/modules.txt. The module will be
called dummy.o. If you want to use more than one dummy device at a
time, you need to compile this driver as a module. Instead of
'dummy', the devices will then be called 'dummy0', 'dummy1' etc.
SLIP (serial line) support
CONFIG_SLIP
Say Y if you intend to use SLIP or CSLIP (compressed SLIP) to
connect to your Internet service provider or to connect to some
other local Unix box or if you want to configure your Linux box as a
Slip/CSlip server for other people to dial in. SLIP (Serial Line
Internet Protocol) is a protocol used to send Internet traffic over
serial connections such as telephone lines or null modem cables;
nowadays, the protocol PPP is more commonly used for this same
purpose.
Normally, your access provider has to support SLIP in order for you
to be able to use it, but there is now a SLIP emulator called SLiRP
around (available via FTP (user: anonymous) from
ftp://metalab.unc.edu/pub/Linux/system/network/serial/ ) which
allows you to use SLIP over a regular dial up shell connection. If
you plan to use SLiRP, make sure to say Y to CSLIP, below. The
NET-3-HOWTO, available from
http://www.linuxdoc.org/docs.html#howto , explains how to
configure SLIP. Note that you don't need this option if you just
want to run term (term is a program which gives you almost full
Internet connectivity if you have a regular dial up shell account on
some Internet connected Unix computer. Read
http://www.bart.nl/~patrickr/term-howto/Term-HOWTO.html ). SLIP
support will enlarge your kernel by about 4 KB. If unsure, say N.
If you want to compile this as a module ( = code which can be
inserted in and removed from the running kernel whenever you want),
say M here and read Documentation/modules.txt as well as
Documentation/networking/net-modules.txt. The module will be called
slip.o.
CSLIP compressed headers
CONFIG_SLIP_COMPRESSED
This protocol is faster than SLIP because it uses compression on the
TCP/IP headers (not on the data itself), but it has to be supported
on both ends. Ask your access provider if you are not sure and
answer Y, just in case. You will still be able to use plain SLIP. If
you plan to use SLiRP, the SLIP emulator (available from
ftp://metalab.unc.edu/pub/Linux/system/network/serial/ ) which allows
you to use SLIP over a regular dial up shell connection, you
definitely want to say Y here. The NET-3-HOWTO, available from
http://www.linuxdoc.org/docs.html#howto , explains how to
configure CSLIP. This won't enlarge your kernel.
Keepalive and linefill
CONFIG_SLIP_SMART
Adds additional capabilities to the SLIP driver to support the
RELCOM line fill and keepalive monitoring. Ideal on poor quality
analogue lines.
Six bit SLIP encapsulation
CONFIG_SLIP_MODE_SLIP6
Just occasionally you may need to run IP over hostile serial
networks that don't pass all control characters or are only seven
bit. Saying Y here adds an extra mode you can use with SLIP:
"slip6". In this mode, SLIP will only send normal ASCII symbols over
the serial device. Naturally, this has to be supported at the other
end of the link as well. It's good enough, for example, to run IP
over the async ports of a Camtec JNT Pad. If unsure, say N.
PPP (point-to-point protocol) support
CONFIG_PPP
PPP (Point to Point Protocol) is a newer and better SLIP. It serves
the same purpose: sending Internet traffic over telephone (and other
serial) lines. Ask your access provider if they support it, because
otherwise you can't use it; most internet access providers these
days support PPP rather than SLIP.
To use PPP, you need an additional program called pppd as described
in Documentation/networking/ppp.txt and in the PPP-HOWTO, available
at http://www.linuxdoc.org/docs.html#howto . If you upgrade
from an older kernel, you might need to upgrade pppd as well. The
PPP option enlarges your kernel by about 16 KB.
There are actually two versions of PPP: the traditional PPP for
asynchronous lines, such as regular analog phone lines, and
synchronous PPP which can be used over digital ISDN lines for
example. If you want to use PPP over phone lines or other
asynchronous serial lines, you need to say Y (or M) here and also to
the next option, "PPP support for async serial ports". For PPP over
synchronous lines, you should say Y (or M) here and to "Support
synchronous PPP", below.
This driver is also available as a module ( = code which can be
inserted in and removed from the running kernel whenever you want).
If you said Y to "Version information on all symbols" above, then
you cannot compile the PPP driver into the kernel; you can then only
compile it as a module. The module will be called ppp_generic.o. If
you want to compile it as a module, say M here and read
Documentation/modules.txt as well as
Documentation/networking/net-modules.txt.
PPP support for async serial ports
CONFIG_PPP_ASYNC
Say Y (or M) here if you want to be able to use PPP over standard
asynchronous serial ports, such as COM1 or COM2 on a PC. If you use
a modem (not a synchronous or ISDN modem) to contact your ISP, you
need this option.
This code is also available as a module (code which can be inserted
into and removed from the running kernel). If you want to compile
it as a module, say M here and read Documentation/modules.txt.
CONFIG_PPP_SYNC_TTY
Say Y (or M) here if you want to be able to use PPP over synchronous
(HDLC) tty devices, such as the SyncLink adapter. These devices
are often used for high-speed leased lines like T1/E1.
This code is also available as a module (code which can be inserted
into and removed from the running kernel). If you want to compile
it as a module, say M here and read Documentation/modules.txt.
PPP Deflate compression
CONFIG_PPP_DEFLATE
Support for the Deflate compression method for PPP, which uses the
Deflate algorithm (the same algorithm that gzip uses) to compress
each PPP packet before it is sent over the wire. The machine at the
other end of the PPP link (usually your ISP) has to support the
Deflate compression method as well for this to be useful. Even if
they don't support it, it is safe to say Y here.
This code is also available as a module (code which can be inserted
into and removed from the running kernel). If you want to compile
it as a module, say M here and read Documentation/modules.txt.
PPP BSD-Compress compression
CONFIG_PPP_BSDCOMP
Support for the BSD-Compress compression method for PPP, which uses
the LZW compression method to compress each PPP packet before it is
sent over the wire. The machine at the other end of the PPP link
(usually your ISP) has to support the BSD-Compress compression
method as well for this to be useful. Even if they don't support it,
it is safe to say Y here.
The PPP Deflate compression method ("PPP Deflate compression",
above) is preferable to BSD-Compress, because it compresses better
and is patent-free.
Note that the BSD compression code will always be compiled as a
module; it is called bsd_comp.o and will show up in the directory
modules once you have said "make modules". If unsure, say N.
Wireless LAN (non-hamradio)
CONFIG_NET_RADIO
Support for wireless LANs and everything having to do with radio,
but not with amateur radio. Note that the answer to this question
won't directly affect the kernel: saying N will just cause this
configure script to skip all the questions about radio
interfaces.
Some user-level drivers for scarab devices which don't require
special kernel support are available from
ftp://shadow.cabi.net/pub/Linux .
STRIP (Metricom Starmode radio IP)
CONFIG_STRIP
Say Y if you have a Metricom radio and intend to use Starmode Radio
IP. STRIP is a radio protocol developed for the MosquitoNet project
(on the WWW at http://mosquitonet.stanford.edu/ ) to send Internet
traffic using Metricom radios. Metricom radios are small, battery
powered, 100kbit/sec packet radio transceivers, about the size and
weight of a cellular telephone. (You may also have heard them called
"Metricom modems" but we avoid the term "modem" because it misleads
many people into thinking that you can plug a Metricom modem into a
phone line and use it as a modem.)
You can use STRIP on any Linux machine with a serial port, although
it is obviously most useful for people with laptop computers. If you
think you might get a Metricom radio in the future, there is no harm
in saying Y to STRIP now, except that it makes the kernel a bit
bigger.
You can also compile this as a module ( = code which can be inserted
in and removed from the running kernel whenever you want), say M
here and read Documentation/modules.txt. The module will be called
strip.o.
AT&T WaveLAN & DEC RoamAbout DS support
CONFIG_WAVELAN
The Lucent WaveLAN (formerly NCR and AT&T; or DEC RoamAbout DS) is
a Radio LAN (wireless Ethernet-like Local Area Network) using the
radio frequencies 900 MHz and 2.4 GHz.
This driver support the ISA version of the WaveLAN card. A separate
driver for the PCMCIA (PC-card) hardware is available in David
Hinds' pcmcia-cs package (see the file Documentation/Changes for
location).
If you want to use an ISA WaveLAN card under Linux, say Y and read
the Ethernet-HOWTO, available from
http://www.linuxdoc.org/docs.html#howto . Some more specific
information is contained in Documentation/networking/wavelan.txt and
in the source code drivers/net/wavelan.p.h.
You will also need the wireless tools package available from
ftp://hyper.stanford.edu/pub/pcmcia/contrib/ . Please read the man
pages contained therein.
This driver is also available as a module ( = code which can be
inserted in and removed from the running kernel whenever you want).
The module will be called wavelan.o. If you want to compile it as a
module, say M here and read Documentation/modules.txt as well as
Documentation/networking/net-modules.txt.
Aironet Arlan 655 & IC2200 DS support
CONFIG_ARLAN
Aironet makes Arlan, a class of wireless LAN adapters. These use the
www.Telxon.com chip, which is also used on several similar cards.
This driver is tested on the 655 and IC2200 series cards. Look at
http://www.ylenurme.ee/~elmer/655/ for latest information.
The driver is built as two modules, arlan and arlan-proc. The latter
is the /proc interface and is not needed most of time.
On some computers the card ends up in non-valid state after some time.
Use a ping-reset script to clear it.
Aironet 4500/4800 series adapters
CONFIG_AIRONET4500
www.aironet.com (recently bought by Cisco) makes these 802.11 DS
adapters. Driver by Elmer Joandi (elmer@ylenurme.ee).
Work sponsored by www.spectrumwireless.net and www.vendomar.ee
This configuration option enables common code for all devices (PCI, ISA,
PCMCIA)
module is aironet4500_core
quick config parameters:
SSID=tsunami - "The Password"
adhoc=1 there are no Access Points around
master=1 Adhoc master (the one who creates network sync)
slave=1 Adhoc slave(btw, it is still forming own net
sometimes)
channel=1..? meaningful in adhoc mode
all other parameters can be set via proc interface
These parameters belong to .._card module, but alas, they are here
if you have problems with screwing up card, both_bap_lock=1 is conservative
value (performance hit 15%)
for any other configuration options look at ..._proc module
Aironet 4500/4800 ISA/PCI/PNP/365 support
CONFIG_AIRONET4500_NONCS
This is module aironet4500_card, which includes _possibility_ to
support for following
PCI device
ISA device in ISA mode(does not work currently)
ISA device in PNP mode
PCMCIA device _without_ cardservices, direct 365 chip INIT,
does not work currently
PCMCIA _with_ CardServices(normal way) is at another module
radio parameters are currently configurable at ..._core module
Aironet 4500/4800 PNP support
CONFIG_AIRONET4500_PNP
This option should be enabled for ISA cards, remember to enable
PNP jumper on board.
module aironet4500_card
Aironet 4500/4800 PCI support
CONFIG_AIRONET4500_PCI
This option should be enabled for PCI cards
module aironet4500_card
Aironet 4500/4800 ISA broken support (EXPERIMENTAL)
CONFIG_AIRONET4500_ISA
This option enables support for ISA cards in non-PNP mode.
Does not operate correctly by now.
module aironet4500_card
Aironet 4500/4800 I365 broken support (EXPERIMENTAL)
CONFIG_AIRONET4500_I365
This option enables support for PCMCIA cards on i365 controller
_without_ cardservices. Doesn't have much sense and is not working
properly. Comes from times where there was no PCMCIA support in
kernel main source tree
Aironet 4500/4800 PCMCIA support
CONFIG_AIRONET4500_CS
This option enables support for PCMCIA cards to be used with
CardServices.
This is not for ISA and PCI adapters.
module aironet4500_cs.o
The same option is both on:
1. PCMCIA netdevices configuring panel
2. Wireless netdevices configuring panel
Possibility to change this option depends on options set in 2.
Aironet 4500/4800 PROC interface
CONFIG_AIRONET4500_PROC
This option enables /proc/sys/aironet4500 interface for
configuring the device.
NOTE: it takes lot of memory. Compile it as module and remove
after configuration
module: aironet4500_proc
additional info: look into drivers/net/aironet4500_rids.c
this is quite human-readable(no need to know C)
LAPB over Ethernet driver
CONFIG_LAPBETHER
This is a driver for a pseudo device (typically called /dev/lapb0)
which allows you to open an LAPB point-to-point connection to some
other computer on your Ethernet network. In order to do this, you
need to say Y or M to the driver for your Ethernet card as well as
to "LAPB Data Link Driver".
If you want to compile this driver as a module ( = code which can be
inserted in and removed from the running kernel whenever you want),
say M here and read Documentation/modules.txt. The module will be
called lapbether.o. If unsure, say N.
X.25 async driver
CONFIG_X25_ASY
This is a driver for sending and receiving X.25 frames over regular
asynchronous serial lines such as telephone lines equipped with
ordinary modems. Experts should note that this driver doesn't
currently comply with the asynchronous HDLS framing protocols in
CCITT recommendation X.25.
If you want to compile this driver as a module ( = code which can be
inserted in and removed from the running kernel whenever you want),
say M here and read Documentation/modules.txt. The module will be
called x25_asy.o. If unsure, say N.
PCMCIA network device support
CONFIG_NET_PCMCIA
Say Y if you would like to include support for any PCMCIA network
adapters. If unsure, say N.
3Com 3c589 PCMCIA support
CONFIG_PCMCIA_3C589
Say Y here if you intend to attach a 3Com 3c589 or compatible PCMCIA
(PC-card) Ethernet card to your computer.
This driver is also available as a module ( = code which can be
inserted in and removed from the running kernel whenever you want).
The module will be called 3c589_cs.o. If you want to compile it as a
module, say M here and read Documentation/modules.txt. If unsure,
say N.
3Com 3c574 PCMCIA support
CONFIG_PCMCIA_3C574
Say Y here if you intend to attach a 3Com 3c574 or compatible PCMCIA
(PC-card) Fast Ethernet card to your computer.
This driver is also available as a module ( = code which can be
inserted in and removed from the running kernel whenever you want).
The module will be called 3c574_cs.o. If you want to compile it as a
module, say M here and read Documentation/modules.txt. If unsure,
say N.
Fujitsu FMV-J18x PCMCIA support
CONFIG_PCMCIA_FMVJ18X
Say Y here if you intend to attach a Fujitsu FMV-J18x or compatible
PCMCIA (PC-card) Ethernet card to your computer.
This driver is also available as a module ( = code which can be
inserted in and removed from the running kernel whenever you want).
The module will be called fmvj18x_cs.o. If you want to compile it as a
module, say M here and read Documentation/modules.txt. If unsure,
say N.
NE2000 compatible PCMCIA support
CONFIG_PCMCIA_PCNET
Say Y here if you intend to attach an NE2000 compatible PCMCIA
(PC-card) Ethernet or Fast Ethernet card to your computer.
This driver is also available as a module ( = code which can be
inserted in and removed from the running kernel whenever you want).
The module will be called pcnet_cs.o. If you want to compile it as a
module, say M here and read Documentation/modules.txt. If unsure,
say N.
New Media PCMCIA support
CONFIG_PCMCIA_NMCLAN
Say Y here if you intend to attach a New Media Ethernet or LiveWire
PCMCIA (PC-card) Ethernet card to your computer.
This driver is also available as a module ( = code which can be
inserted in and removed from the running kernel whenever you want).
The module will be called nmclan_cs.o. If you want to compile it as a
module, say M here and read Documentation/modules.txt. If unsure,
say N.
SMC 91Cxx PCMCIA support
CONFIG_PCMCIA_SMC91C92
Say Y here if you intend to attach an SMC 91Cxx compatible PCMCIA
(PC-card) Ethernet or Fast Ethernet card to your computer.
This driver is also available as a module ( = code which can be
inserted in and removed from the running kernel whenever you want).
The module will be called smc91c92_cs.o. If you want to compile it as a
module, say M here and read Documentation/modules.txt. If unsure,
say N.
Xircom 16-bit PCMCIA support
CONFIG_PCMCIA_XIRC2PS
Say Y here if you intend to attach a Xircom 16-bit PCMCIA
(PC-card) Ethernet or Fast Ethernet card to your computer.
This driver is also available as a module ( = code which can be
inserted in and removed from the running kernel whenever you want).
The module will be called xirc2ps_cs.o. If you want to compile it as a
module, say M here and read Documentation/modules.txt. If unsure,
say N.
3Com 3c575 CardBus support
CONFIG_PCMCIA_3C575
This driver supports the 3Com 3c575 series of CardBus Fast Ethernet
adapters.
This driver can only be compiled as a module ( = code which can be
inserted in and removed from the running kernel whenever you want).
The module will be called 3c575_cb.o. If you want to do that, say M
here and read Documentation/modules.txt. If unsure, say N.
DEC Tulip CardBus support
CONFIG_PCMCIA_TULIP
This driver supports CardBus Fast Ethernet adapters based on DEC
Tulip and compatible chipsets.
This driver can only be compiled as a module ( = code which can be
inserted in and removed from the running kernel whenever you want).
The module will be called tulip_cb.o. If you want to do that, say M
here and read Documentation/modules.txt. If unsure, say N.
SMC EPIC CardBus support
CONFIG_PCMCIA_EPIC100
This driver supports CardBus Fast Ethernet adapters based on the SMC
EPIC chipset.
This driver can only be compiled as a module ( = code which can be
inserted in and removed from the running kernel whenever you want).
The module will be called epic100_cb.o. If you want to do that, say
M here and read Documentation/modules.txt. If unsure, say N.
Aviator/Raytheon 2.4MHz wireless support
CONFIG_PCMCIA_RAYCS
Say Y here if you intend to attach an Aviator/Raytheon PCMCIA
(PC-card) wireless Ethernet networking card to your computer.
This driver is also available as a module ( = code which can be
inserted in and removed from the running kernel whenever you want).
The module will be called ray_cs.o. If you want to compile it as a
module, say M here and read Documentation/modules.txt. If unsure,
say N.
Xircom Netwave AirSurfer wireless support
CONFIG_PCMCIA_NETWAVE
Say Y here if you intend to attach a Xircom Netwave AirSurfer PCMCIA
(PC-card) wireless Ethernet networking card to your computer.
This driver is also available as a module ( = code which can be
inserted in and removed from the running kernel whenever you want).
The module will be called netwave_cs.o. If you want to compile it as a
module, say M here and read Documentation/modules.txt. If unsure,
say N.
AT&T/Lucent Wavelan wireless support
CONFIG_PCMCIA_WAVELAN
Say Y here if you intend to attach an AT&T/Lucent Wavelan PCMCIA
(PC-card) wireless Ethernet networking card to your computer. This
driver is for the non-IEEE-802.11 Wavelan cards.
This driver is also available as a module ( = code which can be
inserted in and removed from the running kernel whenever you want).
The module will be called wavelan_cs.o. If you want to compile it as a
module, say M here and read Documentation/modules.txt. If unsure,
say N.
PLIP (parallel port) support
CONFIG_PLIP
PLIP (Parallel Line Internet Protocol) is used to create a
reasonably fast mini network consisting of two (or, rarely, more)
local machines. A PLIP link from a Linux box is a popular means to
install a Linux distribution on a machine which doesn't have a CDROM
drive (a minimal system has to be transferred with floppies first).
The kernels on both machines need to have this PLIP option enabled
for this to work.
The PLIP driver has two modes, mode 0 and mode 1. The parallel ports
(the connectors at the computers with 25 holes) are connected with
"null printer" or "Turbo Laplink" cables which can transmit 4 bits
at a time (mode 0) or with special PLIP cables, to be used on
bidirectional parallel ports only, which can transmit 8 bits at a
time (mode 1); you can find the wiring of these cables in
Documentation/networking/PLIP.txt. The cables can be up to 15m long.
Mode 0 works also if one of the machines runs DOS/Windows and has
some PLIP software installed, e.g. the Crynwr PLIP packet driver
(http://oak.oakland.edu/simtel.net/msdos/pktdrvr-pre.html ) and
winsock or NCSA's telnet.
If you want to use PLIP, say Y and read the PLIP mini-HOWTO as well
as the NET-3-HOWTO, both available from
http://www.linuxdoc.org/docs.html#howto . Note that the PLIP
protocol has been changed and this PLIP driver won't work together
with the PLIP support in Linux versions 1.0.x. This option enlarges
your kernel by about 8 KB.
If you want to compile this as a module ( = code which can be
inserted in and removed from the running kernel whenever you want),
say M here and read Documentation/modules.txt as well as
Documentation/networking/net-modules.txt. The module will be called
plip.o. If unsure, say Y or M, in case you buy a laptop later.
EQL (serial line load balancing) support
CONFIG_EQUALIZER
If you have two serial connections to some other computer (this
usually requires two modems and two telephone lines) and you use
SLIP (the protocol for sending Internet traffic over telephone
lines) or PPP (a better SLIP) on them, you can make them behave like
one double speed connection using this driver. Naturally, this has
to be supported at the other end as well, either with a similar EQL
Linux driver or with a Livingston Portmaster 2e.
Say Y if you want this and read Documentation/networking/eql.txt.
You may also want to read section 6.2 of the NET-3-HOWTO, available
from http://www.linuxdoc.org/docs.html#howto .
This driver is also available as a module ( = code which can be
inserted in and removed from the running kernel whenever you want).
The module will be called eql.o. If you want to compile it as a
module, say M here and read Documentation/modules.txt. If unsure,
say N.
Ethertap network tap (EXPERIMENTAL)
CONFIG_ETHERTAP
If you say Y here (and have said Y to "Kernel/User network link
driver", above) and create a character special file /dev/tap0 with
major number 36 and minor number 16 using mknod ("man mknod"), you
will be able to have a user space program read and write raw
Ethernet frames from/to that special file. tap0 can be configured
with ifconfig and route like any other Ethernet device but it is not
connected to any physical LAN; everything written by the user to
/dev/tap0 is treated by the kernel as if it had come in from a LAN
to the device tap0; everything the kernel wants to send out over the
device tap0 can instead be read by the user from /dev/tap0: the user
mode program replaces the LAN that would be attached to an ordinary
Ethernet device. Please read the file
Documentation/networking/ethertap.txt for more information.
This driver is also available as a module ( = code which can be
inserted in and removed from the running kernel whenever you want).
The module will be called ethertap.o. If you want to compile it as a
module, say M here and read Documentation/modules.txt.
If you don't know what to use this for, you don't need it.
Sealevel Systems 4021 support
CONFIG_SEALEVEL_4021
This is a driver for the Sealevel Systems ACB 56 serial I/O adapter.
This driver can only be compiled as a module ( = code which can be
inserted in and removed from the running kernel whenever you want).
If you want to do that, say M here. The module will be called
sealevel.o.
Frame Relay (DLCI) support
CONFIG_DLCI
This is support for the frame relay protocol; frame relay is a fast
low-cost way to connect to a remote Internet access provider or to
form a private wide area network. The one physical line from your
box to the local "switch" (i.e. the entry point to the frame relay
network, usually at the phone company) can carry several logical
point-to-point connections to other computers connected to the frame
relay network. For a general explanation of the protocol, check out
http://www.frforum.com/ on the WWW. To use frame relay, you need
supporting hardware (called FRAD) and certain programs from the
net-tools package as explained in
Documentation/networking/framerelay.txt.
This driver is also available as a module ( = code which can be
inserted in and removed from the running kernel whenever you want).
The module will be called dlci.o. If you want to compile it as a
module, say M here and read Documentation/modules.txt.
Max open DLCI
CONFIG_DLCI_COUNT
This is the maximal number of logical point-to-point frame relay
connections (the identifiers of which are called DCLIs) that
the driver can handle. The default is probably fine.
Max DLCI per device
CONFIG_DLCI_MAX
You can specify here how many logical point-to-point frame relay
connections (the identifiers of which are called DCLIs) should be
handled by each of your hardware frame relay access devices. Go with
the default.
Sangoma S502A FRAD support
CONFIG_SDLA
Say Y here if you need a driver for the Sangoma S502A, S502E, and
S508 Frame Relay Access Devices. These are multi-protocol cards, but
only frame relay is supported by the driver at this time. Please
read Documentation/framerelay.txt.
This driver is also available as a module ( = code which can be
inserted in and removed from the running kernel whenever you want).
The module will be called sdla.o. If you want to compile it as a
module, say M here and read Documentation/modules.txt.
Acorn Econet/AUN protocols (EXPERIMENTAL)
CONFIG_ECONET
Econet is a fairly old and slow networking protocol mainly used by
Acorn computers to access file and print servers. It uses native
Econet network cards. AUN is an implementation of the higher level
parts of Econet that runs over ordinary Ethernet connections, on
top of the UDP packet protocol, which in turn runs on top of the
Internet protocol IP.
If you say Y here, you can choose with the next two options whether
to send Econet/AUN traffic over a UDP Ethernet connection or over
a native Econet network card.
This driver is also available as a module ( = code which can be
inserted in and removed from the running kernel whenever you want).
The module will be called econet.o. If you want to compile it as a
module, say M here and read Documentation/modules.txt.
AUN over UDP
CONFIG_ECONET_AUNUDP
Say Y here if you want to send Econet/AUN traffic over a UDP
connection (UDP is a packet based protocol that runs on top of the
Internet protocol IP) using an ordinary Ethernet network card.
Native Econet
CONFIG_ECONET_NATIVE
Say Y here if you have a native Econet network card installed in
your computer.
WAN Router
CONFIG_WAN_ROUTER
Wide Area Networks (WANs), such as X.25, frame relay and leased
lines, are used to interconnect Local Area Networks (LANs) over vast
distances with data transfer rates significantly higher than those
achievable with commonly used asynchronous modem connections.
Usually, a quite expensive external device called a `WAN router' is
needed to connect to a WAN.
As an alternative, WAN routing can be built into the Linux kernel.
With relatively inexpensive WAN interface cards available on the
market, a perfectly usable router can be built for less than half
the price of an external router. If you have one of those cards and
wish to use your Linux box as a WAN router, say Y here and also to
the WAN driver for your card, below. You will then need the
wan-tools package which is available from ftp://ftp.sangoma.com .
Read Documentation/networking/wan-router.txt for more information.
The WAN routing support is also available as a module called
wanrouter.o ( = code which can be inserted in and removed from the
running kernel whenever you want). If you want to compile it as a
module, say M here and read Documentation/modules.txt.
If unsure, say N.
Fast switching (read help!)
CONFIG_NET_FASTROUTE
Saying Y here enables direct NIC-to-NIC (NIC = Network Interface
Card) data transfers on the local network, which is fast.
IMPORTANT NOTE: This option is NOT COMPATIBLE with "Network packet
filtering" (CONFIG_NETFILTER). Say N here if you say Y there.
However, it will work with all options in the "IP: advanced router"
section (except for "IP: use TOS value as routing key" and
"IP: use FWMARK value as routing key").
At the moment, few devices support fast switching (tulip is one of
them, a modified 8390 driver can be found at
ftp://ftp.inr.ac.ru/ip-routing/fastroute/fastroute-8390.tar.gz ).
If unsure, say N.
Forwarding between high speed interfaces
CONFIG_NET_HW_FLOWCONTROL
This option enables NIC (Network Interface Card) hardware throttling
during periods of extremal congestion. At the moment only a couple
of device drivers support it (really only one -- tulip, a modified
8390 driver can be found at
ftp://ftp.inr.ac.ru/ip-routing/fastroute/fastroute-8390.tar.gz ).
Really, this option is applicable to any machine attached to a fast
enough network, and even a 10 Mb NIC is able to kill a not very slow
box, such as a 120MHz Pentium.
However, do not say Y here if you did not experience any serious
problems.
QoS and/or fair queueing
CONFIG_NET_SCHED
When the kernel has several packets to send out over a network
device, it has to decide which ones to send first, which ones to
delay, and which ones to drop. This is the job of the packet
scheduler, and several different algorithms for how to do this
"fairly" have been proposed.
If you say N here, you will get the standard packet scheduler, which
is a FIFO (first come, first served). If you say Y here, you will be
able to choose from among several alternative algorithms which can
then be attached to different network devices. This is useful for
example if some of your network devices are real time devices that
need a certain minimum data flow rate, or if you need to limit the
maximum data flow rate for traffic which matches specified criteria.
This code is considered to be experimental.
To administer these schedulers, you'll need the user-level utilities
from the package iproute2+tc at ftp://ftp.inr.ac.ru/ip-routing/ .
That package also contains some documentation; for more, check out
http://snafu.freedom.org/linux2.2/iproute-notes.html .
If you say Y here and to "/proc file systems" below, you will be able
to read status information about packet schedulers from the file
/proc/net/psched.
The available schedulers are listed in the following questions; you
can say Y to as many as you like. If unsure, say N now.
CBQ packet scheduler
CONFIG_NET_SCH_CBQ
Say Y here if you want to use the Class-Based Queueing (CBQ) packet
scheduling algorithm for some of your network devices. This
algorithm classifies the waiting packets into a tree-like hierarchy
of classes; the leaves of this tree are in turn scheduled by
separate algorithms (called "disciplines" in this context).
See the top of net/sched/sch_cbq.c for references about the CBQ
algorithm.
CBQ is a commonly used scheduler, so if you're unsure, you should
say Y here. Then say Y to all the queueing algorithms below that you
want to use as CBQ disciplines. Then say Y to "Packet classifier
API" and say Y to all the classifiers you want to use; a classifier
is a routine that allows you to sort your outgoing traffic into
classes based on a certain criterion.
This code is also available as a module called sch_cbq.o ( = code
which can be inserted in and removed from the running kernel
whenever you want). If you want to compile it as a module, say M
here and read Documentation/modules.txt.
CSZ packet scheduler
CONFIG_NET_SCH_CSZ
Say Y here if you want to use the Clark-Shenker-Zhang (CSZ) packet
scheduling algorithm for some of your network devices. At the
moment, this is the only algorithm that can guarantee service for
real-time applications (see the top of net/sched/sch_csz.c for
details and references about the algorithm).
Note: this scheduler is currently broken.
This code is also available as a module called sch_csz.o ( = code
which can be inserted in and removed from the running kernel
whenever you want). If you want to compile it as a module, say M
here and read Documentation/modules.txt.
#ATM pseudo-scheduler
#CONFIG_NET_SCH_ATM
#
# ???
#
The simplest PRIO pseudo scheduler
CONFIG_NET_SCH_PRIO
Say Y here if you want to use an n-band priority queue packet
"scheduler" for some of your network devices or as a leaf discipline
for the CBQ scheduling algorithm. If unsure, say Y.
This code is also available as a module called sch_prio.o ( = code
which can be inserted in and removed from the running kernel
whenever you want). If you want to compile it as a module, say M
here and read Documentation/modules.txt.
RED queue
CONFIG_NET_SCH_RED
Say Y here if you want to use the Random Early Detection (RED)
packet scheduling algorithm for some of your network devices (see
the top of net/sched/sch_red.c for details and references about the
algorithm).
This code is also available as a module called sch_red.o ( = code
which can be inserted in and removed from the running kernel
whenever you want). If you want to compile it as a module, say M
here and read Documentation/modules.txt.
SFQ queue
CONFIG_NET_SCH_SFQ
Say Y here if you want to use the Stochastic Fairness Queueing (SFQ)
packet scheduling algorithm for some of your network devices or as a
leaf discipline for the CBQ scheduling algorithm (see the top of
net/sched/sch_sfq.c for details and references about the SFQ
algorithm).
This code is also available as a module called sch_sfq.o ( = code
which can be inserted in and removed from the running kernel
whenever you want). If you want to compile it as a module, say M
here and read Documentation/modules.txt.
TEQL queue
CONFIG_NET_SCH_TEQL
Say Y here if you want to use the True Link Equalizer (TLE) packet
scheduling algorithm for some of your network devices or as a leaf
discipline for the CBQ scheduling algorithm. This queueing
discipline allows the combination of several physical devices into
one virtual device. (see the top of net/sched/sch_teql.c for
details).
This code is also available as a module called sch_teql.o ( = code
which can be inserted in and removed from the running kernel
whenever you want). If you want to compile it as a module, say M
here and read Documentation/modules.txt.
TBF queue
CONFIG_NET_SCH_TBF
Say Y here if you want to use the Simple Token Bucket Filter (TBF)
packet scheduling algorithm for some of your network devices or as a
leaf discipline for the CBQ scheduling algorithm (see the top of
net/sched/sch_tbf.c for a description of the TBF algorithm).
This code is also available as a module called sch_tbf.o ( = code
which can be inserted in and removed from the running kernel
whenever you want). If you want to compile it as a module, say M
here and read Documentation/modules.txt.
QoS support
CONFIG_NET_QOS
Say Y here if you want to include Quality Of Service scheduling
features, which means that you will be able to request certain
rate-of-flow limits for your network devices.
Note that the answer to this question won't directly affect the
kernel: saying N will just cause this configure script to skip all
the questions about QoS support.
Rate estimator
CONFIG_NET_ESTIMATOR
In order for Quality of Service scheduling to work, the current
rate-of-flow for a network device has to be estimated; if you say Y
here, the kernel will do just that.
Packet classifier API
CONFIG_NET_CLS
The CBQ scheduling algorithm requires that network packets which are
scheduled to be sent out over a network device be classified
according to some criterion. If you say Y here, you will get a
choice of several different packet classifiers with the following
questions.
Routing tables based classifier
CONFIG_NET_CLS_ROUTE
If you say Y here, you will be able to classify outgoing packets
according to the route table entry they matched. If unsure, say Y.
This code is also available as a module called cls_route.o ( = code
which can be inserted in and removed from the running kernel
whenever you want). If you want to compile it as a module, say M
here and read Documentation/modules.txt.
Firewall based classifier
CONFIG_NET_CLS_FW
If you say Y here, you will be able to classify outgoing packets
according to firewall criteria you specified.
This code is also available as a module called cls_fw.o ( = code
which can be inserted in and removed from the running kernel
whenever you want). If you want to compile it as a module, say M
here and read Documentation/modules.txt.
U32 classifier
CONFIG_NET_CLS_U32
If you say Y here, you will be able to classify outgoing packets
according to their destination address. If unsure, say Y.
This code is also available as a module called cls_u32.o ( = code
which can be inserted in and removed from the running kernel
whenever you want). If you want to compile it as a module, say M
here and read Documentation/modules.txt
Special RSVP classifier
CONFIG_NET_CLS_RSVP
The Resource Reservation Protocol (RSVP) permits end systems to
request a minimum and maximum data flow rate for a connection; this
is important for real time data such as streaming sound or video.
Say Y here if you want to be able to classify outgoing packets based
on their RSVP requests.
This code is also available as a module called cls_rsvp.o ( = code
which can be inserted in and removed from the running kernel
whenever you want). If you want to compile it as a module, say M
here and read Documentation/modules.txt
Special RSVP classifier for IPv6
CONFIG_NET_CLS_RSVP6
The Resource Reservation Protocol (RSVP) permits end systems to
request a minimum and maximum data flow rate for a connection; this
is important for real time data such as streaming sound or video.
Say Y here if you want to be able to classify outgoing packets based
on their RSVP requests and you are using the new Internet Protocol
IPv6 as opposed to the older and more common IPv4.
This code is also available as a module called cls_rsvp6.o ( = code
which can be inserted in and removed from the running kernel
whenever you want). If you want to compile it as a module, say M
here and read Documentation/modules.txt
#
# Ingres traffic policing
# CONFIG_NET_CLS_POLICE
###
### Some expert please fill these in
###
Network code profiler
CONFIG_NET_PROFILE
If you say Y here and to "/proc file systems support" below, some
obscure and undocumented information about the network code's
performance will be written to /proc/net/profile. If you don't know
what it is about, you don't need it: say N.
Comtrol Hostess SV-11 support
CONFIG_HOSTESS_SV11
This is a network card for low speed synchronous serial links, at
up to 256Kbps. It supports both PPP and Cisco HDLC.
At this point, the driver can only be compiled as a module.
COSA/SRP sync serial boards support
CONFIG_COSA
This is a driver for COSA and SRP synchronous serial boards. These
boards allow to connect synchronous serial devices (for example
base-band modems, or any other device with the X.21, V.24, V.35 or
V.36 interface) to your Linux box. The cards can work as the
character device, synchronous PPP network device, or the Cisco HDLC
network device.
To actually use the COSA or SRP board, you will need user-space
utilities for downloading the firmware to the cards and to set them
up. Look at the http://www.fi.muni.cz/~kas/cosa/ for more
information about the cards (including the pointer to the user-space
utilities). You can also read the comment at the top of the
drivers/net/cosa.c for details about the cards and the driver
itself.
The driver will be compiled as a module ( = code which can be
inserted in and removed from the running kernel whenever you want).
The module will be called cosa.o. For general information about
modules read Documentation/modules.txt.
# Fibre Channel driver support
# CONFIG_NET_FC
# Interphase 5526 Tachyon chipset based adaptor support
# CONFIG_IPHASE5526
Red Creek Hardware VPN (EXPERIMENTAL)
CONFIG_RCPCI
This is a driver for hardware which provides a Virtual Private
Network (VPN). Say Y if you have it.
This code is also available as a module called rcpci.o ( = code
which can be inserted in and removed from the running kernel
whenever you want). If you want to compile it as a module, say M
here and read Documentation/modules.txt.
SBNI Leased Line Adapters
CONFIG_SBNI
This is a driver for ISA SBNI12-xx cards that is a low cost
alternative to leased line modems. Say Y if you want to insert
driver into kernel or say M to compile driver as a module.
You can find more information and last versions of drivers and
utilities at http://www.granch.ru. If you have any question you
can mail to sbni@granch.ru.
Say N if unsure.
WAN Drivers
CONFIG_WAN_DRIVERS
Say Y to this option if your Linux box contains a WAN card and you
are planning to use the box as a WAN ( = Wide Area Network) router
( = device used to interconnect local area networks over wide area
communication links, such as leased lines or public data networks,
e.g. X.25 or frame relay) and you will be offered a list of drivers
for WAN cards currently available. For more information, read
Documentation/networking/wan-router.txt.
Note that the answer to this question won't directly affect the
kernel: saying N will just cause this configure script to skip all
the questions about WAN card drivers. If unsure, say N.
Sangoma WANPIPE(tm) multiprotocol cards
CONFIG_VENDOR_SANGOMA
WANPIPE from Sangoma Technologies Inc. (http://www.sangoma.com ) is a
family of intelligent multiprotocol WAN adapters with data transfer
rates up to T1 (1.544 Mbps). They are also known as Synchronous Data
Link Adapters (SDLA) and designated S502E(A), S503 or S508. These
cards support the X.25, Frame Relay, and PPP protocols. If you have
one or more of these cards, say Y to this option; you may then also
want to read the file Documentation/networking/wanpipe.txt. The next
questions will ask you about the protocols you want the driver to
support.
The driver will be compiled as a module ( = code which can be
inserted in and removed from the running kernel whenever you want).
The module will be called wanpipe.o. For general information about
modules read Documentation/modules.txt.
Maximum number of cards
CONFIG_WANPIPE_CARDS
Enter number of WANPIPE adapters installed in your machine. The
driver can support up to 8 cards. You may enter more than you
actually have if you plan to add more cards in the future without
re-compiling the driver, but remember that in this case you'll waste
some kernel memory (about 1K per card).
WANPIPE X.25 support
CONFIG_WANPIPE_X25
Say Y to this option if you are planning to connect a WANPIPE card
to an X.25 network. You should then also have said Y to "CCITT X.25
Packet Layer" and "LAPB Data Link Driver", above. If you say N, the
X.25 support will not be included in the driver (saves about 16 KB
of kernel memory).
WANPIPE Frame Relay support
CONFIG_WANPIPE_FR
Say Y to this option if you are planning to connect a WANPIPE card
to a frame relay network. You should then also have said Y to "Frame
Relay (DLCI) support", above. If you say N, the frame relay
support will not be included in the driver (saves about 16 KB of
kernel memory).
WANPIPE PPP support
CONFIG_WANPIPE_PPP
Say Y to this option if you are planning to connect a WANPIPE card
to a leased line using Point-to-Point protocol (PPP). You should
then also have said Y to "PPP (point-to-point) support", above. If
you say N, the PPP support will not be included in the driver (saves
about 16 KB of kernel memory).
Cyclom 2X(tm) multiprotocol cards (EXPERIMENTAL)
CONFIG_CYCLADES_SYNC
Cyclom 2X from Cyclades Corporation (http://www.cyclades.com and
http://www.cyclades.com.br) is an intelligent multiprotocol WAN
adapter with data transfer rates up to 512 Kbps. These cards support
the X.25 and SNA related protocols. If you have one or more of these
cards, say Y to this option. The next questions will ask you about
the protocols you want the driver to support (for now only X.25 is
supported).
While no documentation is available at this time please grab the
wanconfig tarball in http://www.conectiva.com.br/~acme/cycsyn-devel
(with minor changes to make it compile with the current wanrouter
include files; efforts are being made to use the original package
available at ftp://ftp.sangoma.com ).
Feel free to contact me or the cycsyn-devel mailing list at
acme@conectiva.com.br and cycsyn-devel@bazar.conectiva.com.br for
additional details, I hope to have documentation available as soon
as possible (Cyclades Brazil is writing the Documentation).
The driver will be compiled as a module ( = code which can be
inserted in and removed from the running kernel whenever you want).
The module will be called cyclomx.o. For general information about
modules read Documentation/modules.txt.
Cyclom 2X X.25 support
CONFIG_CYCLOMX_X25
Say Y to this option if you are planning to connect a Cyclom 2X card
to an X.25 network.
If you say N, the X.25 support will not be included in the driver
(saves about 11 KB of kernel memory).
Ethernet (10 or 100Mbit)
CONFIG_NET_ETHERNET
Ethernet (also called IEEE 802.3 or ISO 8802-2) is the most common
type of Local Area Network (LAN) in universities and companies.
Common varieties of Ethernet are: 10BASE-2 or Thinnet (10 Mbps over
coaxial cable, linking computers in a chain), 10BASE-T or twisted
pair (10 Mbps over twisted pair cable, linking computers to central
hubs), 10BASE-F (10 Mbps over optical fiber links, using hubs),
100BASE-TX (100 Mbps over two twisted pair cables, using hubs),
100BASE-T4 (100 Mbps over 4 standard voice-grade twisted pair
cables, using hubs), 100BASE-FX (100 Mbps over optical fiber links)
[the 100BASE varieties are also known as Fast Ethernet], and Gigabit
Ethernet (1 Gbps over optical fiber or short copper links).
If your Linux machine will be connected to an Ethernet and you have
an Ethernet network interface card (NIC) installed in your computer,
say Y here and read the Ethernet-HOWTO, available from
http://www.linuxdoc.org/docs.html#howto . You will then also have
to say Y to the driver for your particular NIC.
Note that the answer to this question won't directly affect the
kernel: saying N will just cause this configure script to skip all
the questions about Ethernet network cards. If unsure, say N.
Sun LANCE Ethernet support
CONFIG_SUN_LANCE
This is support for lance Ethernet cards on Sun workstations such as
the SPARCstation IPC (any SPARC with a network interface 'le0' under
SunOS basically).
This driver is also available as a module ( = code which can be
inserted in and removed from the running kernel whenever you want).
The module will be called lance.o. If you want to compile it as a
module, say M here and read Documentation/modules.txt.
Sun Intel Ethernet support
CONFIG_SUN_INTEL
This is support for the Intel Ethernet cards on some Sun
workstations (all those with a network interface 'ie0' under SunOS).
Western Digital/SMC cards
CONFIG_NET_VENDOR_SMC
If you have a network (Ethernet) card belonging to this class, say Y
and read the Ethernet-HOWTO, available from
http://www.linuxdoc.org/docs.html#howto .
Note that the answer to this question doesn't directly affect the
kernel: saying N will just cause this configure script to skip all
the questions about Western Digital cards. If you say Y, you will be
asked for your specific card in the following questions.
WD80*3 support
CONFIG_WD80x3
If you have a network (Ethernet) card of this type, say Y and read
the Ethernet-HOWTO, available from
http://www.linuxdoc.org/docs.html#howto .
This driver is also available as a module ( = code which can be
inserted in and removed from the running kernel whenever you want).
The module will be called wd.o. If you want to compile it as a
module, say M here and read Documentation/modules.txt as well as
Documentation/networking/net-modules.txt.
SMC Ultra MCA support
CONFIG_ULTRAMCA
If you have a network (Ethernet) card of this type and are running
an MCA based system (PS/2), say Y and read the Ethernet-HOWTO,
available from http://www.linuxdoc.org/docs.html#howto .
This driver is also available as a module ( = code which can be
inserted in and removed from the running kernel whenever you want).
The module will be called smc-mca.o. If you want to compile it as a
module, say M here and read Documentation/modules.txt as well as
Documentation/networking/net-modules.txt.
SMC Ultra support
CONFIG_ULTRA
If you have a network (Ethernet) card of this type, say Y and read
the Ethernet-HOWTO, available from
http://www.linuxdoc.org/docs.html#howto .
Important: There have been many reports that, with some motherboards
mixing an SMC Ultra and an Adaptec AHA154x SCSI card (or compatible,
such as some BusLogic models) causes corruption problems with many
operating systems. The Linux smc-ultra driver has a work-around for
this but keep it in mind if you have such a SCSI card and have
problems.
This driver is also available as a module ( = code which can be
inserted in and removed from the running kernel whenever you want).
The module will be called smc-ultra.o. If you want to compile it as
a module, say M here and read Documentation/modules.txt as well as
Documentation/networking/net-modules.txt.
SMC Ultra32 EISA support
CONFIG_ULTRA32
If you have a network (Ethernet) card of this type, say Y and read
the Ethernet-HOWTO, available from
http://www.linuxdoc.org/docs.html#howto .
This driver is also available as a module ( = code which can be
inserted in and removed from the running kernel whenever you want).
The module will be called smc-ultra32.o. If you want to compile it
as a module, say M here and read Documentation/modules.txt as well
as Documentation/networking/net-modules.txt.
SMC 9194 Support
CONFIG_SMC9194
This is support for the SMC9xxx based Ethernet cards. Choose this
option if you have a DELL laptop with the docking station, or
another SMC9192/9194 based chipset. Say Y if you want it compiled
into the kernel, and read the file
Documentation/networking/smc9.txt and the Ethernet-HOWTO, available
from http://www.linuxdoc.org/docs.html#howto .
This driver is also available as a module ( = code which can be
inserted in and removed from the running kernel whenever you
want). The module will be called smc9194.o. If you want to compile
it as a module, say M here and read Documentation/modules.txt as
well as Documentation/networking/net-modules.txt.
PCI NE2000 support
CONFIG_NE2K_PCI
This driver is for NE2000 compatible PCI cards. It will not work
with ISA NE2000 cards (they have their own driver, "NE2000/NE1000
support" below). If you have a PCI NE2000 network (Ethernet) card,
say Y and read the Ethernet-HOWTO, available from
http://www.linuxdoc.org/docs.html#howto .
This driver is also available as a module ( = code which can be
inserted in and removed from the running kernel whenever you want).
The module will be called ne2k-pci.o. If you want to compile it as a
module, say M here and read Documentation/modules.txt as well as
Documentation/networking/net-modules.txt.
PCI DM9102 support
CONFIG_DM9102
This driver is for DM9102 compatible PCI cards from Davicom
(http://www.davicom.com.tw)
If you have a PCI DM9102 network (Ethernet) card, say Y.
This driver is also available as a module ( = code which can be
inserted in and removed from the running kernel whenever you want).
The module will be called dmfe.o. If you want to compile it as a
module, say M here and read Documentation/modules.txt as well as
Documentation/networking/net-modules.txt.
Racal-Interlan (Micom) NI cards
CONFIG_NET_VENDOR_RACAL
If you have a network (Ethernet) card belonging to this class, such
as the NI5010, NI5210 or NI6210, say Y and read the Ethernet-HOWTO,
available from http://www.linuxdoc.org/docs.html#howto .
Note that the answer to this question doesn't directly affect the
kernel: saying N will just cause this configure script to skip all
the questions about NI cards. If you say Y, you will be asked for
your specific card in the following questions.
NI5010 support (EXPERIMENTAL)
CONFIG_NI5010
If you have a network (Ethernet) card of this type, say Y and read
the Ethernet-HOWTO, available from
http://www.linuxdoc.org/docs.html#howto . Note that this is still
experimental code.
This driver is also available as a module ( = code which can be
inserted in and removed from the running kernel whenever you want).
The module will be called ni5010.o. If you want to compile it as a
module, say M here and read Documentation/modules.txt as well as
Documentation/networking/net-modules.txt.
NI5210 support
CONFIG_NI52
If you have a network (Ethernet) card of this type, say Y and read
the Ethernet-HOWTO, available from
http://www.linuxdoc.org/docs.html#howto .
This driver is also available as a module ( = code which can be
inserted in and removed from the running kernel whenever you want).
The module will be called ni52.o. If you want to compile it as a
module, say M here and read Documentation/modules.txt as well as
Documentation/networking/net-modules.txt.
NI6510 support
CONFIG_NI65
If you have a network (Ethernet) card of this type, say Y and read
the Ethernet-HOWTO, available from
http://www.linuxdoc.org/docs.html#howto .
This driver is also available as a module ( = code which can be
inserted in and removed from the running kernel whenever you want).
The module will be called ni65.o. If you want to compile it as a
module, say M here and read Documentation/modules.txt as well as
Documentation/networking/net-modules.txt.
RealTek 8129/8139 (not 8019/8029!) support
CONFIG_RTL8139
This is a driver for the Fast Ethernet PCI network cards based on
the RTL8129 and RTL8139 chips. If you have one of those, say Y and
read the Ethernet-HOWTO, available from
http://www.linuxdoc.org/docs.html#howto .
If you want to compile this driver as a module ( = code which can be
inserted in and removed from the running kernel whenever you want),
say M here and read Documentation/modules.txt. This is recommended.
The module will be called rtl8139.o.
SiS 900 PCI Fast Ethernet Adapter support
CONFIG_SIS900
This is a driver for the Fast Ethernet PCI network cards based on
the SiS 900 and SiS 7016 chips. The SiS 900 core is also embedded in
SiS 630 and SiS 540 chipsets. If you have one of those, say Y and
read the Ethernet-HOWTO, available via FTP (user: anonymous) in
ftp://metalab.unc.edu/pub/Linux/docs/HOWTO. Please read
Documentation/networking/sis900.txt and comments at the beginning
of drivers/net/sis900.c for more information.
This driver also supports AMD 79C901 HomePNA such that you can use
your phone line as network cable.
If you want to compile this driver as a module ( = code which can be
inserted in and removed from the running kernel whenever you want),
say M here and read Documentation/modules.txt. This is recommended.
The module will be called sis900.o.
Packet Engines Yellowfin Gigabit-NIC support
CONFIG_YELLOWFIN
Say Y here if you have a Packet Engines G-NIC PCI Gigabit Ethernet
adapter. This adapter is used by the Beowulf Linux cluster project.
See http://cesdis.gsfc.nasa.gov/linux/drivers/yellowfin.html for
more information about this driver in particular and Beowulf in
general.
If you want to compile this driver as a module ( = code which can be
inserted in and removed from the running kernel whenever you want),
say M here and read Documentation/modules.txt. This is recommended.
The module will be called yellowfin.o.
General Instruments Surfboard 1000
CONFIG_NET_SB1000
This is a driver for the General Instrument (also known as
NextLevel) SURFboard 1000 internal
cable modem. This is an ISA card which is used by a number of cable
TV companies to provide cable modem access. It's a one-way
downstream-only cable modem, meaning that your upstream net link is
provided by your regular phone modem.
At present this driver only compiles as a module, so say M here if
you have this card. The module will be called sb1000.o. Then read
Documentation/networking/README.sb1000 for information on how to use
this module, as it needs special ppp scripts for establishing a
connection. Further documentation and the necessary scripts can be
found at:
http://www.jacksonville.net/~fventuri/
http://home.adelphia.net/~siglercm/sb1000.html
http://linuxpower.cx/~cable/
If you don't have this card, of course say N.
Alteon AceNIC/3Com 3C985/NetGear GA620 Gigabit support
CONFIG_ACENIC
Say Y here if you have an Alteon AceNIC, 3Com 3C985(B), NetGear
GA620, SGI Gigabit or Farallon PN9000-SX PCI Gigabit Ethernet
adapter. The driver allows for using the Jumbo Frame option (9000
bytes/frame) however it requires that your switches can handle this
as well. To enable Jumbo Frames, add `mtu 9000' to your ifconfig
line.
If you want to compile this driver as a module ( = code which can be
inserted in and removed from the running kernel whenever you want),
say M here and read Documentation/modules.txt. This is recommended.
The module will be called acenic.o.
Omit support for older Tigon I based AceNICs
CONFIG_ACENIC_OMIT_TIGON_I
Say Y here if you only have Tigon II based AceNICs and want to leave
out support for the older Tigon I based cards which are no longer
being sold (ie. the original Alteon AceNIC and 3Com 3C985 (non B
version)). This will reduce the size of the driver object by
app. 100KB. If you are not sure whether your card is a Tigon I or a
Tigon II, say N here.
The safe and default value for this is N.
SysKonnect SK-98xx support
CONFIG_SK98LIN
Say Y here if you have a SysKonnect SK-98xx Gigabit Ethernet Server
Adapter. The following adapters are supported by this driver:
- SK-9841 (single link 1000Base-LX)
- SK-9842 (dual link 1000Base-LX)
- SK-9843 (single link 1000Base-SX)
- SK-9844 (dual link 1000Base-SX)
- SK-9821 (single link 1000Base-T)
- SK-9822 (dual link 1000Base-T)
The dual link adapters support a link-failover feature.
Read Documentation/networking/sk98lin.txt for information about
optional driver parameters.
Questions concerning this driver may be addressed to:
linux@syskonnect.de
If you want to compile this driver as a module ( = code which can be
inserted in and removed from the running kernel whenever you want),
say M here and read Documentation/modules.txt. This is recommended.
The module will be called sk98lin.o.
AMD LANCE and PCnet (AT1500 and NE2100) support
CONFIG_LANCE
If you have a network (Ethernet) card of this type, say Y and read
the Ethernet-HOWTO, available from
http://www.linuxdoc.org/docs.html#howto . Some LinkSys cards are
of this type.
If you want to compile this driver as a module ( = code which can be
inserted in and removed from the running kernel whenever you want),
say M here and read Documentation/modules.txt. This is recommended.
The module will be called lance.o.
3COM cards
CONFIG_NET_VENDOR_3COM
If you have a network (Ethernet) card belonging to this class, say Y
and read the Ethernet-HOWTO, available from
http://www.linuxdoc.org/docs.html#howto .
Note that the answer to this question doesn't directly affect the
kernel: saying N will just cause this configure script to skip all
the questions about 3COM cards. If you say Y, you will be asked for
your specific card in the following questions.
3c501 support
CONFIG_EL1
If you have a network (Ethernet) card of this type, say Y and read
the Ethernet-HOWTO, available from
http://www.linuxdoc.org/docs.html#howto . Also, consider buying a
new card, since the 3c501 is slow, broken, and obsolete: you will
have problems. Some people suggest to ping ("man ping") a nearby
machine every minute ("man cron") when using this card.
This driver is also available as a module ( = code which can be
inserted in and removed from the running kernel whenever you want).
The module will be called 3c501.o. If you want to compile it as a
module, say M here and read Documentation/modules.txt as well as
Documentation/networking/net-modules.txt.
3c503 support
CONFIG_EL2
If you have a network (Ethernet) card of this type, say Y and read
the Ethernet-HOWTO, available from
http://www.linuxdoc.org/docs.html#howto .
This driver is also available as a module ( = code which can be
inserted in and removed from the running kernel whenever you want).
The module will be called 3c503.o. If you want to compile it as a
module, say M here and read Documentation/modules.txt as well as
Documentation/networking/net-modules.txt.
3c505 support
CONFIG_ELPLUS
Information about this network (Ethernet) card can be found in
Documentation/networking/3c505.txt. If you have a card of this type,
say Y and read the Ethernet-HOWTO, available from
http://www.linuxdoc.org/docs.html#howto .
If you want to compile this as a module ( = code which can be
inserted in and removed from the running kernel whenever you want),
say M here and read Documentation/modules.txt as well as
Documentation/networking/net-modules.txt. The module will be called
3c505.o.
3c507 support (EXPERIMENTAL)
CONFIG_EL16
If you have a network (Ethernet) card of this type, say Y and read
the Ethernet-HOWTO, available from
http://www.linuxdoc.org/docs.html#howto .
This driver is also available as a module ( = code which can be
inserted in and removed from the running kernel whenever you want).
The module will be called 3c507.o. If you want to compile it as a
module, say M here and read Documentation/modules.txt as well as
Documentation/networking/net-modules.txt.
3c523 support
CONFIG_ELMC
If you have a network (Ethernet) card of this type, say Y and read
the Ethernet-HOWTO, available from
http://www.linuxdoc.org/docs.html#howto .
This driver is also available as a module ( = code which can be
inserted in and removed from the running kernel whenever you want).
The module will be called 3c523.o. If you want to compile it as a
module, say M here and read Documentation/modules.txt as well as
Documentation/networking/net-modules.txt.
3c527 support
CONFIG_ELMC_II
If you have a network (Ethernet) card of this type, say Y and read
the Ethernet-HOWTO, available from
http://www.linuxdoc.org/docs.html#howto .
This driver is also available as a module ( = code which can be
inserted in and removed from the running kernel whenever you want).
The module will be called 3c527.o. If you want to compile it as a
module, say M here and read Documentation/modules.txt as well as
Documentation/networking/net-modules.txt.
3c509/3c579 support
CONFIG_EL3
If you have a network (Ethernet) card belonging to the 3Com
EtherLinkIII series, say Y and read the Ethernet-HOWTO, available
from http://www.linuxdoc.org/docs.html#howto .
If your card is not working you may need to use the DOS
setup disk to disable Plug & Play mode, and to select the default
media type.
If you want to compile this as a module ( = code which can be
inserted in and removed from the running kernel whenever you want),
say M here and read Documentation/modules.txt as well as
Documentation/networking/net-modules.txt. The module will be called
3c509.o.
3c590 series (592/595/597) "Vortex" support
CONFIG_VORTEX
If you have a 3Com "Vortex" (Fast EtherLink 3c590/3c592/3c595/3c597)
or "Boomerang" series (EtherLink XL 3c900 or 3c905) network
(Ethernet) card, say Y and read the Ethernet-HOWTO, available from
http://www.linuxdoc.org/docs.html#howto . More specific
information is in Documentation/networking/vortex.txt and in the
comments at the beginning of drivers/net/3c59x.c.
If you want to compile this as a module ( = code which can be
inserted in and removed from the running kernel whenever you want),
say M here and read Documentation/modules.txt as well as
Documentation/networking/net-modules.txt.
Other ISA cards
CONFIG_NET_ISA
If your network (Ethernet) card hasn't been mentioned yet and its
bus system (that's the way the cards talks to the other components
of your computer) is ISA (as opposed to EISA, VLB or PCI), say Y.
Make sure you know the name of your card. Read the Ethernet-HOWTO,
available from http://www.linuxdoc.org/docs.html#howto .
If unsure, say Y.
Note that the answer to this question doesn't directly affect the
kernel: saying N will just cause this configure script to skip all
the remaining ISA network card questions. If you say Y, you will be
asked for your specific card in the following questions.
Generic ARCnet support
CONFIG_ARCNET
If you have a network card of this type, say Y and check out the
(arguably) beautiful poetry in Documentation/networking/arcnet.txt.
You need both this driver, and the driver for the particular ARCnet
chipset of your card. If you don't know, then it's probably a
COM90xx type card, so say Y (or M) to "ARCnet COM90xx chipset
support" below.
You might also want to have a look at the Ethernet-HOWTO, available
from http://www.linuxdoc.org/docs.html#howto (even though ARCnet
is not really Ethernet).
This driver is also available as a module ( = code which can be
inserted in and removed from the running kernel whenever you want).
The module will be called arcnet.o. If you want to compile it as a
module, say M here and read Documentation/modules.txt as well as
Documentation/networking/net-modules.txt.
Enable arc0e (ARCnet "ether-encap" packet format)
CONFIG_ARCNET_ETH
This allows you to use "Ethernet encapsulation" with your ARCnet
card via the virtual arc0e device. You only need arc0e if you want
to talk to nonstandard ARCnet software, specifically,
DOS/Windows-style "NDIS" drivers. You do not need to say Y here to
communicate with industry-standard RFC1201 implementations, like the
arcether.com packet driver or most DOS/Windows ODI drivers. RFC1201
is included automatically as the arc0 device. Please read the
ARCnet documentation in Documentation/networking/arcnet.txt for more
information about using arc0e and arc0s.
Enable arc0s (ARCnet RFC1051 packet format)
CONFIG_ARCNET_1051
This allows you to use RFC1051 with your ARCnet card via the virtual
arc0s device. You only need arc0s if you want to talk to ARCnet
software complying with the "old" standard, specifically, the DOS
arcnet.com packet driver, Amigas running AmiTCP, and some variants
of NetBSD. You do not need to say Y here to communicate with
industry-standard RFC1201 implementations, like the arcether.com
packet driver or most DOS/Windows ODI drivers. RFC1201 is included
automatically as the arc0 device. Please read the ARCnet
documentation in Documentation/networking/arcnet.txt for more
information about using arc0e and arc0s.
ARCnet COM90xx (normal) chipset driver
CONFIG_ARCNET_COM90xx
This is the chipset driver for the standard COM90xx cards. If you
have always used the old ARCnet driver without knowing what type of
card you had, this is probably the one for you.
This driver is also available as a module ( = code which can be
inserted in and removed from the running kernel whenever you want).
The module will be called com90xx.o. If you want to compile it as a
module, say M here and read Documentation/modules.txt as well as
Documentation/networking/net-modules.txt.
ARCnet COM90xx (IO mapped) chipset driver
CONFIG_ARCNET_COM90xxIO
This is the chipset driver for the COM90xx cards, using them in
IO-mapped mode instead of memory-mapped mode. This is slower than
the normal driver. Only use it if your card doesn't support shared
memory.
This driver is also available as a module ( = code which can be
inserted in and removed from the running kernel whenever you want).
The module will be called com90io.o. If you want to compile it as a
module, say M here and read Documentation/modules.txt as well as
Documentation/networking/net-modules.txt.
ARCnet COM90xx (RIM I) chipset driver
CONFIG_ARCNET_RIM_I
This is yet another chipset driver for the COM90xx cards, but this
time only using memory-mapped mode, and no IO ports at all. This
driver is completely untested, so if you have one of these cards,
please mail David.Woodhouse@mvhi.com, especially if it works!
This driver is also available as a module ( = code which can be
inserted in and removed from the running kernel whenever you
want). The module will be called arc-rimi.o. If you want to compile
it as a module, say M here and read Documentation/modules.txt as
well as Documentation/networking/net-modules.txt.
ARCnet COM20020 chipset driver
CONFIG_ARCNET_COM20020
This is the driver for the new COM20020 chipset. It supports such
things as promiscuous mode, so packet sniffing is possible, and
extra diagnostic information.
This driver is also available as a module ( = code which can be
inserted in and removed from the running kernel whenever you want).
The module will be called com20020.o. If you want to compile it as a
module, say M here and read Documentation/modules.txt as well as
Documentation/networking/net-modules.txt.
Cabletron E21xx support
CONFIG_E2100
If you have a network (Ethernet) card of this type, say Y and read
the Ethernet-HOWTO, available from
http://www.linuxdoc.org/docs.html#howto .
This driver is also available as a module ( = code which can be
inserted in and removed from the running kernel whenever you want).
The module will be called e2100.o. If you want to compile it as a
module, say M here and read Documentation/modules.txt as well as
Documentation/networking/net-modules.txt.
CS89x0 support
CONFIG_CS89x0
Support for CS89x0 chipset based Ethernet cards. If you have a
network (Ethernet) card of this type, say Y and read the
Ethernet-HOWTO, available from
http://www.linuxdoc.org/docs.html#howto as well as
Documentation/networking/cs89x0.txt.
If you want to compile this as a module ( = code which can be
inserted in and removed from the running kernel whenever you want),
say M here and read Documentation/modules.txt as well as
Documentation/networking/net-modules.txt. The module will be called
cs89x.o.
DEPCA support
CONFIG_DEPCA
If you have a network (Ethernet) card of this type, say Y and read
the Ethernet-HOWTO, available from
http://www.linuxdoc.org/docs.html#howto as well as
drivers/net/depca.c.
If you want to compile this as a module ( = code which can be
inserted in and removed from the running kernel whenever you want),
say M here and read Documentation/modules.txt as well as
Documentation/networking/net-modules.txt. The module will be called
depca.o.
EtherWorks 3 support
CONFIG_EWRK3
This driver supports the DE203, DE204 and DE205 network (Ethernet)
cards. If this is for you, say Y and read
Documentation/networking/ewrk3.txt in the kernel source as well as
the Ethernet-HOWTO, available from
http://www.linuxdoc.org/docs.html#howto .
If you want to compile this as a module ( = code which can be
inserted in and removed from the running kernel whenever you want),
say M here and read Documentation/modules.txt as well as
Documentation/networking/net-modules.txt. The module will be called
ewrk3.o.
SEEQ8005 support
CONFIG_SEEQ8005
This is a driver for the SEEQ 8005 network (Ethernet) card. If this
is for you, read the Ethernet-HOWTO, available from
http://www.linuxdoc.org/docs.html#howto .
If you want to compile this as a module ( = code which can be
inserted in and removed from the running kernel whenever you want),
say M here and read Documentation/modules.txt as well as
Documentation/networking/net-modules.txt. The module will be called
ewrk3.o.
AT1700/1720 support
CONFIG_AT1700
If you have a network (Ethernet) card of this type, say Y and read
the Ethernet-HOWTO, available from
http://www.linuxdoc.org/docs.html#howto .
This driver is also available as a module ( = code which can be
inserted in and removed from the running kernel whenever you want).
If you want to compile it as a module, say M here and read
Documentation/modules.txt as well as
Documentation/networking/net-modules.txt. The module will be called
at1700.o.
FMV-181/182/183/184 support
CONFIG_FMV18X
If you have a Fujitsu FMV-181/182/183/184 network (Ethernet) card,
say Y and read the Ethernet-HOWTO, available from
http://www.linuxdoc.org/docs.html#howto .
If you use an FMV-183 or FMV-184 and it is not working, you may need
to disable Plug & Play mode of the card.
This driver is also available as a module ( = code which can be
inserted in and removed from the running kernel whenever you want).
The module will be called fmv18x.o. If you want to compile it as a
module, say M here and read Documentation/modules.txt as well as
Documentation/networking/net-modules.txt.
EtherExpress PRO support
CONFIG_EEXPRESS_PRO
If you have a network (Ethernet) card of this type, say Y. Note
however that the EtherExpress PRO/100 Ethernet card has its own
separate driver. Please read the Ethernet-HOWTO, available from
http://www.linuxdoc.org/docs.html#howto .
This driver is also available as a module ( = code which can be
inserted in and removed from the running kernel whenever you want).
The module will be called eepro.o. If you want to compile it as a
module, say M here and read Documentation/modules.txt as well as
Documentation/networking/net-modules.txt.
EtherExpress support
CONFIG_EEXPRESS
If you have an EtherExpress16 network (Ethernet) card, say Y and
read the Ethernet-HOWTO, available from
http://www.linuxdoc.org/docs.html#howto . Note that the Intel
EtherExpress16 card used to be regarded as a very poor choice
because the driver was very unreliable. We now have a new driver
that should do better.
If you want to compile this driver as a module ( = code which can be
inserted in and removed from the running kernel whenever you want),
say M here and read Documentation/modules.txt as well as
Documentation/networking/net-modules.txt. The module will be called
eexpress.o.
HP PCLAN+ (27247B and 27252A) support
CONFIG_HPLAN_PLUS
If you have a network (Ethernet) card of this type, say Y and read
the Ethernet-HOWTO, available from
http://www.linuxdoc.org/docs.html#howto .
This driver is also available as a module ( = code which can be
inserted in and removed from the running kernel whenever you want).
The module will be called hp-plus.o. If you want to compile it as a
module, say M here and read Documentation/modules.txt as well as
Documentation/networking/net-modules.txt.
HP PCLAN (27245 and other 27xxx series) support
CONFIG_HPLAN
If you have a network (Ethernet) card of this type, say Y and read
the Ethernet-HOWTO, available from
http://www.linuxdoc.org/docs.html#howto .
This driver is also available as a module ( = code which can be
inserted in and removed from the running kernel whenever you want).
The module will be called hp.o. If you want to compile it as a
module, say M here and read Documentation/modules.txt as well as
Documentation/networking/net-modules.txt.
HP 10/100VG PCLAN (ISA, EISA, PCI) support
CONFIG_HP100
If you have a network (Ethernet) card of this type, say Y and read
the Ethernet-HOWTO, available from
http://www.linuxdoc.org/docs.html#howto .
If you want to compile this as a module ( = code which can be
inserted in and removed from the running kernel whenever you want),
say M here and read Documentation/modules.txt as well as
Documentation/networking/net-modules.txt. The module will be called
hp100.o.
NE2000/NE1000 support
CONFIG_NE2000
If you have a network (Ethernet) card of this type, say Y and read
the Ethernet-HOWTO, available from
http://www.linuxdoc.org/docs.html#howto . Many Ethernet cards
without a specific driver are compatible with NE2000.
If you have a PCI NE2000 card however, say N here and Y to "PCI
NE2000 support", above. If you have a NE2000 card and are running on
an MCA system (a bus system used on some IBM PS/2 computers and
laptops), say N here and Y to "NE/2 (ne2000 MCA version) support",
below.
This driver is also available as a module ( = code which can be
inserted in and removed from the running kernel whenever you want).
The module will be called ne.o. If you want to compile it as a
module, say M here and read Documentation/modules.txt as well as
Documentation/networking/net-modules.txt.
SK_G16 support
CONFIG_SK_G16
If you have a network (Ethernet) card of this type, say Y and read
the Ethernet-HOWTO, available from
http://www.linuxdoc.org/docs.html#howto .
NE/2 (ne2000 MCA version) support
CONFIG_NE2_MCA
If you have a network (Ethernet) card of this type, say Y and read
the Ethernet-HOWTO, available from
http://www.linuxdoc.org/docs.html#howto .
This driver is also available as a module ( = code which can be
inserted in and removed from the running kernel whenever you want).
The module will be called ne2.o. If you want to compile it as a
module, say M here and read Documentation/modules.txt as well as
Documentation/networking/net-modules.txt.
SKnet MCA support
CONFIG_SKMC
These are Micro Channel ethernet adapters. You need to say Y to "MCA
support" in order to use this driver. Supported cards are the SKnet
Junior MC2 and the SKnet MC2(+). The driver automatically
distinguishes between the two cards. Note that using multiple boards
of different type hasn't been tested with this driver. Say Y if you
have one of these ethernet adapters.
This driver is also available as a module ( = code which can be
inserted in and removed from the running kernel whenever you want).
The module is called sk_mca.o. If you want to compile it as a
module, say M here and read Documentation/modules.txt as well as
Documentation/networking/net-modules.txt.
EISA, VLB, PCI and on board controllers
CONFIG_NET_EISA
This is another class of network cards which attach directly to the
bus. If you have one of those, say Y and read the Ethernet-HOWTO,
available from http://www.linuxdoc.org/docs.html#howto .
Note that the answer to this question doesn't directly affect the
kernel: saying N will just cause this configure script to skip all
the questions about this class of network cards. If you say Y, you
will be asked for your specific card in the following questions. If
you are unsure, say Y.
AMD PCnet32 (VLB and PCI) support
CONFIG_PCNET32
If you have a PCnet32 or PCnetPCI based network (Ethernet) card,
answer Y here and read the Ethernet-HOWTO, available from
http://www.linuxdoc.org/docs.html#howto .
This driver is also available as a module ( = code which can be
inserted in and removed from the running kernel whenever you want).
The module will be called pcnet32.o. If you want to compile it as a
module, say M here and read Documentation/modules.txt as well as
Documentation/networking/net-modules.txt.
Ansel Communications EISA 3200 support
CONFIG_AC3200
If you have a network (Ethernet) card of this type, say Y and read
the Ethernet-HOWTO, available from
http://www.linuxdoc.org/docs.html#howto .
This driver is also available as a module ( = code which can be
inserted in and removed from the running kernel whenever you want).
The module will be called ac3200.o. If you want to compile it as a
module, say M here and read Documentation/modules.txt as well as
Documentation/networking/net-modules.txt.
Mylex EISA LNE390A/LNE390B support (EXPERIMENTAL)
CONFIG_LNE390
If you have a network (Ethernet) card of this type, say Y and read
the Ethernet-HOWTO, available from
http://www.linuxdoc.org/docs.html#howto .
This driver is also available as a module ( = code which can be
inserted in and removed from the running kernel whenever you want).
The module will be called lne390.o. If you want to compile it as a
module, say M here and read Documentation/modules.txt as well as
Documentation/networking/net-modules.txt.
Novell/Eagle/Microdyne NE3210 EISA support (EXPERIMENTAL)
CONFIG_NE3210
If you have a network (Ethernet) card of this type, say Y and read
the Ethernet-HOWTO, available from
http://www.linuxdoc.org/docs.html#howto . Note that this driver
will NOT WORK for NE3200 cards as they are completely different.
This driver is also available as a module ( = code which can be
inserted in and removed from the running kernel whenever you want).
The module will be called ne3210.o. If you want to compile it as a
module, say M here and read Documentation/modules.txt as well as
Documentation/networking/net-modules.txt.
Apricot Xen-II on board Ethernet
CONFIG_APRICOT
If you have a network (Ethernet) controller of this type, say Y and
read the Ethernet-HOWTO, available from
http://www.linuxdoc.org/docs.html#howto .
If you want to compile this as a module ( = code which can be
inserted in and removed from the running kernel whenever you want),
say M here and read Documentation/modules.txt as well as
Documentation/networking/net-modules.txt. The module will be called
apricot.o.
Generic DECchip & DIGITAL EtherWORKS PCI/EISA
CONFIG_DE4X5
This is support for the DIGITAL series of PCI/EISA Ethernet cards.
These include the DE425, DE434, DE435, DE450 and DE500 models. If
you have a network card of this type, say Y and read the
Ethernet-HOWTO, available from
http://www.linuxdoc.org/docs.html#howto . More specific
information is contained in Documentation/networking/de4x5.txt.
This driver is also available as a module ( = code which can be
inserted in and removed from the running kernel whenever you want).
The module will be called de4x5.o. If you want to compile it as a
module, say M here and read Documentation/modules.txt as well as
Documentation/networking/net-modules.txt.
DECchip Tulip (dc21x4x) PCI support
CONFIG_TULIP
This driver is developed for the SMC EtherPower series Ethernet
cards and also works with cards based on the DECchip
21040/21041/21140 (Tulip series) chips. Some LinkSys PCI cards are
of this type. (If your card is NOT SMC EtherPower 10/100 PCI
(smc9332dst), you can also try the driver for "Generic DECchip"
cards, above. However, most people with a network card of this type
will say Y here.) Do read the Ethernet-HOWTO, available from
http://www.linuxdoc.org/docs.html#howto . More specific
information is contained in Documentation/networking/tulip.txt.
This driver is also available as a module ( = code which can be
inserted in and removed from the running kernel whenever you want).
The module will be called tulip.o. If you want to compile it as a
module, say M here and read Documentation/modules.txt as well as
Documentation/networking/net-modules.txt.
Digi Intl. RightSwitch support
CONFIG_DGRS
This is support for the Digi International RightSwitch series of
PCI/EISA Ethernet switch cards. These include the SE-4 and the SE-6
models. If you have a network card of this type, say Y and read the
Ethernet-HOWTO, available from
http://www.linuxdoc.org/docs.html#howto . More specific
information is contained in Documentation/networking/dgrs.txt.
This driver is also available as a module ( = code which can be
inserted in and removed from the running kernel whenever you want).
The module will be called dgrs.o. If you want to compile it as a
module, say M here and read Documentation/modules.txt as well as
Documentation/networking/net-modules.txt.
EtherExpress PRO/100 support
CONFIG_EEXPRESS_PRO100
If you have an Intel EtherExpress PRO/100 PCI network (Ethernet)
card, say Y and read the Ethernet-HOWTO, available from
http://www.linuxdoc.org/docs.html#howto .
This driver is also available as a module ( = code which can be
inserted in and removed from the running kernel whenever you want).
The module will be called eepro100.o. If you want to compile it as a
module, say M here and read Documentation/modules.txt as well as
Documentation/networking/net-modules.txt.
ICL EtherTeam 16i/32 support (EXPERIMENTAL)
CONFIG_ETH16I
If you have a network (Ethernet) card of this type, say Y and read
the Ethernet-HOWTO, available from
http://www.linuxdoc.org/docs.html#howto .
This driver is also available as a module ( = code which can be
inserted in and removed from the running kernel whenever you want).
The module will be called eth16i.o. If you want to compile it as a
module, say M here and read Documentation/modules.txt as well as
Documentation/networking/net-modules.txt.
TI ThunderLAN support (EXPERIMENTAL)
CONFIG_TLAN
If you have a PCI Ethernet network card based on the ThunderLAN chip
which is supported by this driver, say Y and read the
Ethernet-HOWTO, available from
http://www.linuxdoc.org/docs.html#howto .
Devices currently supported by this driver are Compaq Netelligent,
Compaq NetFlex and Olicom cards. Please read the file
Documentation/networking/tlan.txt for more details.
This driver is also available as a module ( = code which can be
inserted in and removed from the running kernel whenever you want).
The module will be called tlan.o. If you want to compile it as a
module, say M here and read Documentation/modules.txt as well as
Documentation/networking/net-modules.txt.
Please email feedback to torben.mathiasen@compaq.com.
VIA Rhine support
CONFIG_VIA_RHINE
If you have a VIA "rhine" based network card (Rhine-I (3043) or
Rhine-2 (VT86c100A)), say Y here.
This driver is also available as a module ( = code which can be
inserted in and removed from the running kernel whenever you want).
The module will be called via-rhine.o. If you want to compile it as
a module, say M here and read Documentation/modules.txt as well as
Documentation/networking/net-modules.txt.
Racal-Interlan EISA ES3210 support (EXPERIMENTAL)
CONFIG_ES3210
If you have a network (Ethernet) card of this type, say Y and read
the Ethernet-HOWTO, available from
http://www.linuxdoc.org/docs.html#howto .
This driver is also available as a module ( = code which can be
inserted in and removed from the running kernel whenever you want).
The module will be called es3210.o. If you want to compile it as a
module, say M here and read Documentation/modules.txt as well as
Documentation/networking/net-modules.txt.
SMC EtherPower II (EXPERIMENTAL)
CONFIG_EPIC100
If you have an SMC EtherPower II 9432 PCI Ethernet network card
which is based on the SMC83c170, say Y and read the Ethernet-HOWTO,
available from http://www.linuxdoc.org/docs.html#howto .
This driver is also available as a module ( = code which can be
inserted in and removed from the running kernel whenever you want).
The module will be called epic100.o. If you want to compile it as a
module, say M here and read Documentation/modules.txt as well as
Documentation/networking/net-modules.txt.
SGI Seeq ethernet controller support
CONFIG_SGISEEQ
Say Y here if you have an Seeq based Ethernet network card. This is
used in many Silicon Graphics machines.
Zenith Z-Note support (EXPERIMENTAL)
CONFIG_ZNET
The Zenith Z-Note notebook computer has a built-in network
(Ethernet) card, and this is the Linux driver for it. Note that the
IBM Thinkpad 300 is compatible with the Z-Note and is also supported
by this driver. Read the Ethernet-HOWTO, available from
http://www.linuxdoc.org/docs.html#howto .
Adaptec Starfire support
CONFIG_ADAPTEC_STARFIRE
If you have an Ethernet network card like this, say Y and read the
Ethernet-HOWTO, available from
http://www.linuxdoc.org/docs.html#howto .
This driver is also available as a module ( = code which can be
inserted in and removed from the running kernel whenever you want).
The module will be called starfire.o. If you want to compile it as a
module, say M here and read Documentation/modules.txt as well as
Documentation/networking/net-modules.txt.
Pocket and portable adapters
CONFIG_NET_POCKET
Cute little network (Ethernet) devices which attach to the parallel
port ("pocket adapters"), commonly used with laptops. If you have
one of those, say Y and read the Ethernet-HOWTO, available from
http://www.linuxdoc.org/docs.html#howto .
If you want to plug a network (or some other) card into the PCMCIA
(or PC-card) slot of your laptop instead (PCMCIA is the standard for
credit card size extension cards used by all modern laptops), you
need the pcmcia-cs package (location contained in the file
Documentation/Changes) and you can say N here.
Laptop users should read the Linux Laptop home page at
http://www.cs.utexas.edu/users/kharker/linux-laptop/ .
Note that the answer to this question doesn't directly affect the
kernel: saying N will just cause this configure script to skip all
the questions about this class of network devices. If you say Y, you
will be asked for your specific device in the following questions.
AT-LAN-TEC/RealTek pocket adapter support
CONFIG_ATP
This is a network (Ethernet) device which attaches to your parallel
port. Read drivers/net/atp.c as well as the Ethernet-HOWTO,
available from http://www.linuxdoc.org/docs.html#howto , if you
want to use this. If you intend to use this driver, you should have
said N to the Parallel Printer support, because the two drivers
don't like each other.
D-Link DE600 pocket adapter support
CONFIG_DE600
This is a network (Ethernet) device which attaches to your parallel
port. Read Documentation/networking/DLINK.txt as well as the
Ethernet-HOWTO, available from
http://www.linuxdoc.org/docs.html#howto , if you want to use
this. It is possible to have several devices share a single parallel
port and it is safe to compile the corresponding drivers into the
kernel.
If you want to compile this driver as a module however ( = code
which can be inserted in and removed from the running kernel
whenever you want), say M here and read Documentation/modules.txt.
The module will be called de600.o.
D-Link DE620 pocket adapter support
CONFIG_DE620
This is a network (Ethernet) device which attaches to your parallel
port. Read Documentation/networking/DLINK.txt as well as the
Ethernet-HOWTO, available from
http://www.linuxdoc.org/docs.html#howto , if you want to use
this. It is possible to have several devices share a single parallel
port and it is safe to compile the corresponding drivers into the
kernel.
If you want to compile this driver as a module however ( = code
which can be inserted in and removed from the running kernel
whenever you want), say M here and read Documentation/modules.txt.
The module will be called de620.o.
Token Ring driver support
CONFIG_TR
Token Ring is IBM's way of communication on a local network; the
rest of the world uses Ethernet. To participate on a Token Ring
network, you need a special Token ring network card. If you are
connected to such a Token Ring network and want to use your Token
Ring card under Linux, say Y here and to the driver for your
particular card below and read the Token-Ring mini-HOWTO, available
from http://www.linuxdoc.org/docs.html#howto . Most people can
say N here.
IBM Tropic chipset based adapter support
CONFIG_IBMTR
This is support for all IBM Token Ring cards that don't use DMA. If
you have such a beast, say Y and read the Token-Ring mini-HOWTO,
available from http://www.linuxdoc.org/docs.html#howto .
Warning: this driver will almost definitely fail if more than one
active Token Ring card is present.
This driver is also available as a module ( = code which can be
inserted in and removed from the running kernel whenever you want).
The module will be called ibmtr.o. If you want to compile it as a
module, say M here and read Documentation/modules.txt.
IBM Olympic chipset PCI adapter support
CONFIG_IBMOL
This is support for all non-Lanstreamer IBM PCI Token Ring Cards.
Specifically this is all IBM PCI, PCI Wake On Lan, PCI II, PCI II
Wake On Lan, and PCI 100/16/4 adapters.
If you have such an adapter, say Y and read the Token-Ring
mini-HOWTO, available from
http://www.linuxdoc.org/docs.html#howto .
This driver is also available as a module ( = code which can be
inserted in and removed from the running kernel whenever you want).
The module will will be called olympic.o. If you want to compile it
as a module, say M here and read Documentation/modules.txt.
Also read the file Documentation/networking/olympic.txt or check the
Linux Token Ring Project site for the latest information at
http://www.linuxtr.net
Generic TMS380 Token Ring ISA/PCI/MCA/EISA adapter support
CONFIG_TMS380TR
This driver provides generic support for token ring adapters
based on the Texas Instruments TMS380 series chipsets. This
includes the SysKonnect TR4/16(+) ISA (SK-4190), SysKonnect
TR4/16(+) PCI (SK-4590), SysKonnect TR4/16 PCI (SK-4591),
Compaq 4/16 PCI, Thomas-Conrad TC4048 4/16 PCI, and several
Madge adapters. If selected, you will be asked to select
which cards to support below. If you're using modules, each
class of card will be supported by a separate module.
If you have such an adapter and would like to use it, say Y or M and
read the Token-Ring mini-HOWTO, available from
http://www.linuxdoc.org/docs.html#howto .
Also read the file linux/Documentation/networking/tms380tr.txt or check
http://www.auk.cx/tms380tr/
Generic TMS380 PCI support
CONFIG_TMSPCI
This tms380 module supports generic TMS380-based PCI cards.
These cards are known to work:
- Compaq 4/16 TR PCI
- SysKonnect TR4/16 PCI (SK-4590/SK-4591)
- Thomas-Conrad TC4048 PCI 4/16
- 3Com Token Link Velocity
Madge Smart 16/4 PCI Mk2 support
CONFIG_ABYSS
This tms380 module supports the Madge Smart 16/4 PCI Mk2 cards (51-02).
Madge Smart 16/4 Ringode MicroChannel
CONFIG_MADGEMC
This tms380 module supports the Madge Smart 16/4 MC16 and MC32
MicroChannel adapters
SMC ISA TokenRing adapter support
CONFIG_SMCTR
This is support for the ISA and MCA SMC Token Ring cards, specifically
SMC TokenCard Elite (8115T) and SMC TokenCard Elite/A (8115T/A) adapters.
If you have such an adapter and would like to use it, say Y or M and
read the Token-Ring mini-HOWTO, available from
http://www.linuxdoc.org/docs.html#howto .
Traffic Shaper (EXPERIMENTAL)
CONFIG_SHAPER
The traffic shaper is a virtual network device that allows you to
limit the rate of outgoing data flow over some other network device.
The traffic that you want to slow down can then be routed through
these virtual devices. See Documentation/networking/shaper.txt for
more information.
An alternative to this traffic shaper is the experimental
Class-Based Queueing (CBQ) scheduling support which you get if you
say Y to "QoS and/or fair queueing" above.
To set up and configure shaper devices, you need the shapecfg
program, available from ftp://shadow.cabi.net/pub/Linux in the
shaper package.
This driver is also available as a module ( = code which can be
inserted in and removed from the running kernel whenever you want).
The module will be called shaper.o. If you want to compile it as a
module, say M here and read Documentation/modules.txt. If unsure,
say N.
FDDI driver support
CONFIG_FDDI
Fiber Distributed Data Interface is a high speed local area network
design; essentially a replacement for high speed Ethernet. FDDI can
run over copper or fiber. If you are connected to such a network and
want a driver for the FDDI card in your computer, say Y here (and
then also Y to the driver for your FDDI card, below). Most people
will say N.
Digital DEFEA and DEFPA adapter support
CONFIG_DEFXX
This is support for the DIGITAL series of EISA (DEFEA) and PCI
(DEFPA) controllers which can connect you to a local FDDI network.
SysKonnect FDDI PCI support
CONFIG_SKFP
Say Y here if you have a SysKonnect FDDI PCI adapter.
The following adapters are supported by this driver:
- SK-5521 (SK-NET FDDI-UP)
- SK-5522 (SK-NET FDDI-UP DAS)
- SK-5541 (SK-NET FDDI-FP)
- SK-5543 (SK-NET FDDI-LP)
- SK-5544 (SK-NET FDDI-LP DAS)
- SK-5821 (SK-NET FDDI-UP64)
- SK-5822 (SK-NET FDDI-UP64 DAS)
- SK-5841 (SK-NET FDDI-FP64)
- SK-5843 (SK-NET FDDI-LP64)
- SK-5844 (SK-NET FDDI-LP64 DAS)
- Netelligent 100 FDDI DAS Fibre SC
- Netelligent 100 FDDI SAS Fibre SC
- Netelligent 100 FDDI DAS UTP
- Netelligent 100 FDDI SAS UTP
- Netelligent 100 FDDI SAS Fibre MIC
Read Documentation/networking/skfp.txt for information about
the driver.
WARNING: this driver does currently not support 64 bit systems!
Questions concerning this driver can be addressed to:
linux@syskonnect.de
If you want to compile this driver as a module ( = code which can be
inserted in and removed from the running kernel whenever you want),
say M here and read Documentation/modules.txt. This is recommended.
The module will be called skfp.o.
HIgh Performance Parallel Interface support (EXPERIMENTAL)
CONFIG_HIPPI
HIgh Performance Parallel Interface (HIPPI) is a 800Mbit/sec and
1600Mbit/sec dual-simplex switched or point-to-point network. HIPPI
can run over copper (25m) or fiber (300m on multi-mode or 10km on
single-mode). HIPPI networks are commonly used for clusters and to
connect to super computers. If you are connected to a HIPPI network
and have a HIPPI network card in your computer that you want to use
under Linux, say Y here (you must also remember to enable the driver
for your HIPPI card below). Most people will say N here.
Essential RoadRunner HIPPI PCI adapter support
CONFIG_ROADRUNNER
Say Y here if this is your PCI HIPPI network card.
This driver is also available as a module ( = code which can be
inserted in and removed from the running kernel whenever you want).
The module will be called rrunner.o. If you want to compile it as
a module, say M here and read Documentation/modules.txt. If unsure,
say N.
Use large TX/RX rings
CONFIG_ROADRUNNER_LARGE_RINGS
If you say Y here, the RoadRunner driver will preallocate up to 2 MB
of additional memory to allow for fastest operation, both for
transmitting and receiving. This memory cannot be used by any other
kernel code or by user space programs. Say Y here only if you have
the memory.
Acorn Ether1 card
CONFIG_ARM_ETHER1
If you have an Acorn system with one of these (AKA25) network cards,
you should say Y to this option if you wish to use it with Linux.
Acorn/ANT Ether3 card
CONFIG_ARM_ETHER3
If you have an Acorn system with one of these network cards, you
should say Y to this option if you wish to use it with Linux.
I Cubed EtherH card
CONFIG_ARM_ETHERH
If you have an Acorn system with one of these network cards, you
should say Y to this option if you wish to use it with Linux.
EBSA-110 Ethernet interface
CONFIG_ARM_AM79C961A
If you wish to compile a kernel for the EBSA-110, then you should
always answer Y to this.
Support CDROM drives that are not SCSI or IDE/ATAPI
CONFIG_CD_NO_IDESCSI
If you have a CDROM drive that is neither SCSI nor IDE/ATAPI, say Y
here, otherwise N. Read the CDROM-HOWTO, available from
http://www.linuxdoc.org/docs.html#howto .
Note that the answer to this question doesn't directly affect the
kernel: saying N will just cause this configure script to skip all
the questions about these CDROM drives. If you are unsure what you
have, say Y and find out whether you have one of the following
drives.
For each of these drivers, a file Documentation/cdrom/<driver_name>
exists. Especially in cases where you do not know exactly which kind
of drive you have you should read there. Most of these drivers use a
file drivers/cdrom/<driver_name>.h where you can define your
interface parameters and switch some internal goodies.
All these CDROM drivers are also usable as a module ( = code which
can be inserted in and removed from the running kernel whenever you
want). If you want to compile them as module, say M instead of Y and
read Documentation/modules.txt.
If you want to use any of these CDROM drivers, you also have to
answer Y or M to "ISO 9660 CDROM file systems support" below (this
answer will get "defaulted" for you if you enable any of the Linux
CDROM drivers).
Sony CDU31A/CDU33A CDROM support
CONFIG_CDU31A
These CDROM drives have a spring-pop-out caddyless drawer, and a
rectangular green LED centered beneath it. NOTE: these CDROM drives
will not be auto detected by the kernel at boot time; you have to
provide the interface address as an option to the kernel at boot
time as described in Documentation/cdrom/cdu31a or fill in your
parameters into drivers/cdrom/cdu31a.c. Try "man bootparam" or
see the documentation of your boot loader (lilo or loadlin) about
how to pass options to the kernel. The lilo procedure is also
explained in the SCSI-HOWTO.
If you say Y here, you should also say Y or M to "ISO 9660 CDROM
file systems support" below, because that's the file systems used on
CDROMs.
This driver is also available as a module ( = code which can be
inserted in and removed from the running kernel whenever you want).
The module will be called cdu31a.o. If you want to compile it as a
module, say M here and read Documentation/modules.txt.
Standard Mitsumi [no XA/Multisession] CDROM support
CONFIG_MCD
This is the older of the two drivers for the older Mitsumi models
LU-005, FX-001 and FX-001D. This is not the right driver for the
FX-001DE and the triple or quad speed models (all these are
IDE/ATAPI models). Please also the file Documentation/cdrom/mcd.
With the old LU-005 model, the whole drive chassis slides out for cd
insertion. The FX-xxx models use a motorized tray type mechanism.
Note that this driver does not support XA or MultiSession CDs
(PhotoCDs). There is a new driver (next question) which can do
this. If you want that one, say N here.
If you say Y here, you should also say Y or M to "ISO 9660 CDROM
file systems support" below, because that's the file systems used on
CDROMs.
This driver is also available as a module ( = code which can be
inserted in and removed from the running kernel whenever you want).
The module will be called mcd.o. If you want to compile it as a
module, say M here and read Documentation/modules.txt.
IRQ channel for Mitsumi CD-ROM
CONFIG_MCD_IRQ
This allows you to specify the default value of the IRQ used by the
driver. This setting can be overridden by passing the "mcd="
parameter to the kernel at boot time (or at module load time if you
said M to "Standard Mitsumi CDROM support").
I/O base address for Mitsumi CD-ROM
CONFIG_MCD_BASE
This allows you to specify the default value of the I/O base address
used by the driver. This setting can be overridden by passing the
"mcd=" parameter to the kernel at boot time (or at module load time
if you said M to "Standard Mitsumi CDROM support").
Mitsumi [XA/MultiSession] support
CONFIG_MCDX
Use this driver if you want to be able to read XA or MultiSession
CDs (PhotoCDs) as well as ordinary CDs with your Mitsumi LU-005,
FX-001 or FX-001D CDROM drive. In addition, this driver uses much
less kernel memory than the old one, if that is a concern. This
driver is able to support more than one drive, but each drive needs
a separate interface card. Please read the file
Documentation/cdrom/mcdx.
If you say Y here, you should also say Y or M to "ISO 9660 CDROM
file systems support" below, because that's the file systems used on
CDROMs.
This driver is also available as a module ( = code which can be
inserted in and removed from the running kernel whenever you want).
The module will be called mcdx.o. If you want to compile it as a
module, say M here and read Documentation/modules.txt.
Matsushita/Panasonic/Creative, Longshine, TEAC CDROM support
CONFIG_SBPCD
This driver supports most of the drives which use the Panasonic or
Sound Blaster interface. Please read the file
Documentation/cdrom/sbpcd.
The Matsushita CR-521, CR-522, CR-523, CR-562, CR-563 drives
(sometimes labeled "Creative"), the Creative Labs CD200, the
Longshine LCS-7260, the "IBM External ISA CDROM" (in fact a CR-56x
model), the TEAC CD-55A fall under this category. Some other
"electrically compatible" drives (Vertos, Genoa, some Funai models)
are currently not supported; for the Sanyo H94A drive currently a
separate driver (asked later) is responsible. Most drives have a
uniquely shaped faceplate, with a caddyless motorized drawer, but
without external brand markings. The older CR-52x drives have a
caddy and manual loading/eject, but still no external markings. The
driver is able to do an extended auto-probing for interface
addresses and drive types; this can help to find facts in cases you
are not sure, but can consume some time during the boot process if
none of the supported drives gets found. Once your drive got found,
you should enter the reported parameters into drivers/cdrom/sbpcd.h
and set "DISTRIBUTION 0" there.
This driver can support up to four CDROM controller cards, and each
card can support up to four CDROM drives; if you say Y here, you
will be asked how many controller cards you have. If compiled as a
module, only one controller card (but with up to four drives) is
usable.
If you say Y here, you should also say Y or M to "ISO 9660 CDROM
file systems support" below, because that's the file systems used on
CDROMs.
This driver is also available as a module ( = code which can be
inserted in and removed from the running kernel whenever you want).
The module will be called sbpcd.o. If you want to compile it as a
module, say M here and read Documentation/modules.txt.
Matsushita/Panasonic, ... second CDROM controller support
CONFIG_SBPCD2
Say Y here only if you have two CDROM controller cards of this type
(usually only if you have more than four drives). You should enter
the parameters for the second, third and fourth interface card into
linux/include/linux/sbpcd.h before compiling the new kernel. Read
the file Documentation/cdrom/sbpcd.
Aztech/Orchid/Okano/Wearnes/TXC/CyDROM CDROM support
CONFIG_AZTCD
This is your driver if you have an Aztech CDA268-01A, Orchid
CD-3110, Okano or Wearnes CDD110, Conrad TXC, or CyCDROM CR520 or
CR540 CDROM drive. This driver -- just like all these CDROM drivers
-- is NOT for CDROM drives with IDE/ATAPI interfaces, such as Aztech
CDA269-031SE. Please read the file Documentation/cdrom/aztcd.
If you say Y here, you should also say Y or M to "ISO 9660 CDROM
file systems support" below, because that's the file systems used on
CDROMs.
This driver is also available as a module ( = code which can be
inserted in and removed from the running kernel whenever you want).
The module will be called aztcd.o. If you want to compile it as a
module, say M here and read Documentation/modules.txt.
Sony CDU535 CDROM support
CONFIG_CDU535
This is the driver for the older Sony CDU-535 and CDU-531 CDROM
drives. Please read the file Documentation/cdrom/sonycd535.
If you say Y here, you should also say Y or M to "ISO 9660 CDROM
file system support" below, because that's the file system used on
CDROMs.
This driver is also available as a module ( = code which can be
inserted in and removed from the running kernel whenever you want).
The module will be called sonycd535.o. If you want to compile it as
a module, say M here and read Documentation/modules.txt.
Goldstar R420 CDROM support
CONFIG_GSCD
If this is your CDROM drive, say Y here. As described in the file
linux/Documentation/cdrom/gscd, you might have to change a setting
in the file linux/drivers/cdrom/gscd.h before compiling the
kernel. Please read the file Documentation/cdrom/gscd.
If you say Y here, you should also say Y or M to "ISO 9660 CDROM
file system support" below, because that's the file system used on
CDROMs.
This driver is also available as a module ( = code which can be
inserted in and removed from the running kernel whenever you want).
The module will be called gscd.o. If you want to compile it as a
module, say M here and read Documentation/modules.txt.
Philips/LMS CM206 CDROM support
CONFIG_CM206
If you have a Philips/LMS CDROM drive cm206 in combination with a
cm260 host adapter card, say Y here. Please also read the file
Documentation/cdrom/cm206.
If you say Y here, you should also say Y or M to "ISO 9660 CDROM
file system support" below, because that's the file system used on
CDROMs.
This driver is also available as a module ( = code which can be
inserted in and removed from the running kernel whenever you want).
The module will be called cm206.o. If you want to compile it as a
module, say M here and read Documentation/modules.txt.
Optics Storage DOLPHIN 8000AT CDROM support
CONFIG_OPTCD
This is the driver for the 'DOLPHIN' drive with a 34-pin Sony
compatible interface. It also works with the Lasermate CR328A. If
you have one of those, say Y. This driver does not work for the
Optics Storage 8001 drive; use the IDE-ATAPI CDROM driver for that
one. Please read the file Documentation/cdrom/optcd.
If you say Y here, you should also say Y or M to "ISO 9660 CDROM
file system support" below, because that's the file system used on
CDROMs.
This driver is also available as a module ( = code which can be
inserted in and removed from the running kernel whenever you want).
The module will be called optcd.o. If you want to compile it as a
module, say M here and read Documentation/modules.txt.
Sanyo CDR-H94A CDROM support
CONFIG_SJCD
If this is your CDROM drive, say Y here and read the file
Documentation/cdrom/sjcd. You should then also say Y or M to
"ISO 9660 CDROM file system support" below, because that's the
file system used on CDROMs.
This driver is also available as a module ( = code which can be
inserted in and removed from the running kernel whenever you want).
The module will be called sjcd.o. If you want to compile it as a
module, say M here and read Documentation/modules.txt.
Soft configurable cdrom interface card support
CONFIG_CDI_INIT
If you want to include boot-time initialization of any cdrom
interface card that is software configurable, say Y here. Currently
only the ISP16/MAD16/Mozart sound cards with built-in cdrom
interfaces are supported.
Note that the answer to this question doesn't directly affect the
kernel: saying N will just cause this configure script to skip all
the questions about these CDROM drives.
ISP16/MAD16/Mozart soft configurable cdrom interface support
CONFIG_ISP16_CDI
These are sound cards with built-in cdrom interfaces using the OPTi
82C928 or 82C929 chips. Say Y here to have them detected and
possibly configured at boot time. In addition, You'll have to say Y
to a driver for the particular cdrom drive you have attached to the
card. Read Documentation/cdrom/isp16 for details.
This driver is also available as a module ( = code which can be
inserted in and removed from the running kernel whenever you want).
The module will be called isp16.o. If you want to compile it as a
module, say M here and read Documentation/modules.txt.
Quota support
CONFIG_QUOTA
If you say Y here, you will be able to set per user limits for disk
usage (also called disk quotas). Currently, it works only for the
ext2 file system. You need additional software in order to use quota
support; for details, read the Quota mini-HOWTO, available from
http://www.linuxdoc.org/docs.html#howto . Probably the quota
support is only useful for multi user systems. If unsure, say N.
Support for USB
CONFIG_USB
Universal Serial Bus (USB) is a specification for a serial bus
subsystem which offers higher speeds and more features than the
traditional PC serial port. The bus supplies power to peripherals
and allows for hot swapping. Up to 127 USB peripherals can be
connected to a single USB port in a tree structure. The USB port is
the root of the tree, the peripherals are the leaves, and the inner
nodes are special USB devices called hubs. Many newer PCs have USB
ports and newer peripherals such as scanners, keyboards, mice,
modems, and printers support the USB protocol and can be connected
to the PC via those ports.
Say Y here if your computer has a USB port and you want to
use USB devices. You then need to say Y to at least one
of "UHCI support" or "OHCI support" below (the type of interface
that the USB hardware in your computer provides) and then choose
from among the drivers for USB peripherals.
This code is also available as a module ( = code which can be
inserted in and removed from the running kernel whenever you want).
The module will be called usbcore.o. If you want to compile it as a
module, say M here and read Documentation/modules.txt.
UHCI (intel PIIX4, VIA, ...) support?
CONFIG_USB_UHCI
The Universal Host Controller Interface is a standard by Intel for
accessing the USB hardware in the PC (which is also called the USB
host controller). If your USB host controller conforms to this
standard, say Y. All recent boards with Intel PCI chipsets (like
intel 430TX, 440FX, 440LX, 440BX, i810, i820) conform to this standard.
Also all VIA PCI chipsets (like VIA VP2, VP3, MVP3, Apollo Pro, Apollo
Pro II or Apollo Pro 133).
If unsure, say Y.
This code is also available as a module ( = code which can be
inserted in and removed from the running kernel whenever you want).
The module will be called usb-uhci.o. If you want to compile it as a
module, say M here and read Documentation/modules.txt.
USB-UHCI High Bandwidth support
CONFIG_USB_UHCI_HIGH_BANDWIDTH
This option enables the so called reclamation loop in usb-uhci, thus
allowing much higher transfer bandwidth for USB-bulk and control
messages; isochronous transfers (audio, video etc.) are not affected.
Due to a very simple design of the UHCI controller, this may cause
a significant PCI congestion under certain conditions. If you are
experiencing a system slowdown, disable this option.
If unsure, say N.
UHCI (intel PIIX4, VIA, ...) alternate (JE) support?
CONFIG_USB_UHCI_ALT
This is an alternate driver for UHCI support. It has been commonly
been referred to as the "JE driver".
The Universal Host Controller Interface is a standard by Intel for
accessing the USB hardware in the PC (which is also called the USB
host controller). If your USB host controller conforms to this
standard, say Y. All recent boards with Intel PCI chipsets (like
intel 430TX, 440FX, 440LX, 440BX, i810, i820) conform to this standard.
Also all VIA PCI chipsets (like VIA VP2, VP3, MVP3, Apollo Pro, Apollo
Pro II or Apollo Pro 133).
If unsure, say Y.
This code is also available as a module ( = code which can be
inserted in and removed from the running kernel whenever you want).
The module will be called uhci.o. If you want to compile it as a
module, say M here and read Documentation/modules.txt.
OHCI (Compaq, iMacs, OPTi, SiS, ALi, ...) support?
CONFIG_USB_OHCI
The Open Host Controller Interface is a standard by
Compaq/Microsoft/National for accessing the USB PC hardware (also
called USB host controller). If your USB host controller conforms
to this standard, say Y. The USB host controllers on most
non-Intel architectures and on several x86 compatibles with non-Intel
chipsets - like SiS (actual 610, 610 and so on) or ALi (ALi IV, ALi V,
Aladdin Pro..) - conform to this standard.
You may want to read the file Documentation/usb/ohci.txt.
This code is also available as a module ( = code which can be
inserted in and removed from the running kernel whenever you want).
The module will be called usb-ohci.o. If you want to compile it
as a module, say M here and read Documentation/modules.txt.
USB Human Interface Device (HID) support
CONFIG_USB_HID
Say Y here if you want to connect a keyboard, mouse, joystick,
graphic tablet, UPS or any other HID based devices to your computer
via USB.
USB HIDBP Keyboard support
CONFIG_USB_KBD
Say Y here if you don't want to use the generic HID driver for your
USB keyboard and prefer to use the keyboard in its limited Boot
Protocol mode. This driver is much smaller than the HID one.
USB HIDBP Mouse support
CONFIG_USB_MOUSE
Say Y here if you don't want to use the generic HID driver for your
USB mouse and prefer to use the mouse in its limited Boot Protocol
mode. This driver is much smaller than the HID one.
Wacom Graphire tablet support
CONFIG_USB_GRAPHIRE
Say Y here if you want to use the USB version of the Wacom
Graphire tablet. Make sure you select Mouse and Event support,
don't select HID support, because this driver collides with it.
Use HIDBP support for keyboards and mice instead if you need it.
Logitech WingMan Force joystick support
CONFIG_USB_WMFORCE
Say Y here if you want to use the Logitech WingMan Force with Linux
on the USB port. No force-feedback support yet, but other than that,
it should work like a normal joystick.
Keyboard support
CONFIG_INPUT_KEYBDEV
Say Y here if you want your USB HID keyboard to be able to serve as
a system keyboard.
Mouse support
CONFIG_INPUT_MOUSEDEV
Say Y here if you want your USB HID mouse to be accessible as
misc devices 32+ under /dev/, as an emulated PS/2 mouse.
Mix all mice into one device
CONFIG_INPUT_MOUSEDEV_MIX
Say Y here if you want input from all your USB HID mice to be mixed
into one misc device. If you say N, you'll have a separate
device for each your USB mouse.
Support for digitizers
CONFIG_INPUT_MOUSEDEV_DIGITIZER
Use this if you have a digitizer that doesn't emulate a mouse
itself, and want to use it as a mouse.
Horizontal screen resolution
CONFIG_INPUT_MOUSEDEV_SCREEN_X
For the mouse emulation to be correct, the mousedev driver needs
to know the screen resolution you are using (in X).
Vertical screen resolution
CONFIG_INPUT_MOUSEDEV_SCREEN_Y
For the mouse emulation to be correct, the mousedev driver needs
to know the screen resolution you are using (in X).
Joystick support
CONFIG_INPUT_JOYDEV
Say Y here if you want your USB HID joystick or gamepad to be
accessible as /dev/js device. You can't use a normal joystick
if you select this.
Event interface support
CONFIG_INPUT_EVDEV
Say Y here if you want your USB HID device events be accessible
under /dev/inputX (misc 64+) in a generic way.
This is the future ...
USB Scanner support
CONFIG_USB_SCANNER
Say Y here if you want to connect a USB scanner to your
computer's USB port. Please read Documentation/usb/scanner.txt
and Documentation/usb/scanner-hp-sane.txt for more information.
This code is also available as a module ( = code which can be
inserted in and removed from the running kernel whenever you want).
The module will be called hp_scanner.o. If you want to compile it as
a module, say M here and read Documentation/modules.txt.
USB Audio support
CONFIG_USB_AUDIO
Say Y here if you want to connect USB audio equipment such as
speakers to your computer's USB port.
This code is also available as a module ( = code which can be
inserted in and removed from the running kernel whenever you want).
The module will be called audio.o. If you want to compile it as a
module, say M here and read Documentation/modules.txt.
USB Modem (CDC ACM) support
CONFIG_USB_ACM
This driver supports USB modems and ISDN adapters which support the
Communication Device Class Abstract Control Model interface.
This code is also available as a module ( = code which can be
inserted in and removed from the running kernel whenever you want).
The module will be called acm.o. If you want to compile it as a
module, say M here and read Documentation/modules.txt.
USB Serial converter support
CONFIG_USB_SERIAL
Say Y here if you want to connect a Connect Tech WhiteHEAT
multi-port USB to serial converter; a Belkin, Peracom, or eTek
single port USB to serial converter; or a Handspring Visor.
Please read Documentation/usb/usb-serial.txt for more information.
This code is also available as a module ( = code which can be
inserted in and removed from the running kernel whenever you want).
The module will be called usb-serial.o. If you want to compile it
as a module, say M here and read Documentation/modules.txt.
USB Generic Serial Driver
CONFIG_USB_SERIAL_GENERIC
Say Y here if you want to use the generic USB serial driver.
Please read Documentation/usb/usb-serial.txt for more information
on using this driver. It is recommended that the USB Serial
Driver be compiled as a module for this driver to be used properly.
USB ConnectTech WhiteHEAT Serial Driver
CONFIG_USB_SERIAL_WHITEHEAT
Say Y here if you want to use a ConnectTech WhiteHEAT 4 port
USB to serial converter device.
USB Handspring Visor Driver
CONFIG_USB_SERIAL_VISOR
Say Y here if you want to connect to your HandSpring Visor through
its USB docking station. See http://usbvisor.sourceforge.net for
more information on using this driver.
USB Printer support
CONFIG_USB_PRINTER
Say Y here if you want to connect a USB printer to your computer's USB
port.
This code is also available as a module ( = code which can be
inserted in and removed from the running kernel whenever you want).
The module will be called printer.o. If you want to compile it as a
module, say M here and read Documentation/modules.txt.
USB CPiA Camera support
CONFIG_USB_CPIA
Say Y here if you want to connect this type of camera to your
computer's USB port.
This driver uses the Video For Linux API. You must enable
(Y or M in config) Video For Linux (under Character Devices)
to use this driver. Information on this API and pointers to
"v4l" programs may be found on the WWW at
http://roadrunner.swansea.uk.linux.org/v4l.shtml .
This code is also available as a module ( = code which can be
inserted in and removed from the running kernel whenever you want).
The module will be called cpia.o. If you want to compile it as a
module, say M here and read Documentation/modules.txt.
USB IBM (Xirlink) C-It Camera support
CONFIG_USB_IBMCAM
Say Y here if you want to connect this type of camera to your
computer's USB port.
This driver uses the Video For Linux API. You must enable
(Y or M in config) Video For Linux (under Character Devices)
to use this driver. Information on this API and pointers to
"v4l" programs may be found on the WWW at
http://roadrunner.swansea.uk.linux.org/v4l.shtml .
This code is also available as a module ( = code which can be
inserted in and removed from the running kernel whenever you want).
The module will be called ibmcam.o. If you want to compile it as a
module, say M here and read Documentation/modules.txt. This camera
has several configuration options which can be specified when you
load the module. Read Documentation/usb/ibmcam.txt to learn more.
USB OV511 Camera support
CONFIG_USB_OV511
Say Y here if you want to connect this type of camera to your
computer's USB port. See Documentation/usb/ov511.txt for more
information and for a list of supported cameras.
This driver uses the Video For Linux API. You must enable
(Y or M in config) Video For Linux (under Character Devices)
to use this driver. Information on this API and pointers to
"v4l" programs may be found on the WWW at
http://roadrunner.swansea.uk.linux.org/v4l.shtml .
This code is also available as a module ( = code which can be
inserted in and removed from the running kernel whenever you want).
The module will be called ov511.o. If you want to compile it as a
module, say M here and read Documentation/modules.txt.
USB Kodak DC-2xx Camera support
CONFIG_USB_DC2XX
Say Y here if you want to connect this type of still camera to
your computer's USB port. See Documentation/usb/dc2xx.txt for more
information; some non-Kodak cameras may also work with this
driver, given application support (such as www.gPhoto.org).
This code is also available as a module ( = code which can be
inserted in and removed from the running kernel whenever you want).
The module will be called dc2xx.o. If you want to compile it as a
module, say M here and read Documentation/modules.txt.
USB Mass Storage support
CONFIG_USB_STORAGE
Say Y here if you want to connect USB mass storage devices to your
computer's USB port.
This code is also available as a module ( = code which can be
inserted in and removed from the running kernel whenever you want).
The module will be called usb-storage.o. If you want to compile it
as a module, say M here and read Documentation/modules.txt.
USB Mass Storage verbose debug
CONFIG_USB_STORAGE_DEBUG
Say Y here in order to have the USB Mass Storage code generate
verbose debugging messages.
USS720 parport driver
CONFIG_USB_USS720
This driver is for USB parallel port adapters that use the Lucent
Technologies USS-720 chip. These adapters provide USB compatibility
to peripherals designed with parallel port interfaces.
The chip has two modes: automatic mode and manual mode. In automatic
mode, it looks to the computer like a standard USB printer. Only
printers may be connected to the USS-720 in this mode. The generic
USB printer driver ("USB Printer support", above) may be used in
that mode, and you can say N here if you want to use the chip only
in this mode.
Manual mode is not limited to printers, any parallel port
device should work. This driver utilizes manual mode.
Note however that some operations are three orders of magnitude
slower than on a PCI/ISA Parallel Port, so timing critical
applications might not work.
Say Y here if you own an USS-720 USB->Parport cable and intend to
connect anything other than a printer to it.
This code is also available as a module ( = code which can be
inserted in and removed from the running kernel whenever you want).
The module will be called uss720.o. If you want to compile it as a
module, say M here and read Documentation/modules.txt.
USB device file system
CONFIG_USB_DEVICEFS
This file system implements a "devices" file, that lists
the currently connected to your USB busses, a "drivers" file
that lists the USB kernel client drivers currently loaded,
and for every connected device a file named "xxx/yyy", where
xxx is the bus number and yyy the device number, that can be used
by userspace drivers to talk to the device.
Most users want to say Y here.
DABUSB driver
CONFIG_USB_DABUSB
A Digital Audio Broadcasting (DAB) Receiver for USB and Linux brought
to you by the DAB-Team (http://dab.in.tum.de).
This driver can be taken as an example for URB-based bulk, control, and
isochronous transactions.
This code is also available as a module ( = code which can be
inserted in and removed from the running kernel whenever you want).
The module will be called dabusb.o. If you want to compile it as a
module, say M here and read Documentation/modules.txt.
PLUSB driver
CONFIG_USB_PLUSB
A driver for the Prolific PL-2302 USB to USB network device. This 'USB
cable' connects two hosts via a point to point network with bandwidth of
5Mbit/s. Configure this driver after connecting the USB cable via
ifconfig plusb0 10.0.0.1 pointopoint 10.0.0.2
(and vice versa on the other host).
ACPI support
CONFIG_ACPI
Advanced Configuration and Power Interface (ACPI) is an interface
specification to support power management of peripherals. If your
system supports it, say Y here.
Minix fs support
CONFIG_MINIX_FS
Minix is a simple operating system used in many classes about OS's.
The minix file system (method to organize files on a hard disk
partition or a floppy disk) was the original file system for Linux,
but has been superseded by the second extended file system ext2fs.
You don't want to use the minix file system on your hard disk because
of certain built-in restrictions, but it is sometimes found on older
Linux floppy disks. This option will enlarge your kernel by about
28 kB. If unsure, say N.
If you want to compile this as a module ( = code which can be
inserted in and removed from the running kernel whenever you want),
say M here and read Documentation/modules.txt. The module will be
called minix.o. Note that the file system of your root partition (the
one containing the directory /) cannot be compiled as a module.
Second extended fs support
CONFIG_EXT2_FS
This is the de facto standard Linux file system (method to organize
files on a storage device) for hard disks.
You want to say Y here, unless you intend to use Linux exclusively
from inside a DOS partition using the umsdos file system. The
advantage of the latter is that you can get away without
repartitioning your hard drive (which often implies backing
everything up and restoring afterwards); the disadvantage is that
Linux becomes susceptible to DOS viruses and that umsdos is somewhat
slower than ext2fs. Even if you want to run Linux in this fashion,
it might be a good idea to have ext2fs around: it enables you to
read more floppy disks and facilitates the transition to a *real*
Linux partition later. Another (rare) case which doesn't require
ext2fs is a diskless Linux box which mounts all files over the
network using NFS (in this case it's sufficient to say Y to "NFS
file system support" below). Saying Y here will enlarge your kernel
by about 44 kB.
The Ext2fs-Undeletion mini-HOWTO, available from
http://www.linuxdoc.org/docs.html#howto , gives information about
how to retrieve deleted files on ext2fs file systems.
To change the behavior of ext2 file systems, you can use the tune2fs
utility ("man tune2fs"). To modify attributes of files and
directories on ext2 file systems, use chattr ("man chattr").
Ext2fs partitions can be read from within DOS using the ext2tool
command line tool package (available via FTP (user: anonymous) from
ftp://metalab.unc.edu/pub/Linux/system/filesystems/ext2 ) and from
within Windows NT using the ext2nt command line tool package from
ftp://metalab.unc.edu/pub/Linux/utils/dos . Explore2fs is a graphical
explorer for ext2fs partitions which runs on Windows 95 and Windows
NT and includes experimental write support; it is available from
http://jnewbigin-pc.it.swin.edu.au/Linux/Explore2fs.htm .
If you want to compile this file system as a module ( = code which
can be inserted in and removed from the running kernel whenever you
want), say M here and read Documentation/modules.txt. The module
will be called ext2.o. Be aware however that the file system of your
root partition (the one containing the directory /) cannot be
compiled as a module, and so this could be dangerous. Most everyone
wants to say Y here.
SCO UnixWare BFS Support
CONFIG_BFS_FS
Boot Filesystem (BFS) is a file system used under SCO UnixWare to
allow bootloader access the kernel image and other important files
during the boot process. It is usually mounted under /stand and
corresponds to the slice marked as "STAND" in the UnixWare
partition. This is useful if you want to access files on your /stand
slice from Linux. More information on this file system can be found in
Documentation/filesystems/bfs.txt file. If you do not know what it is,
say N.
If you want to compile this as a module ( = code which can be
inserted in and removed from the running kernel whenever you want),
say M here and read Documentation/modules.txt. The module will be
called bfs.o. Note that the file system of your root partition (the
one containing the directory /) cannot be compiled as a module.
ISO 9660 CDROM file system support
CONFIG_ISO9660_FS
This is the standard file system used on CDROMs. It was previously
known as "High Sierra Filesystem" and is called "hsfs" on other Unix
systems. The so-called Rock-Ridge extensions which allow for long
Unix filenames and symbolic links are also supported by this driver.
If you have a CDROM drive and want to do more with it than just
listen to audio CDs and watch its LEDs, say Y (and read
Documentation/filesystems/isofs.txt and the CDROM-HOWTO, available
from http://www.linuxdoc.org/docs.html#howto ), thereby
enlarging your kernel by about 27 KB; otherwise say N.
If you want to compile this as a module ( = code which can be
inserted in and removed from the running kernel whenever you want),
say M here and read Documentation/modules.txt. The module will be
called isofs.o.
Microsoft Joliet CDROM extensions
CONFIG_JOLIET
Joliet is a Microsoft extension for the ISO 9660 CDROM file system
which allows for long filenames in unicode format (unicode is the
new 16 bit character code, successor to ASCII, which encodes the
characters of almost all languages of the world; see
http://www.unicode.org for more information). Say Y here if you want
to be able to read Joliet CDROMs under Linux.
UDF Filesystem support (read only)
CONFIG_UDF_FS
This is the new file system used by some CDROMS and DVD drivers. Say
Y if you intend to mount DVD discs or CDRW's written in packet mode,
or if written to by other UDF utilities, such as DirectCD. Please
read Documentation/filesystems/udf.txt.
This file system support is also available as a module ( = code which
can be inserted in and removed from the running kernel whenever you
want). The module is called udf.o. If you want to compile it as a
module, say M here and read Documentation/modules.txt.
If unsure, say N.
UDF write support (DANGEROUS)
CONFIG_UDF_RW
Say Y if you want to test write support for UDF file systems.
Due to lack of support for writing to CDR/CDRW's, this option
is only supported for Hard Discs, DVD-RAM, and loopback files.
DOS FAT fs support
CONFIG_FAT_FS
If you want to use one of the FAT-based file systems (the MS-DOS,
VFAT (Windows 95) and UMSDOS (used to run Linux on top of an
ordinary DOS partition) file systems), then you must say Y or M here
to include FAT support. You will then be able to mount partitions or
diskettes with FAT-based file systems and transparently access the
files on them, i.e. MSDOS files will look and behave just like all
other Unix files.
This FAT support is not a file system in itself, it only provides the
foundation for the other file systems. You will have to say Y or M to
at least one of "msdos fs support" or "vfat fs support" in order to
make use of it.
Another way to read and write MSDOS floppies and hard drive
partitions from within Linux (but not transparently) is with the
mtools ("man mtools") program suite. This doesn't require the FAT
file system support.
It is now also becoming possible to read and write compressed FAT
file systems; read Documentation/filesystems/fat_cvf.txt for details.
The FAT support will enlarge your kernel by about 37 KB. If unsure,
say Y.
If you want to compile this as a module however ( = code which can
be inserted in and removed from the running kernel whenever you
want), say M here and read Documentation/modules.txt. The module
will be called fat.o. Note that if you compile the FAT support as a
module, you cannot compile any of the FAT-based file systems into the
kernel -- they will have to be modules as well. The file system of
your root partition (the one containing the directory /) cannot be a
module, so don't say M here if you intend to use UMSDOS as your root
file system.
MSDOS fs support
CONFIG_MSDOS_FS
This allows you to mount MSDOS partitions of your hard drive (unless
they are compressed; to access compressed MSDOS partitions under
Linux, you can either use the DOS emulator DOSEMU, described in the
DOSEMU-HOWTO, available from
http://www.linuxdoc.org/docs.html#howto , or try dmsdosfs in
ftp://metalab.unc.edu/pub/Linux/system/filesystems/dosfs . If you
intend to use dosemu with a non-compressed MSDOS partition, say Y
here) and MSDOS floppies. This means that file access becomes
transparent, i.e. the MSDOS files look and behave just like all
other Unix files.
If you want to use umsdos, the Unix-like file system on top of DOS,
which allows you to run Linux from within a DOS partition without
repartitioning, you'll have to say Y or M here.
If you have Windows 95 or Windows NT installed on your MSDOS
partitions, you should use the VFAT file system (say Y to "vfat fs
support" below), or you will not be able to see the long filenames
generated by Windows 95 / Windows NT.
This option will enlarge your kernel by about 7 KB. If unsure,
answer Y. This will only work if you said Y to "fat fs support" as
well. If you want to compile this as a module however ( = code which
can be inserted in and removed from the running kernel whenever you
want), say M here and read Documentation/modules.txt. The module
will be called msdos.o.
VFAT (Windows-95) fs support
CONFIG_VFAT_FS
This option provides support for normal Windows file systems with
long filenames. That includes non-compressed FAT-based file systems
used by Windows 95, Windows 98, Windows NT 4.0, and mtools.
You cannot use the VFAT file system for your Linux root partition
(the one containing the directory /); use UMSDOS instead if you
want to run Linux from within a DOS partition (i.e. say Y to
"umsdos: Unix like fs on top of std MSDOS fs", below).
The VFAT support enlarges your kernel by about 10 KB and it only
works if you said Y to the "fat fs support" above. Please read the
file Documentation/filesystems/vfat.txt for details. If unsure,
say Y.
If you want to compile this as a module ( = code which can be
inserted in and removed from the running kernel whenever you want),
say M here and read Documentation/modules.txt. The module will be
called vfat.o.
UMSDOS: Unix-like file system on top of standard MSDOS file system
CONFIG_UMSDOS_FS
Say Y here if you want to run Linux from within an existing DOS
partition of your hard drive. The advantage of this is that you can
get away without repartitioning your hard drive (which often implies
backing everything up and restoring afterwards) and hence you're
able to quickly try out Linux or show it to your friends; the
disadvantage is that Linux becomes susceptible to DOS viruses and
that UMSDOS is somewhat slower than ext2fs. Another use of UMSDOS
is to write files with long unix filenames to MSDOS floppies; it
also allows Unix-style soft-links and owner/permissions of files on
MSDOS floppies. You will need a program called umssync in order to
make use of umsdos; read Documentation/filesystems/umsdos.txt.
To get utilities for initializing/checking UMSDOS file system, or
latest patches and/or information, visit UMSDOS homepage at
http://www.voyager.hr/~mnalis/umsdos/ .
This option enlarges your kernel by about 28 KB and it only works if
you said Y to both "fat fs support" and "msdos fs support" above. If
you want to compile this as a module ( = code which can be inserted
in and removed from the running kernel whenever you want), say M
here and read Documentation/modules.txt. The module will be called
umsdos.o. Note that the file system of your root partition (the one
containing the directory /) cannot be a module, so saying M could be
dangerous. If unsure, say N.
/proc file system support
CONFIG_PROC_FS
This is a virtual file system providing information about the status
of the system. "Virtual" means that it doesn't take up any space on
your hard disk: the files are created on the fly by the kernel when
you try to access them. Also, you cannot read the files with older
version of the program less: you need to use more or cat.
It's totally cool; for example, "cat /proc/interrupts" gives
information about what the different IRQs are used for at the moment
(there is a small number of Interrupt ReQuest lines in your computer
that are used by the attached devices to gain the CPU's attention --
often a source of trouble if two devices are mistakenly configured
to use the same IRQ).
The /proc filesystem is explained in the file
Documentation/filesystems/proc.txt and on the proc(5) manpage ("man
5 proc").
This option will enlarge your kernel by about 67 KB. Several
programs depend on this, so everyone should say Y here.
/dev filesystem support (EXPERIMENTAL)
CONFIG_DEVFS_FS
This is another virtual filesystem (like /proc) which provides the
filesystem interface to device drivers, normally found in /dev.
Devfs does not depend on major and minor number allocations. Device
drivers register entries in /dev which appear automagically. Without
devfs you need to populate /dev with hundreds, even thousands of
inodes.
This is work in progress. If you want to use this you *must* read
Documentation/filesystems/devfs/README
Enable devfs debugging output
CONFIG_DEVFS_DEBUG
This option appears if you have CONFIG_DEVFS_FS enabled. Setting
this to 'Y' enables devfs debugging output. See the file
Documentation/filesystems/devfs/boot-options for more details.
The default is 'N'.
NFS filesystem support
CONFIG_NFS_FS
If you are connected to some other (usually local) Unix computer
(using SLIP, PLIP, PPP or Ethernet) and want to mount files residing
on that computer (the NFS server) using the Network File Sharing
protocol, say Y. "Mounting files" means that the client can access
the files with usual UNIX commands as if they were sitting on the
client's hard disk. For this to work, the server must run the
programs nfsd and mountd (but does not need to have NFS file system
support enabled in its kernel). NFS is explained in the Network
Administrator's Guide, available from
http://metalab.unc.edu/mdw/linux.html#guide , on its man page: "man
nfs", and in the NFS-HOWTO.
A superior but less widely used alternative to NFS is provided by
the Coda file system; see "Coda file system support" below.
If you say Y here, you should have said Y to TCP/IP networking also.
This option would enlarge your kernel by about 27 KB.
This file system is also available as a module ( = code which can be
inserted in and removed from the running kernel whenever you want).
The module is called nfs.o. If you want to compile it as a module,
say M here and read Documentation/modules.txt.
If you are configuring a diskless machine which will mount its root
file system over NFS at boot time, say Y here and to "IP: kernel
level autoconfiguration" above and to "Root file system on NFS"
below. You cannot compile this driver as a module in this case.
There are two packages designed for booting diskless machines over
the net: netboot and etherboot, both available via FTP from
ftp://metalab.unc.edu/pub/Linux/system/boot/ethernet/ .
If you don't know what all this is about, say N.
Root file system on NFS
CONFIG_ROOT_NFS
If you want your Linux box to mount its whole root file system (the
one containing the directory /) from some other computer over the
net via NFS (presumably because your box doesn't have a hard disk),
say Y. Read Documentation/nfsroot.txt for details. It is likely that
in this case, you also want to say Y to "IP: kernel level
autoconfiguration" so that your box can discover its network address
at boot time.
Most people say N here.
NFS server support
CONFIG_NFSD
If you want your Linux box to act as an NFS *server*, so that other
computers on your local network which support NFS can access certain
directories on your box transparently, you have two options: you can
use the self-contained user space program nfsd, in which case you
should say N here, or you can say Y and use the kernel based NFS
server. The advantage of the kernel based solution is that it is
faster.
In either case, you will need support software; the respective
locations are given in the file Documentation/Changes in the NFS
section.
Please read the NFS-HOWTO, available from
http://www.linuxdoc.org/HOWTO/NFS-HOWTO.html .
The NFS server is also available as a module ( = code which can be
inserted in and removed from the running kernel whenever you want).
The module is called nfsd.o. If you want to compile it as a module,
say M here and read Documentation/modules.txt. If unsure, say N.
Provide NFSv3 server support (EXPERIMENTAL)
CONFIG_NFSD_V3
If you would like to include the NFSv3 server was well as the NFSv2
server, say Y here. File locking, via the NLMv4 protocol, is also
supported. If unsure, say N.
OS/2 HPFS file system support
CONFIG_HPFS_FS
OS/2 is IBM's operating system for PC's, the same as Warp, and HPFS
is the file system used for organizing files on OS/2 hard disk
partitions. Say Y if you want to be able to read files from an OS/2
HPFS partition of your hard drive. OS/2 floppies however are in
regular MSDOS format, so you don't need this option in order to be
able to read them. Read Documentation/filesystems/hpfs.txt.
This file system is also available as a module ( = code which can be
inserted in and removed from the running kernel whenever you want).
The module is called hpfs.o. If you want to compile it as a module,
say M here and read Documentation/modules.txt. If unsure, say N.
Windows NT NTFS support (read only)
CONFIG_NTFS_FS
NTFS is the file system of Microsoft Windows NT. Say Y if you want
to get read access to files on NTFS partitions of your hard drive.
The Linux NTFS driver supports most of the mount options of the VFAT
driver, see Documentation/filesystems/ntfs.txt. Saying Y here will
give you read-only access to NTFS partitions.
This code is also available as a module ( = code which can be
inserted in and removed from the running kernel whenever you want).
The module will be called ntfs.o. If you want to compile it as a
module, say M here and read Documentation/modules.txt.
NTFS write support (DANGEROUS)
CONFIG_NTFS_RW
If you say Y here, you will (hopefully) be able to write to NTFS
file systems as well as read from them. The read-write support
in NTFS is far from being complete and is not well tested. If you
enable this, back up your NTFS volume first since it may get
damaged.
If unsure, say N.
System V and Coherent file system support (read only)
CONFIG_SYSV_FS
SCO, Xenix and Coherent are commercial Unix systems for Intel
machines. Saying Y here would allow you to read from their floppies
and hard disk partitions.
If you have floppies or hard disk partitions like that, it is likely
that they contain binaries from those other Unix systems; in order
to run these binaries, you will want to install iBCS2 (Intel Binary
Compatibility Standard is a kernel module which lets you run SCO,
Xenix, Wyse, UnixWare, Dell Unix and System V programs under Linux
and is often needed to run commercial software that's only available
for those systems. It's available via FTP (user: anonymous) from
ftp://tsx-11.mit.edu/pub/linux/BETA ).
If you only intend to mount files from some other Unix over the
network using NFS, you don't need the System V file system support
(but you need NFS file system support obviously).
Note that this option is generally not needed for floppies, since a
good portable way to transport files and directories between unixes
(and even other operating systems) is given by the tar program ("man
tar" or preferably "info tar"). Note also that this option has
nothing whatsoever to do with the option "System V IPC". Read about
the System V file system in Documentation/filesystems/sysv-fs.txt.
Saying Y here will enlarge your kernel by about 27 kB.
If you want to compile this as a module ( = code which can be
inserted in and removed from the running kernel whenever you want),
say M here and read Documentation/modules.txt. The module will be
called sysv.o.
If you haven't heard about all of this before, it's safe to say N.
SYSV file system write support (DANGEROUS)
CONFIG_SYSV_FS_WRITE
If you say Y here, you will (hopefully) be able to write to System V
and Coherent file systems as well as read from them. The read-write
support in SYSV is not well tested yet. If you enable this, back up
your SYSV/Coherent volumes first since they may get damaged.
If unsure, say N.
Amiga FFS file system support
CONFIG_AFFS_FS
The Fast File System (FFS) is the common file system used on hard
disks by Amiga(tm) systems since AmigaOS Version 1.3 (34.20). Say Y
if you want to be able to read and write files from and to an Amiga
FFS partition on your hard drive. Amiga floppies however cannot be
read with this driver due to an incompatibility of the floppy
controller used in an Amiga and the standard floppy controller in
PCs and workstations. Read Documentation/filesystems/affs.txt and
fs/affs/Changes.
With this driver you can also mount disk files used by Bernd
Schmidt's Un*X Amiga Emulator (http://www.freiburg.linux.de/~uae/ ).
If you want to do this, you will also need to say Y or M to "Loop
device support", above.
This file system is also available as a module ( = code which can be
inserted in and removed from the running kernel whenever you want).
The module is called affs.o. If you want to compile it as a module,
say M here and read Documentation/modules.txt. If unsure, say N.
Apple Macintosh file system support (EXPERIMENTAL)
CONFIG_HFS_FS
If you say Y here, you will be able to mount Macintosh-formatted
floppy disks and hard drive partitions with full read-write access.
Please read fs/hfs/HFS.txt to learn about the available mount
options.
This file system support is also available as a module ( = code which
can be inserted in and removed from the running kernel whenever you
want). The module is called hfs.o. If you want to compile it as a
module, say M here and read Documentation/modules.txt.
ROM file system support
CONFIG_ROMFS_FS
This is a very small read-only file system mainly intended for
initial ram disks of installation disks, but it could be used for
other read-only media as well. Read
Documentation/filesystems/romfs.txt for details.
This file system support is also available as a module ( = code which
can be inserted in and removed from the running kernel whenever you
want). The module is called romfs.o. If you want to compile it as a
module, say M here and read Documentation/modules.txt.
If you don't know whether you need it, then you don't need it:
answer N.
QNX4 file system support (read only) (EXPERIMENTAL)
CONFIG_QNX4FS_FS
This is the file system used by the operating system QNX 4. Say Y if
you intend to mount QNX hard disks or floppies. Unless you say Y to
"QNX4FS write support" below, you will only be able to read
these file systems.
This file system support is also available as a module ( = code which
can be inserted in and removed from the running kernel whenever you
want). The module is called qnx4.o. If you want to compile it as a
module, say M here and read Documentation/modules.txt.
If you don't know whether you need it, then you don't need it:
answer N.
QNX4FS write support (DANGEROUS)
CONFIG_QNX4FS_RW
Say Y if you want to test write support for QNX4 file systems.
Kernel automounter support
CONFIG_AUTOFS_FS
The automounter is a tool to automatically mount remote file systems
on demand. This implementation is partially kernel-based to reduce
overhead in the already-mounted case; this is unlike the BSD
automounter (amd), which is a pure user space daemon.
To use the automounter you need the user-space tools from
ftp://ftp.kernel.org/pub/linux/daemons/autofs ; you also want to
answer Y to "NFS file system support", below.
If you want to compile this as a module ( = code which can be
inserted in and removed from the running kernel whenever you want),
say M here and read Documentation/modules.txt. The module will be
called autofs.o.
If you are not a part of a fairly large, distributed network, you
probably do not need an automounter, and can say N here.
If you want to use the newer version of autofs with more features,
say N here and select automounter v4.
Kernel automounter v4 support
CONFIG_AUTOFS4_FS
The automounter is a tool to automatically mount remote file systems
on demand. This implementation is partially kernel-based to reduce
overhead in the already-mounted case; this is unlike the BSD
automounter (amd), which is a pure user space daemon.
To use the automounter you need the user-space tools from
ftp://ftp.kernel.org/pub/linux/daemons/autofs/testing-v4 ; you also
want to answer Y to "NFS file system support", below.
If you want to compile this as a module ( = code which can be
inserted in and removed from the running kernel whenever you want),
say M here and read Documentation/modules.txt. The module will be
called autofs4.o. You will need to add "alias autofs autofs4" to
your modules configuration file.
If you are not a part of a fairly large, distributed network or don't
have a laptop which needs to dynamically reconfigure to the local
network, you probably do not need an automounter, and can say N here.
EFS file system support (read only) (EXPERIMENTAL)
CONFIG_EFS_FS
EFS is an older file system used for non-ISO9660 CDROMs and hard disk
partitions by SGI's IRIX operating system (IRIX 6.0 and newer uses
the XFS file system for hard disk partitions however).
This implementation only offers read-only access. If you don't know
what all this is about, it's safe to say N. For more information
about EFS see its home page at http://aeschi.ch.eu.org/efs/ .
If you want to compile the EFS file system support as a module ( =
code which can be inserted in and removed from the running kernel
whenever you want), say M here and read Documentation/modules.txt.
The module will be called efs.o.
SGI disklabel support
CONFIG_SGI_DISKLABEL
Say Y to this only if you plan on mounting disks with SGI
disklabels. This is not required to mount EFS-format CDROMs.
UFS file system support (read only)
CONFIG_UFS_FS
BSD and derivate versions of Unix (such as SunOS, FreeBSD, NetBSD,
OpenBSD and NeXTstep) use a file system called UFS. Some System V
Unixes can create and mount hard disk partitions and diskettes using
this file system as well. Saying Y here will allow you to read from
these partitions; if you also want to write to them, say Y to the
experimental "UFS file system write support", below. Please read the
file Documentation/filesystems/ufs.txt for more information.
If you only intend to mount files from some other Unix over the
network using NFS, you don't need the UFS file system support (but
you need NFS file system support obviously).
Note that this option is generally not needed for floppies, since a
good portable way to transport files and directories between unixes
(and even other operating systems) is given by the tar program ("man
tar" or preferably "info tar").
When accessing NeXTstep files, you may need to convert them from the
NeXT character set to the Latin1 character set; use the program
recode ("info recode") for this purpose.
If you want to compile the UFS file system support as a module ( =
code which can be inserted in and removed from the running kernel
whenever you want), say M here and read Documentation/modules.txt.
The module will be called ufs.o.
If you haven't heard about all of this before, it's safe to say N.
UFS file system write support (DANGEROUS)
CONFIG_UFS_FS_WRITE
Say Y here if you want to try writing to UFS partitions. This is
experimental, so you should back up your UFS partitions beforehand.
Advanced partition selection
CONFIG_PARTITION_ADVANCED
Say Y here if you would like to use hard disks under Linux which
were partitioned under an operating system running on a different
architecture than your Linux system.
Note that the answer to this question won't directly affect the
kernel: saying N will just cause this configure script to skip all
the questions about foreign partitioning schemes. If unsure, say N.
Alpha OSF partition support
CONFIG_OSF_PARTITION
Say Y here if you would like to use hard disks under Linux which
were partitioned on an Alpha machine.
Macintosh partition map support
CONFIG_MAC_PARTITION
Say Y here if you would like to use hard disks under Linux which
were partitioned on a Macintosh.
PC BIOS (MSDOS partition tables) support
CONFIG_MSDOS_PARTITION
Say Y here if you would like to use hard disks under Linux which
were partitioned on an x86 PC (not necessarily by DOS).
BSD disklabel (FreeBSD partition tables) support
CONFIG_BSD_DISKLABEL
FreeBSD uses its own hard disk partition scheme on your PC. It
requires only one entry in the primary partition table of your disk
and manages it similarly to DOS extended partitions, putting in its
first sector a new partition table in BSD disklabel format. Saying Y
here allows you to read these disklabels and further mount FreeBSD
partitions from within Linux if you have also said Y to "UFS
file system support", above. If you don't know what all this is
about, say N.
Sun partition tables support
CONFIG_SUN_PARTITION
Like most systems, SunOS uses its own hard disk partition table
format, incompatible with all others. Saying Y here allows you to
read these partition tables and further mount SunOS partitions from
within Linux if you have also said Y to "UFS file system support",
above. This is mainly used to carry data from a SPARC under SunOS to
your Linux box via a removable medium like magneto-optical or ZIP
drives; note however that a good portable way to transport files and
directories between unixes (and even other operating systems) is
given by the tar program ("man tar" or preferably "info tar"). If
you don't know what all this is about, say N.
Solaris (x86) partition table support
CONFIG_SOLARIS_X86_PARTITION
Like most systems, Solaris x86 uses its own hard disk partition
table format, incompatible with all others. Saying Y here allows you
to read these partition tables and further mount Solaris x86
partitions from within Linux if you have also said Y to "UFS
file system support", above.
SGI partition support
CONFIG_SGI_PARTITION
Say Y here if you would like to be able to read the hard disk
partition table format used by SGI machines.
ADFS file system support (read only) (EXPERIMENTAL)
CONFIG_ADFS_FS
The Acorn Disc Filing System is the standard file system of the
RiscOS operating system which runs on Acorn's ARM-based Risc PC
systems and the Acorn Archimedes range of machines. If you say Y
here, Linux will be able to read from ADFS partitions on hard drives
and from ADFS-formatted floppy discs.
The ADFS partition should be the first partition (i.e.,
/dev/[hs]d?1) on each of your drives. Please read the file
Documentation/filesystems/adfs.txt for further details.
This code is also available as a module called adfs.o ( = code which
can be inserted in and removed from the running kernel whenever you
want). If you want to compile it as a module, say M here and read
Documentation/modules.txt.
If unsure, say N.
/dev/pts file system for Unix98 PTYs
CONFIG_DEVPTS_FS
You should say Y here if you said Y to "Unix98 PTY support" above.
You'll then get a virtual file system which can be mounted on
/dev/pts with "mount -t devpts". This, together with the pseudo
terminal master multiplexer /dev/ptmx, is used for pseudo terminal
support as described in The Open Group's Unix98 standard: in order
to acquire a pseudo terminal, a process opens /dev/ptmx; the number
of the pseudo terminal is then made available to the process and the
pseudo terminal slave can be accessed as /dev/pts/<number>. What was
traditionally /dev/ttyp2 will then be /dev/pts/2, for example.
The GNU C library glibc 2.1 contains the requisite support for this
mode of operation; you also need client programs that use the Unix98
API.
Note that CONFIG_DEVFS_FS is a more general facility.
UnixWare slices support (EXPERIMENTAL)
CONFIG_UNIXWARE_DISKLABEL
Like some systems, UnixWare uses its own slice table inside a
partition (VTOC - Virtual Table of Contents). Its format is
incompatible with all other OSes. Saying Y here allows you to read
VTOC and further mount UnixWare partitions read-only from within
Linux if you have also said Y to "UFS file system support" or "System
V and Coherent file system support", above.
This is mainly used to carry data from a UnixWare box to your
Linux box via a removable medium like magneto-optical, ZIP or
removable IDE drives. Note, however, that a good portable way to
transport files and directories between unixes (and even other
operating systems) is given by the tar program ("man tar" or
preferably "info tar").
If you don't know what all this is about, say N.
SMB file system support (to mount Windows shares etc.)
CONFIG_SMB_FS
SMB (Server Message Block) is the protocol Windows for Workgroups
(WfW), Windows 95/98, Windows NT and OS/2 Lan Manager use to share
files and printers over local networks. Saying Y here allows you to
mount their file systems (often called "shares" in this context) and
access them just like any other Unix directory. Currently, this
works only if the Windows machines use TCP/IP as the underlying
transport protocol, and not NetBEUI. For details, read
Documentation/filesystems/smbfs.txt and the SMB-HOWTO, available
from http://www.linuxdoc.org/docs.html#howto .
Note: if you just want your box to act as an SMB *server* and make
files and printing services available to Windows clients (which need
to have a TCP/IP stack), you don't need to say Y here; you can use
the program samba (available via FTP (user: anonymous) in
ftp://metalab.unc.edu/pub/Linux/system/network/samba ) for that.
General information about how to connect Linux, Windows machines and
Macs is on the WWW at http://www.eats.com/linux_mac_win.html .
If you want to compile the SMB support as a module ( = code which
can be inserted in and removed from the running kernel whenever you
want), say M here and read Documentation/modules.txt. The module
will be called smbfs.o. Most people say N, however.
Coda file system support (advanced network fs)
CONFIG_CODA_FS
Coda is an advanced network file system, similar to NFS in that it
enables you to mount file systems of a remote server and access them
with regular Unix commands as if they were sitting on your hard
disk. Coda has several advantages over NFS: support for disconnected
operation (e.g. for laptops), read/write server replication,
security model for authentication and encryption, persistent client
caches and write back caching.
If you say Y here, your Linux box will be able to act as a Coda
*client*. You will need user level code as well, both for the client
and server. Servers are currently user level, i.e. need no kernel
support. Please read Documentation/filesystems/coda.txt and check
out the Coda home page http://www.coda.cs.cmu.edu .
If you want to compile the coda client support as a module ( = code
which can be inserted in and removed from the running kernel
whenever you want), say M here and read Documentation/modules.txt.
The module will be called coda.o.
NCP file system support (to mount NetWare volumes)
CONFIG_NCP_FS
NCP (NetWare Core Protocol) is a protocol that runs over IPX and is
used by Novell NetWare clients to talk to file servers. It is to IPX
what NFS is to TCP/IP, if that helps. Saying Y here allows you to
mount NetWare file server volumes and to access them just like any
other Unix directory. For details, please read the file
Documentation/filesystems/ncpfs.txt in the kernel source and the
IPX-HOWTO from http://www.linuxdoc.org/docs.html#howto .
You do not have to say Y here if you want your Linux box to act as a
file *server* for Novell NetWare clients.
General information about how to connect Linux, Windows machines and
Macs is on the WWW at http://www.eats.com/linux_mac_win.html .
If you want to compile this as a module ( = code which can be
inserted in and removed from the running kernel whenever you want),
say M here and read Documentation/modules.txt. The module will be
called ncpfs.o. Say N unless you are connected to a Novell network.
Packet signatures
CONFIG_NCPFS_PACKET_SIGNING
NCP allows packets to be signed for stronger security. If you want
security, say Y. Normal users can leave it off. To be able to use
packet signing you must use ncpfs > 2.0.12.
Proprietary file locking
CONFIG_NCPFS_IOCTL_LOCKING
Allows locking of records on remote volumes. Say N unless you have
special applications which are able to utilize this locking scheme.
Clear remove/delete inhibit when needed
CONFIG_NCPFS_STRONG
Allows manipulation of files flagged as Delete or Rename Inhibit. To
use this feature you must mount volumes with the ncpmount parameter
"-s" (ncpfs-2.0.12 and newer). Say Y unless you are not mounting
volumes with -f 444.
Use NFS namespace when available
CONFIG_NCPFS_NFS_NS
Allows you to utilize NFS namespace on NetWare servers. It brings
you case sensitive filenames. Say Y. You can disable it at
mount-time with the `-N nfs' parameter of ncpmount.
Use OS2/LONG namespace when available
CONFIG_NCPFS_OS2_NS
Allows you to utilize OS2/LONG namespace on NetWare servers.
Filenames in this namespace are limited to 255 characters, they are
case insensitive, and case in names is preserved. Say Y. You can
disable it at mount time with the -N os2 parameter of ncpmount.
Lowercase DOS filenames on LONG namespace volume
CONFIG_NCPFS_SMALLDOS
If you say Y here, every filename on a NetWare server volume using
the OS2/LONG namespace and created under DOS or on a volume using
DOS namespace will be converted to lowercase characters.
Saying N here will give you these filenames in uppercase.
This is only a cosmetic option since the OS2/LONG namespace is case
insensitive. The only major reason for this option is backward
compatibility when moving from DOS to OS2/LONG namespace support.
Long filenames (created by Win95) will not be affected.
This option does not solve the problem that filenames appear
differently under Linux and under Windows, since Windows does an
additional conversions on the client side. You can achieve similar
effects by saying Y to "Allow using of Native Language Support"
below.
Allow mounting of volume subdirectories
CONFIG_NCPFS_MOUNT_SUBDIR
Allows you to mount not only whole servers or whole volumes, but
also subdirectories from a volume. It can be used to reexport data
and so on. There is no reason to say N, so Y is recommended unless
you count every byte.
To utilize this feature you must use ncpfs-2.0.12 or newer.
NDS interserver authentication domains
CONFIG_NCPFS_NDS_DOMAINS
This allows storing NDS private keys in kernel space where they
can be used to authenticate another server as interserver NDS
accesses need it. You must use ncpfs-2.0.12.1 or newer to utilize
this feature. Say Y if you are using NDS connections to NetWare
servers. Do not say Y if security is primary for you because root
can read your session key (from /proc/kcore).
Allow using of Native Language Support
CONFIG_NCPFS_NLS
Allows you to use codepages and I/O charsets for file name
translation between the server file system and input/output. This
may be useful, if you want to access the server with other operating
systems, e.g. Windows 95. See also NLS for more Information.
To select codepages and I/O charsets use ncpfs-2.2.0.13 or newer.
Symbolic links and mode permission bits
CONFIG_NCPFS_EXTRAS
This enables the use of symbolic links and an execute permission
bit on NCPFS. The file server need not have long name space or NFS
name space loaded for these to work.
To use the new attributes, it is recommended to use the flags
'-f 600 -d 755' on the ncpmount command line.
nls codepage 437
CONFIG_NLS_CODEPAGE_437
The Microsoft fat file system family can deal with filenames in
native language character sets. These character sets are stored
in so-called DOS codepages. You need to include the appropriate
codepage if you want to be able to read/write these filenames on
DOS/Windows partitions correctly. This does apply to the filenames
only, not to the file contents. You can include several codepages;
say Y here if you want to include the DOS codepage that is used in
the United States and parts of Canada. This is recommended.
nls codepage 737
CONFIG_NLS_CODEPAGE_737
The Microsoft fat file system family can deal with filenames in
native language character sets. These character sets are stored
in so-called DOS codepages. You need to include the appropriate
codepage if you want to be able to read/write these filenames on
DOS/Windows partitions correctly. This does apply to the filenames
only, not to the file contents. You can include several codepages;
say Y here if you want to include the DOS codepage that is used for
Greek. If unsure, say N.
nls codepage 775
CONFIG_NLS_CODEPAGE_775
The Microsoft fat file system family can deal with filenames in
native language character sets. These character sets are stored
in so-called DOS codepages. You need to include the appropriate
codepage if you want to be able to read/write these filenames on
DOS/Windows partitions correctly. This does apply to the filenames
only, not to the file contents. You can include several codepages;
say Y here if you want to include the DOS codepage that is used
for the Baltic Rim Languages. If unsure, say N.
nls codepage 850
CONFIG_NLS_CODEPAGE_850
The Microsoft fat file system family can deal with filenames in
native language character sets. These character sets are stored in
so-called DOS codepages. You need to include the appropriate
codepage if you want to be able to read/write these filenames on
DOS/Windows partitions correctly. This does apply to the filenames
only, not to the file contents. You can include several codepages;
say Y here if you want to include the DOS codepage that is used for
much of Europe -- United Kingdom, Germany, Spain, Italy, and [add
more countries here]. It has some characters useful to many European
languages that are not part of the US codepage 437.
If unsure, say Y.
nls codepage 852
CONFIG_NLS_CODEPAGE_852
The Microsoft fat file system family can deal with filenames in
native language character sets. These character sets are stored in
so-called DOS codepages. You need to include the appropriate
codepage if you want to be able to read/write these filenames on
DOS/Windows partitions correctly. This does apply to the filenames
only, not to the file contents. You can include several codepages;
say Y here if you want to include the Latin 2 codepage used by DOS
for much of Central and Eastern Europe. It has all the required
characters for these languages: Albanian, Croatian, Czech, English,
Finnish, Hungarian, Irish, German, Polish, Romanian, Serbian (Latin
transcription), Slovak, Slovenian, and Sorbian.
nls codepage 855
CONFIG_NLS_CODEPAGE_855
The Microsoft fat file system family can deal with filenames in
native language character sets. These character sets are stored in
so-called DOS codepages. You need to include the appropriate
codepage if you want to be able to read/write these filenames on
DOS/Windows partitions correctly. This does apply to the filenames
only, not to the file contents. You can include several codepages;
say Y here if you want to include the DOS codepage for Cyrillic.
nls codepage 857
CONFIG_NLS_CODEPAGE_857
The Microsoft fat file system family can deal with filenames in
native language character sets. These character sets are stored in
so-called DOS codepages. You need to include the appropriate
codepage if you want to be able to read/write these filenames on
DOS/Windows partitions correctly. This does apply to the filenames
only, not to the file contents. You can include several codepages;
say Y here if you want to include the DOS codepage for Turkish.
nls codepage 860
CONFIG_NLS_CODEPAGE_860
The Microsoft fat file system family can deal with filenames in
native language character sets. These character sets are stored in
so-called DOS codepages. You need to include the appropriate
codepage if you want to be able to read/write these filenames on
DOS/Windows partitions correctly. This does apply to the filenames
only, not to the file contents. You can include several codepages;
say Y here if you want to include the DOS codepage for Portuguese.
nls codepage 861
CONFIG_NLS_CODEPAGE_861
The Microsoft fat file system family can deal with filenames in
native language character sets. These character sets are stored in
so-called DOS codepages. You need to include the appropriate
codepage if you want to be able to read/write these filenames on
DOS/Windows partitions correctly. This does apply to the filenames
only, not to the file contents. You can include several codepages;
say Y here if you want to include the DOS codepage for Icelandic.
nls codepage 862
CONFIG_NLS_CODEPAGE_862
The Microsoft fat file system family can deal with filenames in
native language character sets. These character sets are stored in
so-called DOS codepages. You need to include the appropriate
codepage if you want to be able to read/write these filenames on
DOS/Windows partitions correctly. This does apply to the filenames
only, not to the file contents. You can include several codepages;
say Y here if you want to include the DOS codepage for Hebrew.
nls codepage 863
CONFIG_NLS_CODEPAGE_863
The Microsoft fat file system family can deal with filenames in
native language character sets. These character sets are stored in
so-called DOS codepages. You need to include the appropriate
codepage if you want to be able to read/write these filenames on
DOS/Windows partitions correctly. This does apply to the filenames
only, not to the file contents. You can include several codepages;
say Y here if you want to include the DOS codepage for Canadian
French.
nls codepage 864
CONFIG_NLS_CODEPAGE_864
The Microsoft fat file system family can deal with filenames in
native language character sets. These character sets are stored in
so-called DOS codepages. You need to include the appropriate
codepage if you want to be able to read/write these filenames on
DOS/Windows partitions correctly. This does apply to the filenames
only, not to the file contents. You can include several codepages;
say Y here if you want to include the DOS codepage for Arabic.
nls codepage 865
CONFIG_NLS_CODEPAGE_865
The Microsoft fat file system family can deal with filenames in
native language character sets. These character sets are stored in
so-called DOS codepages. You need to include the appropriate
codepage if you want to be able to read/write these filenames on
DOS/Windows partitions correctly. This does apply to the filenames
only, not to the file contents. You can include several codepages;
say Y here if you want to include the DOS codepage for the Nordic
European countries.
nls codepage 866
CONFIG_NLS_CODEPAGE_866
The Microsoft fat file system family can deal with filenames in
native language character sets. These character sets are stored in
so-called DOS codepages. You need to include the appropriate
codepage if you want to be able to read/write these filenames on
DOS/Windows partitions correctly. This does apply to the filenames
only, not to the file contents. You can include several codepages;
say Y here if you want to include the DOS codepage for
Cyrillic/Russian.
nls codepage 869
CONFIG_NLS_CODEPAGE_869
The Microsoft fat file system family can deal with filenames in
native language character sets. These character sets are stored in
so-called DOS codepages. You need to include the appropriate
codepage if you want to be able to read/write these filenames on
DOS/Windows partitions correctly. This does apply to the filenames
only, not to the file contents. You can include several codepages;
say Y here if you want to include the DOS codepage for Greek.
###
### Why do we have two codepages for Greek and Cyrillic?
###
nls codepage 874
CONFIG_NLS_CODEPAGE_874
The Microsoft fat file system family can deal with filenames in
native language character sets. These character sets are stored in
so-called DOS codepages. You need to include the appropriate
codepage if you want to be able to read/write these filenames on
DOS/Windows partitions correctly. This does apply to the filenames
only, not to the file contents. You can include several codepages;
say Y here if you want to include the DOS codepage for Thai.
nls iso8859-1
CONFIG_NLS_ISO8859_1
If you want to display filenames with native language characters
from the Microsoft fat file system family or from JOLIET CDROMs
correctly on the screen, you need to include the appropriate
input/output character sets. Say Y here for the Latin 1 character
set, which covers most West European languages such as Albanian,
Catalan, Danish, Dutch, English, Faeroese, Finnish, French, German,
Galician, Irish, Icelandic, Italian, Norwegian, Portuguese, Spanish,
and Swedish. It is also the default for the US. If unsure, say Y.
nls iso8859-2
CONFIG_NLS_ISO8859_2
If you want to display filenames with native language characters
from the Microsoft fat file system family or from JOLIET CDROMs
correctly on the screen, you need to include the appropriate
input/output character sets. Say Y here for the Latin 2 character
set, which works for most Latin-written Slavic and Central European
languages: Czech, German, Hungarian, Polish, Rumanian, Croatian,
Slovak, Slovene.
nls iso8859-3
CONFIG_NLS_ISO8859_3
If you want to display filenames with native language characters
from the Microsoft fat file system family or from JOLIET CDROMs
correctly on the screen, you need to include the appropriate
input/output character sets. Say Y here for the Latin 3 character
set, which is popular with authors of Esperanto, Galician, Maltese,
and Turkish.
nls iso8859-4
CONFIG_NLS_ISO8859_4
If you want to display filenames with native language characters
from the Microsoft fat file system family or from JOLIET CDROMs
correctly on the screen, you need to include the appropriate
input/output character sets. Say Y here for the Latin 4 character
set which introduces letters for Estonian, Latvian, and
Lithuanian. It is an incomplete predecessor of Latin 6.
nls iso8859-5
CONFIG_NLS_ISO8859_5
If you want to display filenames with native language characters
from the Microsoft fat file system family or from JOLIET CDROMs
correctly on the screen, you need to include the appropriate
input/output character sets. Say Y here for ISO8859-5, a Cyrillic
character set with which you can type Bulgarian, Byelorussian,
Macedonian, Russian, Serbian, and Ukrainian. Note that the charset
KOI8-R is preferred in Russia.
nls iso8859-6
CONFIG_NLS_ISO8859_6
If you want to display filenames with native language characters
from the Microsoft fat file system family or from JOLIET CDROMs
correctly on the screen, you need to include the appropriate
input/output character sets. Say Y here for ISO8859-6, the Arabic
character set.
nls iso8859-7
CONFIG_NLS_ISO8859_7
If you want to display filenames with native language characters
from the Microsoft fat file system family or from JOLIET CDROMs
correctly on the screen, you need to include the appropriate
input/output character sets. Say Y here for ISO8859-7, the Modern
Greek character set.
nls iso8859-8
CONFIG_NLS_ISO8859_8
If you want to display filenames with native language characters
from the Microsoft fat file system family or from JOLIET CDROMs
correctly on the screen, you need to include the appropriate
input/output character sets. Say Y here for ISO8859-8, the Hebrew
character set.
nls iso8859-9
CONFIG_NLS_ISO8859_9
If you want to display filenames with native language characters
from the Microsoft fat file system family or from JOLIET CDROMs
correctly on the screen, you need to include the appropriate
input/output character sets. Say Y here for the Latin 5 character
set, and it replaces the rarely needed Icelandic letters in Latin 1
with the Turkish ones. Useful in Turkey.
nls iso8859-10
CONFIG_NLS_ISO8859_10
If you want to display filenames with native language characters
from the Microsoft fat file system family or from JOLIET CDROMs
correctly on the screen, you need to include the appropriate
input/output character sets. Say Y here for the Latin 6 character
set, which adds the last Inuit (Greenlandic) and Sami (Lappish)
letters that were missing in Latin 4 to cover the entire Nordic
area.
NLS ISO 8859-14 (Latin 8; Celtic)
CONFIG_NLS_ISO8859_14
If you want to display filenames with native language characters
from the Microsoft fat file system family or from JOLIET CDROMs
correctly on the screen, you need to include the appropriate
input/output character sets. Say Y here for the Latin 8 character
set, which adds the last accented vowels for Welsh (aka Cymraeg)
(and Manx Gaelic) hat were missing in Latin 1.
http://linux.speech.cymru.org/ has further information.
nls iso8859-15
CONFIG_NLS_ISO8859_15
If you want to display filenames with native language characters
from the Microsoft fat file system family or from JOLIET CDROMs
correctly on the screen, you need to include the appropriate
input/output character sets. Say Y here for the Latin 9 character
set, which covers most West European languages such as Albanian,
Catalan, Danish, Dutch, English, Estonian, Faeroese, Finnish,
French, German, Galician, Irish, Icelandic, Italian, Norwegian,
Portuguese, Spanish, and Swedish. Latin 9 is an update to
Latin 1 (ISO 8859-1) that removes a handful of rarely used
characters and instead adds support for Estonian, corrects the
support for French and Finnish, and adds the new Euro character. If
unsure, say Y.
nls koi8-r
CONFIG_NLS_KOI8_R
If you want to display filenames with native language characters
from the Microsoft fat file system family or from JOLIET CDROMs
correctly on the screen, you need to include the appropriate
input/output character sets. Say Y here for the preferred Russian
character set.
Virtual terminal
CONFIG_VT
If you say Y here, you will get support for terminal devices with
display and keyboard devices. These are called "virtual" because you
can run several virtual terminals (also called virtual consoles) on
one physical terminal. This is rather useful, for example one
virtual terminal can collect system messages and warnings, another
one can be used for a text-mode user session, and a third could run
an X session, all in parallel. Switching between virtual terminals
is done with certain key combinations, usually Alt-<function key>.
The setterm command ("man setterm") can be used to change the
properties (such as colors) of a virtual terminal.
You need at least one virtual terminal device in order to make use
of your keyboard and monitor. Therefore, only people configuring an
embedded system would want to say N here in order to save some
memory; the only way to log into such a system is then via a serial
or network connection.
If unsure, say Y, or else you won't be able to do much with your new
shiny Linux system :-)
Support for console on virtual terminal
CONFIG_VT_CONSOLE
The system console is the device which receives all kernel messages
and warnings and which allows logins in single user mode. If you
answer Y here, a virtual terminal (the device used to interact with
a physical terminal) can be used as system console. This is the most
common mode of operations, so you should say Y here unless you want
the kernel messages be output only to a serial port (in which case
you should say Y to "Console on serial port", below).
If you do say Y here, by default the currently visible virtual
terminal (/dev/tty0) will be used as system console. You can change
that with a kernel command line option such as "console=tty3" which
would use the third virtual terminal as system console. (Try "man
bootparam" or see the documentation of your boot loader (lilo or
loadlin) about how to pass options to the kernel at boot time. The
lilo procedure is also explained in the SCSI-HOWTO, available from
http://www.linuxdoc.org/docs.html#howto .)
If unsure, say Y.
Software generated cursor
CONFIG_SOFTCURSOR
If you say Y here, you'll be able to do lots of nice things with the
cursors of your virtual consoles -- for example turn them into
non-blinking block cursors which are more visible on laptop screens,
or change their colors depending on the virtual console they're on.
See Documentation/VGA-softcursor.txt for more information.
Support for PowerMac keyboard
CONFIG_MAC_KEYBOARD
This option allows you to use an ADB keyboard attached to your
machine. Note that this disables any other (ie. PS/2) keyboard
support, even if your machine is physically capable of using both at
the same time.
If you use an ADB keyboard (4 pin connector), say Y here.
If you use a PS/2 keyboard (6 pin connector), say N here.
Standard/generic serial support
CONFIG_SERIAL
This selects whether you want to include the driver for the standard
serial ports. The standard answer is Y. People who might say N here
are those that are setting up dedicated Ethernet WWW/FTP servers, or
users that have one of the various bus mice instead of a serial
mouse and don't intend to use their machine's standard serial port
for anything. (Note that the Cyclades and Stallion multi serial port
drivers do not need this driver built in for them to work.)
If you want to compile this driver as a module, say M here and read
Documentation/modules.txt. The module will be called serial.o.
[WARNING: Do not compile this driver as a module if you are using
non-standard serial ports, since the configuration information will
be lost when the driver is unloaded. This limitation may be lifted
in the future.]
BTW1: If you have a mouseman serial mouse which is not recognized by
the X window system, try running gpm first.
BTW2: If you intend to use a software modem (also called Winmodem)
under Linux, forget it. These modems are crippled and require
proprietary drivers which are only available under Windows.
Most people will say Y or M here, so that they can use serial mice,
modems and similar devices connecting to the standard serial ports.
Support for console on serial port
CONFIG_SERIAL_CONSOLE
If you say Y here, it will be possible to use a serial port as the
system console (the system console is the device which receives all
kernel messages and warnings and which allows logins in single user
mode). This could be useful if some terminal or printer is connected
to that serial port.
Even if you say Y here, the currently visible virtual console
(/dev/tty0) will still be used as the system console by default, but
you can alter that using a kernel command line option such as
"console=ttyS1". (Try "man bootparam" or see the documentation of
your boot loader (lilo or loadlin) about how to pass options to the
kernel at boot time. The lilo procedure is also explained in the
SCSI-HOWTO, available from
http://www.linuxdoc.org/docs.html#howto .)
If you don't have a VGA card installed and you say Y here, the
kernel will automatically use the first serial line, /dev/ttyS0, as
system console.
If unsure, say N.
Support for PowerMac serial ports
CONFIG_MAC_SERIAL
If you have Macintosh style serial ports (8 pin mini-DIN), say Y
here. If you also have regular serial ports and enable the driver
for them, you can't currently use the serial console feature.
Comtrol Rocketport support
CONFIG_ROCKETPORT
This is a driver for the Comtrol Rocketport cards which provide
multiple serial ports. You would need something like this to connect
more than two modems to your Linux box, for instance in order to
become a dial-in server.
If you want to compile this driver as a module, say M here and read
Documentation/modules.txt. The module will be called rocket.o.
Digiboard Intelligent async support
CONFIG_DIGIEPCA
This is a driver for Digi International's Xx, Xeve, and Xem series
of cards which provide multiple serial ports. You would need
something like this to connect more than two modems to your Linux
box, for instance in order to become a dial-in server. This driver
supports the original PC (ISA) boards as well as PCI, and EISA. If
you have a card like this, say Y here and read the file
Documentation/digiepca.txt.
NOTE: There is another, separate driver for the Digiboard PC boards:
"Digiboard PC/Xx Support" below. You should (and can) only select
one of the two drivers.
If you want to compile this driver as a module, say M here and read
Documentation/modules.txt. The module will be called epca.o.
Digiboard PC/Xx Support
CONFIG_DIGI
This is a driver for the Digiboard PC/Xe, PC/Xi, and PC/Xeve cards
that give you many serial ports. You would need something like this
to connect more than two modems to your Linux box, for instance in
order to become a dial-in server. If you have a card like that, say
Y here and read the file Documentation/digiboard.txt.
If you want to compile this driver as a module, say M here and read
Documentation/modules.txt. The module will be called pcxx.o.
SDL RISCom/8 card support
CONFIG_RISCOM8
This is a driver for the SDL Communications RISCom/8 multiport card,
which gives you many serial ports. You would need something like
this to connect more than two modems to your Linux box, for instance
in order to become a dial-in server. If you have a card like that,
say Y here and read the file Documentation/riscom8.txt.
Also it's possible to say M here and compile this driver as kernel
loadable module; the module will be called riscom8.o.
Computone IntelliPort Plus serial support
CONFIG_COMPUTONE
This driver supports the entire family of Intelliport II/Plus
controllers with the exception of the MicroChannel controllers. It
does not support products previous to the Intelliport II. These are
multiport cards, which give you many serial ports. You would need
something like this to connect more than two modems to your Linux
box, for instance in order to become a dial-in server. If you have a
card like that, say Y here and read Documentation/computone.txt.
If you want to compile this as a module ( = code which can be
inserted in and removed from the running kernel whenever you want),
say M here and read Documentation/modules.txt. You will get two
modules called ip2.o and ip2main.o.
Specialix IO8+ card support
CONFIG_SPECIALIX
This is a driver for the Specialix IO8+ multiport card (both the
ISA and the PCI version) which gives you many serial ports. You
would need something like this to connect more than two modems to
your Linux box, for instance in order to become a dial-in server.
If you have a card like that, say Y here and read the file
Documentation/specialix.txt. Also it's possible to say M here and
compile this driver as kernel loadable module which will be called
specialix.o.
Specialix DTR/RTS pin is RTS
CONFIG_SPECIALIX_RTSCTS
The Specialix card can only support either RTS or DTR. If you say N
here, the driver will use the pin as "DTR" when the tty is in
software handshake mode. If you say Y here or hardware handshake is
on, it will always be RTS. Read the file Documentation/specialix.txt
for more information.
Cyclades async mux support
CONFIG_CYCLADES
This is a driver for a card that gives you many serial ports. You
would need something like this to connect more than two modems to
your Linux box, for instance in order to become a dial-in server.
For information about the Cyclades-Z card, read
drivers/char/README.cycladesZ.
As of 1.3.9x kernels, this driver's minor numbers start at 0 instead
of 32.
If you want to compile this as a module ( = code which can be
inserted in and removed from the running kernel whenever you want),
say M here and read Documentation/modules.txt. The module will be
called cyclades.o.
If you haven't heard about it, it's safe to say N.
Cyclades-Z interrupt mode operation (EXPERIMENTAL)
CONFIG_CYZ_INTR
The Cyclades-Z family of multiport cards allows 2 (two) driver
op modes: polling and interrupt. In polling mode, the driver will
check the status of the Cyclades-Z ports every certain amount of
time (which is called polling cycle and is configurable). In
interrupt mode, it will use an interrupt line (IRQ) in order to check
the status of the Cyclades-Z ports. The default op mode is polling.
If unsure, say N.
Stallion multiport serial support
CONFIG_STALDRV
Stallion cards give you many serial ports. You would need something
like this to connect more than two modems to your Linux box, for
instance in order to become a dial-in server. If you say Y here, you
will be asked for your specific card model in the next questions.
Make sure to read drivers/char/README.stallion in this case. If you
have never heard about all this, it's safe to say N.
Stallion EasyIO or EC8/32 support
CONFIG_STALLION
If you have an EasyIO or EasyConnection 8/32 multiport Stallion
card, then this is for you; say Y. Make sure to read
Documentation/stallion.txt.
If you want to compile this as a module ( = code which can be
inserted in and removed from the running kernel whenever you want),
say M here and read Documentation/modules.txt. The module will be
called stallion.o.
Stallion EC8/64, ONboard, Brumby support
CONFIG_ISTALLION
If you have an EasyConnection 8/64, ONboard, Brumby or Stallion
serial multiport card, say Y here. Make sure to read
Documentation/stallion.txt.
To compile it as a module ( = code which can be inserted in and
removed from the running kernel whenever you want), say M here and
read Documentation/modules.txt. The module will be called
istallion.o.
Microgate SyncLink adapter support
CONFIG_SYNCLINK
Provides support for the SyncLink ISA and PCI
multiprotocol serial adapters. These adapters
support asynchronous and HDLC bit synchronous
communication up to 10Mbps (PCI adapter).
This driver can only be built as a module ( = code which can be
inserted in and removed from the running kernel whenever you want).
The module will be called synclink.o. If you want to do that, say M
here.
Synchronous HDLC line discipline support
CONFIG_N_HDLC
Allows synchronous HDLC communications with tty device drivers that
support synchronous HDLC such as the Microgate SyncLink adapter.
This driver can only be built as a module ( = code which can be
inserted in and removed from the running kernel whenever you want).
The module will be called n_hdlc.o. If you want to do that, say M
here.
Specialix SX (and SI) card support
CONFIG_SX
This is a driver for the SX and SI multiport serial cards.
Please read the file Documentation/sx.txt for details.
This driver can only be built as a module ( = code which can be
inserted in and removed from the running kernel whenever you want).
The module will be called sx.o. If you want to do that, say M here.
Hayes ESP serial port support
CONFIG_ESPSERIAL
This is a driver which supports Hayes ESP serial ports. Both single
port cards and multiport cards are supported. Make sure to read
Documentation/hayes-esp.txt.
To compile this driver as a module ( = code which can be inserted in
and removed from the running kernel whenever you want), say M here
and read Documentation/modules.txt. The module will be called esp.o.
If unsure, say N.
Multi-Tech multiport card support (EXPERIMENTAL)
CONFIG_ISI
This is a driver for the Multi-Tech cards which provide several
serial ports. The driver is experimental and can currently only be
built as a module ( = code which can be inserted in and removed from
the running kernel whenever you want). Please read
Documentation/modules.txt. The module will be called isicom.o
Unix98 PTY support
CONFIG_UNIX98_PTYS
A pseudo terminal (PTY) is a software device consisting of two
halves: a master and a slave. The slave device behaves identical to
a physical terminal; the master device is used by a process to
read data from and write data to the slave, thereby emulating a
terminal. Typical programs for the master side are telnet servers
and xterms.
Linux has traditionally used the BSD-like names /dev/ptyxx for
masters and /dev/ttyxx for slaves of pseudo terminals. This scheme
has a number of problems. The GNU C library glibc 2.1 and later,
however, supports the Unix98 naming standard: in order to acquire a
pseudo terminal, a process opens /dev/ptmx; the number of the pseudo
terminal is then made available to the process and the pseudo
terminal slave can be accessed as /dev/pts/<number>. What was
traditionally /dev/ttyp2 will then be /dev/pts/2, for example.
The entries in /dev/pts/ are created on the fly by a virtual
file system; therefore, if you say Y here you should say Y to
"/dev/pts file system for Unix98 PTYs" as well.
If you want to say Y here, you need to have the C library glibc 2.1
or later (equal to libc-6.1, check with "ls -l /lib/libc.so.*").
Read the instructions in Documentation/Changes pertaining to pseudo
terminals. It's safe to say N.
Maximum number of Unix98 PTYs in use (0-2048)
CONFIG_UNIX98_PTY_COUNT
The maximum number of Unix98 PTYs that can be used at any one time.
The default is 256, and should be enough for desktop systems. Server
machines which support incoming telnet/rlogin/ssh connections and/or
serve several X terminals may want to increase this: every incoming
connection and every xterm uses up one PTY.
When not in use, each additional set of 256 PTYs occupy
approximately 8 KB of kernel memory on 32-bit architectures.
Parallel printer support
CONFIG_PRINTER
If you intend to attach a printer to the parallel port of your Linux
box (as opposed to using a serial printer; if the connector at the
printer has 9 or 25 holes ["female"], then it's serial), say Y. Also
read the Printing-HOWTO, available from
http://www.linuxdoc.org/docs.html#howto .
It is possible to share one parallel port among several devices
(e.g. printer and ZIP drive) and it is safe to compile the
corresponding drivers into the kernel. If you want to compile this
driver as a module however ( = code which can be inserted in and
removed from the running kernel whenever you want), say M here and
read Documentation/modules.txt and Documentation/parport.txt. The
module will be called lp.o.
If you have several parallel ports, you can specify which ports to
use with the "lp" kernel command line option. (Try "man bootparam"
or see the documentation of your boot loader (lilo or loadlin) about
how to pass options to the kernel at boot time. The lilo procedure
is also explained in the SCSI-HOWTO, available from
http://www.linuxdoc.org/docs.html#howto .) The syntax of the "lp"
command line option can be found in drivers/char/lp.c.
If you have more than 3 printers, you need to increase the LP_NO
variable in lp.c.
Support for console on line printer
CONFIG_LP_CONSOLE
If you want kernel messages to be printed out as they occur, you
can have a console on the printer. This option adds support for
doing that; to actually get it to happen you need to pass the
option "console=lp" to the kernel at boot time.
Note that kernel messages can get lost if the printer is out of
paper (or off, or unplugged, or too busy..), but this behavior
can be changed. See drivers/char/lp.c (do this at your own risk).
If unsure, say N.
Bus Mouse Support
CONFIG_BUSMOUSE
Say Y here if your machine has a bus mouse as opposed to a serial
mouse. Most people have a regular serial MouseSystem or
Microsoft mouse (made by Logitech) that plugs into a COM port
(rectangular with 9 or 25 pins). These people say N here. If you
have something else, read the Busmouse-HOWTO, available from
http://www.linuxdoc.org/docs.html#howto , and say Y here.
If you have a laptop, you either have to check the documentation or
experiment a bit to find out whether the trackball is a serial mouse
or not; it's best to say Y here for you.
This is the generic bus mouse driver code. If you have a bus mouse,
you will have to say Y here and also to the specific driver for your
mouse below.
This code is also available as a module ( = code which can be
inserted in and removed from the running kernel whenever you want).
The module will be called busmouse.o. If you want to compile it as a
module, say M here and read Documentation/modules.txt.
Mouse Support (not serial and bus mice)
CONFIG_MOUSE
This is for machines with a mouse which is neither a serial nor a
bus mouse. Examples are PS/2 mice (such as the track balls on some
laptops) and some digitizer pads. Most people have a regular serial
MouseSystem or Microsoft mouse (made by Logitech) that plugs into a
COM port (rectangular with 9 or 25 pins). These people say N here.
If you have something else, read the Busmouse-HOWTO, available from
http://www.linuxdoc.org/docs.html#howto . This HOWTO contains
information about all non-serial mice, not just bus mice.
If you have a laptop, you either have to check the documentation or
experiment a bit to find out whether the trackball is a serial mouse
or not; it's best to say Y here for you.
Note that the answer to this question won't directly affect the
kernel: saying N will just cause this configure script to skip all
the questions about non-serial mice. If unsure, say Y.
Logitech busmouse support
CONFIG_LOGIBUSMOUSE
Logitech mouse connected to a proprietary interface card. It's
generally a round connector with 9 pins. Note that the newer mice
made by Logitech don't use the Logitech protocol anymore; for those,
you don't need this option. You want to read the Busmouse-HOWTO ,
available from http://www.linuxdoc.org/docs.html#howto .
If you want to compile this as a module ( = code which can be
inserted in and removed from the running kernel whenever you want),
say M here and read Documentation/modules.txt. The module will be
called busmouse.o. If you are unsure, say N and read the HOWTO
nevertheless: it will tell you what you have.
PS/2 mouse (aka "auxiliary device") support
CONFIG_PSMOUSE
The PS/2 mouse connects to a special mouse port that looks much like
the keyboard port (small circular connector with 6 pins). This way,
the mouse does not use any serial ports. This port can also be used
for other input devices like light pens, tablets, keypads. Compaq,
AST and IBM all use this as their mouse port on currently shipping
machines. The trackballs of some laptops are PS/2 mice also. In
particular, the C&T 82C710 mouse on TI Travelmates is a PS/2 mouse.
Although PS/2 mice are not technically bus mice, they are explained
in detail in the Busmouse-HOWTO, available from
http://www.linuxdoc.org/docs.html#howto .
When using a PS/2 mouse, you can get problems if you want to use the
mouse both on the Linux console and under X. Using the "-R" option
of the Linux mouse managing program gpm (available from
ftp://metalab.unc.edu/pub/Linux/system/mouse ) solves this
problem, or you can get the "mconv2" utility from the same location.
C&T 82C710 mouse port support (as on TI Travelmate)
CONFIG_82C710_MOUSE
This is a certain kind of PS/2 mouse used on the TI Travelmate. If
you are unsure, try first to say N here and come back if the mouse
doesn't work. Read the Busmouse-HOWTO, available from
http://www.linuxdoc.org/docs.html#howto .
PC110 digitizer pad support
CONFIG_PC110_PAD
This drives the digitizer pad on the IBM PC110 palmtop. It can turn
the digitizer pad into a PS/2 mouse emulation with tap gestures or
into an absolute pad.
If you want to compile this as a module ( = code which can be
inserted in and removed from the running kernel whenever you want),
say M here and read Documentation/modules.txt. The module will be
called pc110pad.o.
Microsoft busmouse support
CONFIG_MS_BUSMOUSE
These animals (also called Inport mice) are connected to an
expansion board using a round connector with 9 pins. If this is what
you have, say Y and read the Busmouse-HOWTO, available from
http://www.linuxdoc.org/docs.html#howto .
If you are unsure, say N and read the HOWTO nevertheless: it will
tell you what you have. Also be aware that several vendors talk
about 'Microsoft busmouse' and actually mean PS/2 busmouse -- so
count the pins on the connector.
If you want to compile this as a module ( = code which can be
inserted in and removed from the running kernel whenever you want),
say M here and read Documentation/modules.txt. The module will be
called msbusmouse.o.
Apple Desktop Bus mouse support
CONFIG_ADBMOUSE
Say Y here if you have this type of bus mouse (4 pin connector) as
is common on Macintoshes. You may want to read the Busmouse-HOWTO,
available from http://www.linuxdoc.org/docs.html#howto .
If you want to compile this as a module ( = code which can be
inserted in and removed from the running kernel whenever you want),
say M here and read Documentation/modules.txt. The module will be
called adbmouse.o.
ATIXL busmouse support
CONFIG_ATIXL_BUSMOUSE
This is a rare type of busmouse that is connected to the back of an
ATI video card. Say Y if you have one of those. Note however that
most mice by ATI are actually Microsoft busmice; you should say Y to
"Microsoft busmouse support" above if you have one of those. Read
the Busmouse-HOWTO, available from
http://www.linuxdoc.org/docs.html#howto .
If you want to compile this as a module ( = code which can be
inserted in and removed from the running kernel whenever you want),
say M here and read Documentation/modules.txt. The module will be
called atixlmouse.o.
If you are unsure, say N and read the HOWTO nevertheless: it will
tell you what you have.
QIC-02 tape support
CONFIG_QIC02_TAPE
If you have a non-SCSI tape drive like that, say Y. Or, if you want
to compile this driver as a module ( = code which can be inserted in
and removed from the running kernel whenever you want), say M here
and read Documentation/modules.txt. The module will be called
tpqic02.o.
Do you want runtime configuration for QIC-02
CONFIG_QIC02_DYNCONF
You can either configure this driver once and for all by editing a
header file (include/linux/tpqic02.h), in which case you should
say N, or you can fetch a program via anonymous FTP which is able
to configure this driver during runtime. The program to do this is
called 'qic02conf' and it is part of the tpqic02-support-X.Y.tar.gz
support package.
If you want to use the qic02conf program, say Y.
Floppy tape drive (QIC-80/40/3010/3020/TR-1/TR-2/TR-3) support
CONFIG_FTAPE
If you have a tape drive that is connected to your floppy
controller, say Y here.
Some tape drives (like the Seagate "Tape Store 3200" or the Iomega
"Ditto 3200" or the Exabyte "Eagle TR-3") come with a "high speed"
controller of their own. These drives (and their companion
controllers) are also supported if you say Y here.
If you have a special controller (such as the CMS FC-10, FC-20,
Mountain Mach-II, or any controller that is based on the Intel 82078
FDC like the high speed controllers by Seagate and Exabyte and
Iomega's "Ditto Dash") you must configure it by selecting the
appropriate entries from the "Floppy tape controllers" sub-menu
below and possibly modify the default values for the IRQ and DMA
channel and the IO base in ftape's configuration menu.
If you want to use your floppy tape drive on a PCI-bus based system,
please read the file drivers/char/ftape/README.PCI.
The ftape kernel driver is also available as a runtime loadable
module ( = code which can be inserted in and removed from the
running kernel whenever you want). If you want to compile it as a
module, say M here and read Documentation/modules.txt. The module
will be called ftape.o.
Note that the Ftape-HOWTO is out of date (sorry) and documents the
older version 2.08 of this software but still contains useful
information. There is a web page with more recent documentation at
http://www.math1.rwth-aachen.de/~heine/ftape/ . This page
always contains the latest release of the ftape driver and useful
information (backup software, ftape related patches and
documentation, FAQ). Note that the file system interface has changed
quite a bit compared to previous versions of ftape. Please read
Documentation/ftape.txt.
The file system interface for ftape
CONFIG_ZFTAPE
Normally, you want to say Y or M. DON'T say N here or you
WON'T BE ABLE TO USE YOUR FLOPPY TAPE DRIVE.
The ftape module itself no longer contains the routines necessary
to interface with the kernel VFS layer (i.e. to actually write data
to and read data from the tape drive). Instead the file system
interface (i.e. the hardware independent part of the driver) has
been moved to a separate module.
If you say M zftape will be compiled as a runtime loadable
module ( = code which can be inserted in and removed from the
running kernel whenever you want). In this case you should read
Documentation/modules.txt. The module will be called zftape.o.
Regardless of whether you say Y or M here, an additional runtime
loadable module called `zft-compressor.o' which contains code to
support user transparent on-the-fly compression based on Ross
William's lzrw3 algorithm will be produced. If you have enabled the
kernel module loader (i.e. have said Y to "Kernel module loader
support", above) then `zft-compressor.o' will be loaded
automatically by zftape when needed.
Despite its name, zftape does NOT use compression by default. The
file Documentation/ftape.txt contains a short description of the
most important changes in the file system interface compared to
previous versions of ftape. The ftape home page
http://www-math.math.rwth-aachen.de/~LBFM/claus/ftape/ contains
further information.
IMPORTANT NOTE: zftape can read archives created by previous
versions of ftape and provide file mark support (i.e. fast skipping
between tape archives) but previous version of ftape will lack file
mark support when reading archives produced by zftape.
Default block size for zftape
CONFIG_ZFT_DFLT_BLK_SZ
If unsure leave this at its default value, i.e. 10240. Note that
you specify only the default block size here. The block size can be
changed at run time using the MTSETBLK tape operation with the
MTIOCTOP ioctl (i.e. with "mt -f /dev/qft0 setblk #BLKSZ" from the
shell command line).
The probably most striking difference between zftape and previous
versions of ftape is the fact that all data must be written or read
in multiples of a fixed block size. The block size defaults to
10240 which is what GNU tar uses. The values for the block size
should be either 1 or multiples of 1024 up to a maximum value of
63488 (i.e. 62 K). If you specify `1' then zftape's builtin
compression will be disabled.
Reasonable values are `10240' (GNU tar's default block size),
`5120' (afio's default block size), `32768' (default block size some
backup programs assume for SCSI tape drives) or `1' (no restriction
on block size, but disables builtin compression).
Number of DMA buffers
CONFIG_FT_NR_BUFFERS
Please leave this at `3' unless you REALLY know what you are doing.
It is not necessary to change this value. Values below 3 make the
proper use of ftape impossible, values greater than 3 are a waste of
memory. You can change the amount of DMA memory used by ftape at
runtime with "mt -f /dev/qft0 setdrvbuffer #NUMBUFFERS". Each buffer
wastes 32 KB of memory. Please note that this memory cannot be
swapped out.
Procfs entry for ftape
CONFIG_FT_PROC_FS
Optional. Saying Y will result in creation of a directory
`/proc/ftape' under the proc file system. The files can be viewed
with your favorite pager (i.e. use "more /proc/ftape/history" or
"less /proc/ftape/history" or simply "cat /proc/ftape/history"). The
file will contain some status information about the inserted
cartridge, the kernel driver, your tape drive, the floppy disk
controller and the error history for the most recent use of the
kernel driver. Saying Y will enlarge the size of the ftape driver
by approximately 2 KB.
WARNING: When compiling ftape as a module (i.e. saying M to
"Floppy tape drive") it is dangerous to use ftape's proc file system
interface. Accessing `/proc/ftape' while the module is unloaded will
result in a kernel Oops. This cannot be fixed from inside ftape.
Controlling the amount of debugging output of ftape
CONFIG_FT_NORMAL_DEBUG
This option controls the amount of debugging output the ftape driver
is ABLE to produce; it does not increase or diminish the debugging
level itself. If unsure, leave this at its default setting,
i.e. choose "Normal".
Ftape can print lots of debugging messages to the system console
resp. kernel log files. Reducing the amount of possible debugging
output reduces the size of the kernel module by some KB, so it might
be a good idea to use "None" for emergency boot floppies.
If you want to save memory then the following strategy is
recommended: leave this option at its default setting "Normal" until
you know that the driver works as expected, afterwards reconfigure
the kernel, this time specifying "Reduced" or "None" and recompile
and install the kernel as usual. Note that choosing "Excessive"
debugging output does not increase the amount of debugging output
printed to the console but only makes it possible to produce
"Excessive" debugging output.
Please read Documentation/ftape.txt for a short description
how to control the amount of debugging output.
The floppy drive controller for ftape
CONFIG_FT_STD_FDC
Only change this setting if you have a special controller. If you
didn't plug any add-on card into your computer system but just
plugged the floppy tape cable into the already existing floppy drive
controller then you don't want to change the default setting,
i.e. choose "Standard".
Choose "MACH-2" if you have a Mountain Mach-2 controller.
Choose "FC-10/FC-20" if you have a Colorado FC-10 or FC-20
controller.
Choose "Alt/82078" if you have another controller that is located at
an IO base address different from the standard floppy drive
controller's base address of `0x3f0', or uses an IRQ (interrupt)
channel different from `6', or a DMA channel different from
`2'. This is necessary for any controller card that is based on
Intel's 82078 FDC such as Seagate's, Exabyte's and Iomega's "high
speed" controllers.
If you choose something other than "Standard" then please make
sure that the settings for the IO base address and the IRQ and DMA
channel in the configuration menus below are correct. Use the manual
of your tape drive to determine the correct settings!
If you are already successfully using your tape drive with another
operating system then you definitely should use the same settings
for the IO base, the IRQ and DMA channel that have proven to work
with that other OS.
Note that this menu lets you specify only the default setting for
the hardware setup. The hardware configuration can be changed at
boot time (when ftape is compiled into the kernel, i.e. if you
have said Y to "Floppy tape drive") or module load time (i.e. if you
have said M to "Floppy tape drive").
Please read also the file Documentation/ftape.txt which
contains a short description of the parameters that can be set at
boot or load time. If you want to use your floppy tape drive on a
PCI-bus based system, please read the file
drivers/char/ftape/README.PCI.
IO base of the floppy disk controller used with Ftape
CONFIG_FT_FDC_BASE
You don't need to specify a value if the following default
settings for the base IO address are correct:
<<< MACH-2 : 0x1E0 >>>
<<< FC-10/FC-20: 0x180 >>>
<<< Secondary : 0x370 >>>
Secondary refers to a secondary FDC controller like the "high speed"
controllers delivered by Seagate or Exabyte or Iomega's Ditto Dash.
Please make sure that the setting for the IO base address
specified here is correct. USE THE MANUAL OF YOUR TAPE DRIVE OR
CONTROLLER CARD TO DETERMINE THE CORRECT SETTING. If you are already
successfully using the tape drive with another operating system then
you definitely should use the same settings for the IO base that has
proven to work with that other OS.
Note that this menu lets you specify only the default setting for
the IO base. The hardware configuration can be changed at boot time
(when ftape is compiled into the kernel, i.e. if you specified Y to
"Floppy tape drive") or module load time (i.e. if you have said M to
"Floppy tape drive").
Please read also the file Documentation/ftape.txt which contains a
short description of the parameters that can be set at boot or load
time.
IRQ channel for the floppy disk controller used with Ftape
CONFIG_FT_FDC_IRQ
You don't need to specify a value if the following default
settings for the interrupt channel are correct:
<<< MACH-2 : 6 >>>
<<< FC-10/FC-20: 9 >>>
<<< Secondary : 6 >>>
Secondary refers to secondary a FDC controller like the "high speed"
controllers delivered by Seagate or Exabyte or Iomega's Ditto Dash.
Please make sure that the setting for the IO base address
specified here is correct. USE THE MANUAL OF YOUR TAPE DRIVE OR
CONTROLLER CARD TO DETERMINE THE CORRECT SETTING. If you are already
successfully using the tape drive with another operating system then
you definitely should use the same settings for the IO base that has
proven to work with that other OS.
Note that this menu lets you specify only the default setting for
the IRQ channel. The hardware configuration can be changed at boot
time (when ftape is compiled into the kernel, i.e. if you said Y to
"Floppy tape drive") or module load time (i.e. if you said M to
"Floppy tape drive").
Please read also the file Documentation/ftape.txt which contains a
short description of the parameters that can be set at boot or load
time.
DMA channel for the floppy disk controller used with Ftape
CONFIG_FT_FDC_DMA
You don't need to specify a value if the following default
settings for the DMA channel are correct:
<<< MACH-2 : 2 >>>
<<< FC-10/FC-20: 3 >>>
<<< Secondary : 2 >>>
Secondary refers to a secondary FDC controller like the "high speed"
controllers delivered by Seagate or Exabyte or Iomega's Ditto Dash.
Please make sure that the setting for the IO base address
specified here is correct. USE THE MANUAL OF YOUR TAPE DRIVE OR
CONTROLLER CARD TO DETERMINE THE CORRECT SETTING. If you are already
successfully using the tape drive with another operating system then
you definitely should use the same settings for the IO base that has
proven to work with that other OS.
Note that this menu lets you specify only the default setting for
the DMA channel. The hardware configuration can be changed at boot
time (when ftape is compiled into the kernel, i.e. if you said Y to
"Floppy tape drive") or module load time (i.e. if you said M to
"Floppy tape drive").
Please read also the file Documentation/ftape.txt which contains a
short description of the parameters that can be set at boot or load
time.
FDC FIFO Threshold before requesting DMA service
CONFIG_FT_FDC_THR
Set the FIFO threshold of the FDC. If this is higher the DMA
controller may serve the FDC after a higher latency time. If this is
lower, fewer DMA transfers occur leading to less bus contention.
You may try to tune this if ftape annoys you with "reduced data
rate because of excessive overrun errors" messages. However, this
doesn't seem to have too much effect.
If unsure, don't touch the initial value, i.e. leave it at "8".
FDC maximum data rate
CONFIG_FT_FDC_MAX_RATE
With some motherboard/FDC combinations ftape will not be able to
run your FDC/tape drive combination at the highest available
speed. If this is the case you'll encounter "reduced data rate
because of excessive overrun errors" messages and lots of retries
before ftape finally decides to reduce the data rate.
In this case it might be desirable to tell ftape beforehand that
it need not try to run the tape drive at the highest available
speed. If unsure, leave this disabled, i.e. leave it at 2000
bits/sec.
Direct Rendering Manager (XFree86 DRI support)
CONFIG_DRM
Kernel-level support for the Direct Rendering Infrastructure (DRI)
introduced in XFree86 4.x. These modules provide support for
synchronization, security, and DMA transfers. Select the module that
provides support for your graphics card.
tdfx Direct Rendering Manager (XFree86 DRI support)
CONFIG_DRM_TDFX
Choose M here if you have a 3dfx Banshee/Voodoo3 graphics card.
3dlabs GMX 2000 Direct Rendering Driver (XFree86 DRI support)
CONFIG_DRM_GAMMA
Choose M here if you have a 3dlabs GMX 2000 graphics card.
MTRR control and configuration
CONFIG_MTRR
On Intel P6 family processors (Pentium Pro, Pentium II and later)
the Memory Type Range Registers (MTRRs) may be used to control
processor access to memory ranges. This is most useful when you have
a video (VGA) card on a PCI or AGP bus. Enabling write-combining
allows bus write transfers to be combined into a larger transfer
before bursting over the PCI/AGP bus. This can increase performance
of image write operations 2.5 times or more. This option creates a
/proc/mtrr file which may be used to manipulate your
MTRRs. Typically the X server should use this. This should have a
reasonably generic interface so that similar control registers on
other processors can be easily supported.
The Cyrix 6x86, 6x86MX and M II processors have Address Range
Registers (ARRs) which provide a similar functionality to MTRRs. For
these, the ARRs are used to emulate the MTRRs, which means that it
makes sense to say Y here for these processors as well.
The AMD K6-2 (stepping 8 and above) and K6-3 processors have two
MTRRs. The Centaur C6 (WinChip) has 8 MCRs, allowing
write-combining. All of these processors are supported by this code.
The Centaur C6 (WinChip) has 8 MCRs, allowing write-combining. These
are supported.
Saying Y here also fixes a problem with buggy SMP BIOSes which only
set the MTRRs for the boot CPU and not the secondary CPUs. This can
lead to all sorts of problems.
You can safely say Y even if your machine doesn't have MTRRs, you'll
just add about 9K to your kernel.
See Documentation/mtrr.txt for more information.
Main CPU frequency, only for DEC alpha machine
CONFIG_FT_ALPHA_CLOCK
On some DEC Alpha machines the CPU clock frequency cannot be
determined automatically, so you need to specify it here ONLY if
running a DEC Alpha, otherwise this setting has no effect.
Zilog serial support
CONFIG_SUN_ZS
This driver does not exist at this point, so you might as well
say N.
Double Talk PC internal speech card support
CONFIG_DTLK
This driver is for the DoubleTalk PC, a speech synthesizer
manufactured by RC Systems (http://www.rcsys.com/ ). It is also
called the `internal DoubleTalk'. If you want to compile this as a
module ( = code which can be inserted in and removed from the
running kernel whenever you want), say M here and read
Documentation/modules.txt. The module will be called dtlk.o.
Siemens R3964 serial protocol support
CONFIG_R3964
This driver allows synchronous communication with devices using the
Siemens R3964 packet protocol. Unless you are dealing with special
hardware like PLCs, you are unlikely to need this.
To compile this driver as a module ( = code which can be inserted in
and removed from the running kernel whenever you want), say M here
and read Documentation/modules.txt. The module will be called
n_r3964.o.
If unsure, say N.
Applicom intelligent fieldbus card support
CONFIG_APPLICOM
This driver provides the kernel-side support for the intelligent
fieldbus cards made by Applicom International. More information
about these cards can be found on the WWW at the address
http://www.applicom-int.com/ , or by email from David Woodhouse
<dwmw2@mvhi.com>.
To compile this driver as a module ( = code which can be inserted in
and removed from the running kernel whenever you want), say M here
and read Documentation/modules.txt. The module will be called
applicom.o.
If unsure, say N.
Enter S1 for sleep (EXPERIMENTAL)
CONFIG_ACPI_S1_SLEEP
This enable ACPI compliant devices to enter level 1 of ACPI saving
power levels. Basically, this will let them entering in sleep mode.
Advanced Power Management
CONFIG_APM
APM is a BIOS specification for saving power using several different
techniques. This is mostly useful for battery powered laptops with
APM compliant BIOSes. If you say Y here, the system time will be
reset after a RESUME operation, the /proc/apm device will provide
battery status information, and user-space programs will receive
notification of APM "events" (e.g. battery status change).
If you select "Y" here, you can disable actual use of the APM
BIOS by passing the "apm=off" option to the kernel at boot time.
Note that the APM support is almost completely disabled for
machines with more than one CPU.
Supporting software is available; for more information, read the
Battery Powered Linux mini-HOWTO, available from
http://www.linuxdoc.org/docs.html#howto .
This driver does not spin down disk drives (see the hdparm(8)
manpage ("man 8 hdparm") for that), and it doesn't turn off
VESA-compliant "green" monitors.
This driver does not support the TI 4000M TravelMate and the ACER
486/DX4/75 because they don't have compliant BIOSes. Many "green"
desktop machines also don't have compliant BIOSes, and this driver
may cause those machines to panic during the boot phase.
If you are running Linux on a laptop, you may also want to read the
Linux Laptop home page on the WWW at
http://www.cs.utexas.edu/users/kharker/linux-laptop/ .
Generally, if you don't have a battery in your machine, there isn't
much point in using this driver and you should say N. If you get
random kernel OOPSes or reboots that don't seem to be related to
anything, try disabling/enabling this option (or disabling/enabling
APM in your BIOS).
Some other things you should try when experiencing seemingly random,
"weird" problems:
1) make sure that you have enough swap space and that it is
enabled.
2) pass the "no-hlt" option to the kernel
3) switch on floating point emulation in the kernel and pass
the "no387" option to the kernel
4) pass the "floppy=nodma" option to the kernel
5) pass the "mem=4M" option to the kernel (thereby disabling
all but the first 4 MB of RAM)
6) make sure that the CPU is not over clocked.
7) read the sig11 FAQ at http://www.bitwizard.nl/sig11/
8) disable the cache from your BIOS settings
9) install a fan for the video card or exchange video RAM
10) install a better fan for the CPU
11) exchange RAM chips
12) exchange the motherboard.
Ignore USER SUSPEND
CONFIG_APM_IGNORE_USER_SUSPEND
This option will ignore USER SUSPEND requests. On machines with a
compliant APM BIOS, you want to say N. However, on the NEC Versa M
series notebooks, it is necessary to say Y because of a BIOS bug.
Enable APM at boot time
CONFIG_APM_DO_ENABLE
Enable APM features at boot time. From page 36 of the APM BIOS
specification: "When disabled, the APM BIOS does not automatically
power manage devices, enter the Standby State, enter the Suspend
State, or take power saving steps in response to CPU Idle calls."
This driver will make CPU Idle calls when Linux is idle (unless this
feature is turned off -- see "Do CPU IDLE calls", below). This
should always save battery power, but more complicated APM features
will be dependent on your BIOS implementation. You may need to turn
this option off if your computer hangs at boot time when using APM
support, or if it beeps continuously instead of suspending. Turn
this off if you have a NEC UltraLite Versa 33/C or a Toshiba
T400CDT. This is off by default since most machines do fine without
this feature.
Do CPU IDLE calls
CONFIG_APM_CPU_IDLE
Enable calls to APM CPU Idle/CPU Busy inside the kernel's idle loop.
On some machines, this can activate improved power savings, such as
a slowed CPU clock rate, when the machine is idle. These idle calls
are made after the idle loop has run for some length of time (e.g.,
333 mS). On some machines, this will cause a hang at boot time or
whenever the CPU becomes idle. (On machines with more than one CPU,
this option does nothing.)
Enable console blanking using APM
CONFIG_APM_DISPLAY_BLANK
Enable console blanking using the APM. Some laptops can use this to
turn off the LCD backlight when the screen blanker of the Linux
virtual console blanks the screen. Note that this is only used by
the virtual console screen blanker, and won't turn off the backlight
when using the X Window system. This also doesn't have anything to
do with your VESA-compliant power-saving monitor. Further, this
option doesn't work for all laptops -- it might not turn off your
backlight at all, or it might print a lot of errors to the console,
especially if you are using gpm.
Ignore multiple suspend/standby events
CONFIG_APM_IGNORE_MULTIPLE_SUSPEND
This option is necessary on the IBM Thinkpad 560, but should work on
all other laptops. When the APM BIOS returns multiple suspend or
standby events while one is already being processed they will be
ignored. Without this the Thinkpad 560 has troubles with the user
level daemon apmd, and with the PCMCIA package pcmcia-cs.
Ignore multiple suspend/resume cycles
CONFIG_APM_IGNORE_SUSPEND_BOUNCE
This option is necessary on the Dell Inspiron 3200 and others, but
should be safe for all other laptops. When enabled, a system suspend
event that occurs within three seconds of a resume is ignored.
Without this the Inspiron will shut itself off a few seconds after
you open the lid, requiring you to press the power button to resume
it a second time. Say Y.
RTC stores time in GMT
CONFIG_APM_RTC_IS_GMT
Say Y here if your RTC (Real Time Clock a.k.a. hardware clock)
stores the time in GMT (Greenwich Mean Time). Say N if your RTC
stores localtime.
It is in fact recommended to store GMT in your RTC, because then you
don't have to worry about daylight savings time changes. The only
reason not to use GMT in your RTC is if you also run a broken OS
that doesn't understand GMT.
Allow interrupts during APM BIOS calls
CONFIG_APM_ALLOW_INTS
Normally we disable external interrupts while we are making calls to
the APM BIOS as a measure to lessen the effects of a badly behaving
BIOS implementation. The BIOS should reenable interrupts if it
needs to. Unfortunately, some BIOSes do not - especially those in
many of the newer IBM Thinkpads. If you experience hangs when you
suspend, try setting this to Y. Otherwise, say N.
Entry point offset fix (some Acer laptops)
CONFIG_APM_BAD_ENTRY_OFFSET
Some implementations of the APM BIOS provide the driver with a bad
entry point offset. If you set this option to Y, then the upper
sixteen bits of the offset will be set to zero. This is usually
unnecessary but harmless. This is required for the Acer Travelmate
510DX, Travelmate 510T and Extensa 503T. For others, say N.
Use real mode APM BIOS call to power off
CONFIG_APM_REAL_MODE_POWER_OFF
Use real mode APM BIOS calls to switch off the computer. This is
a work-around for a number of buggy BIOSes. Switch this option on if
your computer crashes instead of powering off properly.
Watchdog Timer Support
CONFIG_WATCHDOG
If you say Y here (and to one of the following options) and create a
character special file /dev/watchdog with major number 10 and minor
number 130 using mknod ("man mknod"), you will get a watchdog, i.e.:
subsequently opening the file and then failing to write to it for
longer than 1 minute will result in rebooting the machine. This
could be useful for a networked machine that needs to come back
online as fast as possible after a lock-up. There's both a watchdog
implementation entirely in software (which can sometimes fail to
reboot the machine) and a driver for hardware watchdog boards, which
are more robust and can also keep track of the temperature inside
your computer. For details, read Documentation/watchdog.txt in the
kernel source.
The watchdog is usually used together with the watchdog daemon
which is available via FTP (user: anonymous) from
ftp://tsx-11.mit.edu/pub/linux/sources/sbin/ . This daemon can also
monitor NFS connections and can reboot the machine when the process
table is full.
If unsure, say N.
Disable watchdog shutdown on close
CONFIG_WATCHDOG_NOWAYOUT
The default watchdog behavior (which you get if you say N here) is
to stop the timer if the process managing it closes the file
/dev/watchdog. It's always remotely possible that this process might
get killed. If you say Y here, the watchdog cannot be stopped once
it has been started.
WDT Watchdog timer
CONFIG_WDT
If you have a WDT500P or WDT501P watchdog board, say Y here,
otherwise N. It is not possible to probe for this board, which means
that you have to set the IO port and IRQ it uses in the kernel
source at the top of drivers/char/wdt.c.
If you want to compile this as a module ( = code which can be
inserted in and removed from the running kernel whenever you want),
say M here and read Documentation/modules.txt. The module will be
called wdt.o.
WDT501 features
CONFIG_WDT_501
Saying Y here and creating a character special file /dev/temperature
with major number 10 and minor number 131 ("man mknod") will give
you a thermometer inside your computer: reading from
/dev/temperature yields one byte, the temperature in degrees
Fahrenheit. This works only if you have a WDT501P watchdog board
installed.
Fan Tachometer
CONFIG_WDT_501_FAN
Enable the Fan Tachometer on the WDT501. Only do this if you have a
fan tachometer actually set up.
Software Watchdog
CONFIG_SOFT_WATCHDOG
A software monitoring watchdog. This will fail to reboot your system
from some situations that the hardware watchdog will recover
from. Equally it's a lot cheaper to install.
This driver is also available as a module ( = code which can be
inserted in and removed from the running kernel whenever you want).
If you want to compile it as a module, say M here and read
Documentation/modules.txt. The module will be called softdog.o.
Berkshire Products PC Watchdog
CONFIG_PCWATCHDOG
This is the driver for the Berkshire Products PC Watchdog card.
This card simply watches your kernel to make sure it doesn't freeze,
and if it does, it reboots your computer after a certain amount of
time. This driver is like the WDT501 driver but for different
hardware. Please read Documentation/pcwd-watchdog.txt. The PC
watchdog cards can be ordered from http://www.berkprod.com .
This driver is also available as a module ( = code which can be
inserted in and removed from the running kernel whenever you want).
The module is called pcwd.o. If you want to compile it as a module,
say M here and read Documentation/modules.txt.
Most people will say N.
Acquire SBC Watchdog Timer
CONFIG_ACQUIRE_WDT
This is the driver for the hardware watchdog on the PSC-6x86 Single
Board Computer produced by Acquire Inc (and others). This watchdog
simply watches your kernel to make sure it doesn't freeze, and if
it does, it reboots your computer after a certain amount of time.
This driver is like the WDT501 driver but for different hardware.
This driver is also available as a module ( = code which can be
inserted in and removed from the running kernel whenever you want).
The module is called pscwdt.o. If you want to compile it as a
module, say M here and read Documentation/modules.txt. Most people
will say N.
Intel P6 CPU Microcode Update Support
CONFIG_MICROCODE
If you say Y here you will be able to update microcode on
Intel processors in P6 family, e.g. Pentium Pro, Pentium II,
Pentium III, Xeon etc. You will obviously need the actual microcode
binary data itself which is not shipped with the Linux kernel.
Contact Intel to obtain the latest revision of microcode for
your CPU(s). With this support compiled you can use dd(1) to write
microcode, for example:
# dd if=/etc/microcode of=/proc/driver/microcode bs=98304 count=1
You need to be superuser to do that.
This driver is also available as a module ( = code which can be
inserted in and removed from the running kernel whenever you want).
The module will be called microcode.o. If you want to compile it as a
module, say M here and read Documentation/modules.txt.
Enhanced Real Time Clock Support
CONFIG_RTC
If you say Y here and create a character special file /dev/rtc with
major number 10 and minor number 135 using mknod ("man mknod"), you
will get access to the real time clock built into your computer.
Every PC has such a clock built in. It can be used to generate
signals from as low as 1Hz up to 8192Hz, and can also be used
as a 24 hour alarm. It reports status information via the file
/proc/driver/rtc and its behavior is set by various ioctls on
/dev/rtc.
If you run Linux on a multiprocessor machine and said Y to
"Symmetric Multi Processing" above, you should say Y here to read
and set the RTC in an SMP compatible fashion.
If you think you have a use for such a device (such as periodic data
sampling), then say Y here, and read Documentation/rtc.txt for
details.
Tadpole ANA H8 Support
CONFIG_H8
The Hitachi H8/337 is a microcontroller used to deal with the power
and thermal environment. If you say Y here, you will be able to
communicate with it via a character special device.
If unsure, say N.
/dev/nvram support
CONFIG_NVRAM
If you say Y here and create a character special file /dev/nvram
with major number 10 and minor number 144 using mknod ("man mknod"),
you get read and write access to the 50 bytes of non-volatile memory
in the real time clock (RTC), which is contained in every PC and
most Ataris.
This memory is conventionally called "CMOS RAM" on PCs and "NVRAM"
on Ataris. /dev/nvram may be used to view settings there, or to
change them (with some utility). It could also be used to frequently
save a few bits of very important data that may not be lost over
power-off and for which writing to disk is too insecure. Note
however that most NVRAM space in a PC belongs to the BIOS and you
should NEVER idly tamper with it. See Ralf Brown's interrupt list
for a guide to the use of CMOS bytes by your BIOS.
On Atari machines, /dev/nvram is always configured and does not need
to be selected.
This driver is also available as a module ( = code which can be
inserted in and removed from the running kernel whenever you want).
The module will be called nvram.o. If you want to compile it as a
module, say M here and read Documentation/modules.txt.
Joystick support
CONFIG_JOYSTICK
If you have a joystick, 6dof controller, gamepad, steering wheel,
weapon control system or something like that you can say Y here to
enable generic support for these controllers. You will also need to
say Y or M to at least one of the hardware specific drivers. This
will make the controllers available as /dev/jsX devices. Please read
the file Documentation/joystick.txt which contains more information
and the location of the joystick package that you'll need.
Classic PC analog
CONFIG_JOY_ANALOG
Say Y here if you have a controller that connects to the PC
gameport. This supports many different types, including joysticks
with throttle control, with rudders, or with extensions like
additional hats and buttons compatible with CH Flightstick Pro,
ThrustMaster FCS or 6 and 8 button gamepads. For more information on
how to use the driver please read Documentation/joystick.txt
FPGaming and MadCatz A3D
CONFIG_JOY_ASSASSIN
Say Y here if you have an FPGaming or MadCatz controller using the
A3D protocol over the PC gameport. For more information on how to
use the driver please read Documentation/joystick.txt
Gravis GrIP
CONFIG_JOY_GRAVIS
Say Y here if you have a Gravis controller using the GrIP protocol
over the PC gameport. For more information on how to use the driver
please read Documentation/joystick.txt
Logitech ADI
CONFIG_JOY_LOGITECH
Say Y here if you have a Logitech controller using the ADI
protocol over the PC gameport. For more information on how to use
the driver please read Documentation/joystick.txt
Microsoft SideWinder
CONFIG_JOY_SIDEWINDER
Say Y here if you have a Microsoft controller using the Digital
Overdrive protocol over PC gameport. For more information on how to
use the driver please read Documentation/joystick.txt
ThrustMaster DirectConnect
CONFIG_JOY_THRUSTMASTER
Say Y here if you have a ThrustMaster controller using the
DirectConnect (BSP) protocol over the PC gameport. For more
information on how to use the driver please read
Documentation/joystick.txt
Creative Labs Blaster
CONFIG_JOY_CREATIVE
Say Y here if you have a Creative Labs controller using the
Blaster protocol over the PC gameport. For more information on how
to use the driver please read Documentation/joystick.txt
PDPI Lightning 4 card
CONFIG_JOY_LIGHTNING
Say Y here if you have a PDPI Lightning 4 gamecard and an analog
joystick or gamepad connected to it. For more information on how to
use the driver please read Documentation/joystick.txt
Trident 4DWave and Aureal Vortex gameport
CONFIG_JOY_PCI
Say Y here if you have a Trident 4DWave DX/NX or Aureal Vortex 1/2
card and want to use its gameport in its enhanced digital mode
with and ordinary analog joystick. For more information on how to
use the driver please read Documentation/joystick.txt
Magellan and Space Mouse
CONFIG_JOY_MAGELLAN
Say Y here if you have a Magellan or Space Mouse 6DOF controller
connected to your computer's serial port. For more information on
how to use the driver please read Documentation/joystick.txt
SpaceTec SpaceOrb 360 and SpaceBall Avenger
CONFIG_JOY_SPACEORB
Say Y here if you have a SpaceOrb 360 or SpaceBall Avenger 6DOF
controller connected to your computer's serial port. For more
information on how to use the driver please read
Documentation/joystick.txt
SpaceTec SpaceBall 4000 FLX
CONFIG_JOY_SPACEBALL
Say Y here if you have a SpaceTec SpaceBall 4000 FLX
controller connected to your computer's serial port. For more
information on how to use the driver please read
Documentation/joystick.txt
Logitech WingMan Warrior
CONFIG_JOY_WARRIOR
Say Y here if you have a Logitech WingMan Warrior controller
connected to your computer's serial port. For more information on
how to use the driver please read Documentation/joystick.txt
NES, SNES, N64, PSX, Multi
CONFIG_JOY_CONSOLE
Say Y here if you have a Nintendo Entertainment System gamepad,
Super Nintendo Entertainment System gamepad, Nintendo 64 gamepad,
Sony PlayStation gamepad or a Multisystem -- Atari, Amiga,
Commodore, Amstrad CPC joystick connected to your parallel port.
For more information on how to use the driver please read
Documentation/joystick.txt and Documentation/joystick-parport.txt
Sega, Multi
CONFIG_JOY_DB9
Say Y here if you have a Sega Master System gamepad, Sega Genesis
gamepad, Sega Saturn gamepad, or a Multisystem -- Atari, Amiga,
Commodore, Amstrad CPC joystick connected to your parallel port. For
more information on how to use the driver please read
Documentation/joystick.txt and Documentation/joystick-parport.txt
TurboGraFX interface
CONFIG_JOY_TURBOGRAFX
Say Y here if you have the TurboGraFX interface by Steffen Schwenke,
and want to use it with Multiststem -- Atari, Amiga, Commodore,
Amstrad CPC joystick. For more information on how to use the driver
please read Documentation/joystick.txt and
Documentation/joystick-parport.txt
Amiga joysticks
CONFIG_JOY_AMIGA
Say Y here if you have an Amiga with a digital joystick connected
to it. For more information on how to use the driver please read
Documentation/joystick.txt
Atomwide Serial Support
CONFIG_ATOMWIDE_SERIAL
If you have an Atomwide Serial card for an Acorn system, say Y to
this option. The driver can handle 1, 2, or 3 port cards.
If unsure, say N
The Serial Port Dual Serial Port
CONFIG_DUALSP_SERIAL
If you have the Serial Port's dual serial card for an Acorn system,
say Y to this option. If unsure, say N
NetWinder Button
CONFIG_NWBUTTON
If you say Y here and create a character device node /dev/nwbutton
with major and minor numbers 10 and 158 ("man mknod"), then every
time the orange button is pressed a number of times, the number of
times the button was pressed will be written to that device.
This is most useful for applications, as yet unwritten, which
perform actions based on how many times the button is pressed in a
row.
Do not hold the button down for too long, as the driver does not
alter the behavior of the hardware reset circuitry attached to the
button; it will still execute a hard reset if the button is held
down for longer than approximately five seconds.
This driver is also available as a module ( = code which can be
inserted in and removed from the running kernel whenever you want).
If you want to compile it as a module, say M here and read
Documentation/modules.txt. The module will be called nwbutton.o.
Most people will answer Y to this question and "Reboot Using Button"
below to be able to initiate a system shutdown from the button.
Reboot Using Button
CONFIG_NWBUTTON_REBOOT
If you say Y here, then you will be able to initiate a system
shutdown and reboot by pressing the orange button a number of times.
The number of presses to initiate the shutdown is two by default,
but this can be altered by modifying the value of NUM_PRESSES_REBOOT
in nwbutton.h and recompiling the driver or, if you compile the
driver as a module, you can specify the number of presses at load
time with "insmod button reboot_count=<something>".
Sound card support
CONFIG_SOUND
If you have a sound card in your computer, i.e. if it can say more
than an occasional beep, say Y. Be sure to have all the information
about your sound card and its configuration down (I/O port,
interrupt and DMA channel), because you will be asked for it.
You want to read the Sound-HOWTO, available from
http://www.linuxdoc.org/docs.html#howto . General information
about the modular sound system is contained in the files
Documentation/sound/Introduction. The file
Documentation/sound/README.OSS contains some slightly outdated but
still useful information as well.
If you have a PnP sound card and you want to configure it at boot
time using the ISA PnP tools (read
http://www.roestock.demon.co.uk/isapnptools/ ), then you need to
compile the sound card support as a module ( = code which can be
inserted in and removed from the running kernel whenever you want)
and load that module after the PnP configuration is finished. To do
this, say M here and read Documentation/modules.txt as well as
Documentation/sound/README.modules; the module will be called
soundcore.o.
I'm told that even without a sound card, you can make your computer
say more than an occasional beep, by programming the PC speaker.
Kernel patches and supporting utilities to do that are in the pcsp
package, available at ftp://ftp.infradead.org/pub/pcsp/.
OSS sound modules
CONFIG_SOUND_OSS
OSS is the Open Sound System suite of sound card drivers. They make
sound programming easier since they provide a common API. Say Y or M
here (the module will be called sound.o) if you haven't found a
driver for your sound card above, then pick your driver from the
list below.
Persistent DMA buffers
CONFIG_SOUND_DMAP
Linux can often have problems allocating DMA buffers for ISA sound
cards on machines with more than 16MB of RAM. This is because ISA
DMA buffers must exist below the 16MB boundary and it is quite
possible that a large enough free block in this region cannot be
found after the machine has been running for a while. If you say Y
here the DMA buffers (64Kb) will be allocated at boot time and kept
until the shutdown. This option is only useful if you said Y to
"OSS sound modules", above. If you said M to "OSS sound modules"
then you can get the persistent DMA buffer functionality by passing
the command-line argument "dmabuf=1" to the sound.o module.
Say Y unless you have 16MB or less RAM or a PCI sound card.
Support for Aztech Sound Galaxy (non-PnP) cards
CONFIG_SOUND_SGALAXY
This module initializes the older non Plug and Play sound galaxy
cards from Aztech. It supports the Waverider Pro 32 - 3D and the
Galaxy Washington 16.
Support for AD1816(A) based cards (EXPERIMENTAL)
CONFIG_SOUND_AD1816
Say M here if you have a sound card based on the Analog Devices
AD1816(A) chip.
NOTE: This driver is still EXPERIMENTAL.
See Documentation/sound/AD1816 for further information.
Yamaha OPL3-SA1 audio controller
CONFIG_SOUND_OPL3SA1
Say Y or M if you have a Yamaha OPL3-SA1 sound chip, which is
usually built into motherboards. Read Documentation/sound/OPL3-SA
for details.
ProAudioSpectrum 16 support
CONFIG_SOUND_PAS
Answer Y only if you have a Pro Audio Spectrum 16, ProAudio Studio
16 or Logitech SoundMan 16 sound card. Don't answer Y if you have
some other card made by Media Vision or Logitech since they are not
PAS16 compatible.
100% Sound Blaster compatibles (SB16/32/64, ESS, Jazz16) support
CONFIG_SOUND_SB
Answer Y if you have an original Sound Blaster card made by Creative
Labs or a 100% hardware compatible clone (like the Thunderboard or
SM Games). For an unknown card you may answer Y if the card claims
to be Sound Blaster-compatible.
Please read the file Documentation/sound/Soundblaster.
You should also say Y here for cards based on the Avance Logic
ALS-007 chip (read Documentation/sound/ALS007) and for cards based
on ESS chips (read Documentation/sound/ESS1868 and
Documentation/sound/ESS). If you have an SB AWE 32 or SB AWE 64, say
Y here and also to "Additional lowlevel drivers" and to "SB32/AWE
support" below and read Documentation/sound/INSTALL.awe. If you have
an IBM Mwave card, say Y here and read Documentation/sound/mwave.
You can say M here to compile this driver as a module; the module is
called sb.o.
#Loopback MIDI device support
#CONFIG_SOUND_VMIDI
###
### somebody please fill this in.
###
#
Gravis Ultrasound support
CONFIG_SOUND_GUS
Say Y here for any type of Gravis Ultrasound card, including
the GUS or GUS MAX. See also Documentation/sound/ultrasound for
more information on configuring this card with modules.
MPU-401 support (NOT for SB16)
CONFIG_SOUND_MPU401
Be careful with this question. The MPU401 interface is supported by
all sound cards. However, some natively supported cards have their
own driver for MPU401. Enabling this MPU401 option with these cards
will cause a conflict. Also, enabling MPU401 on a system that
doesn't really have a MPU401 could cause some trouble. If your card
was in the list of supported cards, look at the card specific
instructions in the drivers/sound/Readme.cards file. It's safe to
answer Y if you have a true MPU401 MIDI interface card.
6850 UART support
CONFIG_SOUND_UART6850
This option enables support for MIDI interfaces based on the 6850
UART chip. This interface is rarely found on sound cards. It's safe
to answer N to this question.
VIDC Sound
CONFIG_VIDC_SOUND
Say Y here for ARM systems with the VIDC video controller and 16-bit
Linear sound DACs. If unsure, say N.
PSS (AD1848, ADSP-2115, ESC614) support
CONFIG_SOUND_PSS
Answer Y or M if you have an Orchid SW32, Cardinal DSP16, Beethoven
ADSP-16 or some other card based on the PSS chipset (AD1848 codec +
ADSP-2115 DSP chip + Echo ESC614 ASIC CHIP). For more information on
how to compile it into the kernel or as a module see the file
Documentation/sound/PSS.
Enable PSS mixer (Beethoven ADSP-16 and other compatible)
CONFIG_PSS_MIXER
Answer Y for Beethoven ADSP-16. You may try to say Y also for other
cards if they have master volume, bass, treble, and you can't
control it under Linux. If you answer N for Beethoven ADSP-16, you
can't control master volume, bass, treble and synth volume.
If you said M to "PSS support" above, you may enable or disable this
PSS mixer with the module parameter pss_mixer. For more information
see the file Documentation/sound/PSS.
Have DSPxxx.LD firmware file
CONFIG_PSS_HAVE_BOOT
If you have the DSPxxx.LD file or SYNTH.LD file for you card, say Y
to include this file. Without this file the synth device (OPL) may
not work.
Full pathname of DSPxxx.LD firmware file
CONFIG_PSS_BOOT_FILE
Enter the full pathname of your DSPxxx.LD file or SYNTH.LD file,
starting from /.
16 bit sampling option of GUS (_NOT_ GUS MAX)
CONFIG_SOUND_GUS16
Answer Y if you have installed the 16 bit sampling daughtercard on
your GUS. Answer N if you have a GUS MAX, since saying Y here
disables GUS MAX support.
GUS MAX support
CONFIG_SOUND_GUSMAX
Answer Y only if you have a Gravis Ultrasound MAX.
Microsoft Sound System support
CONFIG_SOUND_MSS
Again think carefully before answering Y to this question. It's safe
to answer Y if you have the original Windows Sound System card made
by Microsoft or Aztech SG 16 Pro (or NX16 Pro). Also you may say Y
in case your card is NOT among these:
ATI Stereo F/X, AdLib, Audio Excell DSP16, Cardinal DSP16,
Ensoniq SoundScape (and compatibles made by Reveal and Spea),
Gravis Ultrasound, Gravis Ultrasound ACE, Gravis Ultrasound Max,
Gravis Ultrasound with 16 bit option, Logitech Sound Man 16,
Logitech SoundMan Games, Logitech SoundMan Wave, MAD16 Pro (OPTi
82C929), Media Vision Jazz16, MediaTriX AudioTriX Pro, Microsoft
Windows Sound System (MSS/WSS), Mozart (OAK OTI-601), Orchid
SW32, Personal Sound System (PSS), Pro Audio Spectrum 16, Pro
Audio Studio 16, Pro Sonic 16, Roland MPU-401 MIDI interface,
Sound Blaster 1.0, Sound Blaster 16, Sound Blaster 16ASP, Sound
Blaster 2.0, Sound Blaster AWE32, Sound Blaster Pro, TI TM4000M
notebook, ThunderBoard, Turtle Beach Tropez, Yamaha FM
synthesizers (OPL2, OPL3 and OPL4), 6850 UART MIDI Interface.
For cards having native support in VoxWare, consult the card
specific instructions in drivers/sound/Readme.cards. Some drivers
have their own MSS support and saying Y to this option will cause a
conflict.
SGI Visual Workstation on-board audio
CONFIG_SOUND_VWSND
Say Y or M if you have an SGI Visual Workstation and you want to
be able to use its on-board audio. Read Documentation/sound/visws
for more info on this driver's capabilities.
Ensoniq Soundscape support
CONFIG_SOUND_SSCAPE
Answer Y if you have a sound card based on the Ensoniq SoundScape
chipset. Such cards are being manufactured at least by Ensoniq, Spea
and Reveal (Reveal makes also other cards).
MediaTriX AudioTriX Pro support
CONFIG_SOUND_TRIX
Answer Y if you have the AudioTriX Pro sound card manufactured
by MediaTrix.
Have TRXPRO.HEX firmware file
CONFIG_TRIX_HAVE_BOOT
The MediaTrix AudioTrix Pro has an on-board microcontroller which
needs to be initialized by downloading the code from the file
TRXPRO.HEX in the DOS driver directory. If you don't have the
TRXPRO.HEX file handy you may skip this step. However, the SB and
MPU-401 modes of AudioTrix Pro will not work without this file!
Full pathname of TRXPRO.HEX firmware file
CONFIG_TRIX_BOOT_FILE
Enter the full pathname of your TRXPRO.HEX file, starting from /.
Support for OPTi MAD16 and/or Mozart based cards
CONFIG_SOUND_MAD16
Answer Y if your card has a Mozart (OAK OTI-601) or MAD16 (OPTi
82C928 or 82C929 or 82C931) audio interface chip. For the 82C931,
please read drivers/sound/README.C931. These chips are currently
quite common so it's possible that many no-name cards have one of
them. In addition the MAD16 chip is used in some cards made by known
manufacturers such as Turtle Beach (Tropez), Reveal (some models)
and Diamond (latest ones). Note however that the Tropez sound cards
have their own driver; if you have one of those, say N here and Y or
M to "Full support for Turtle Beach WaveFront", below.
See also Documentation/sound/Opti and Documentation/sound/MAD16 for
more information on setting these cards up as modules.
Full support for Turtle Beach WaveFront synth/sound cards
CONFIG_SOUND_WAVEFRONT
Answer Y or M if you have a Tropez Plus, Tropez or Maui sound card
and read the files Documentation/sound/Wavefront and
Documentation/sound/Tropez+.
Support MIDI in older MAD16 based cards (requires SB)
CONFIG_MAD16_OLDCARD
Answer Y (or M) if you have an older card based on the C928 or
Mozart chipset and you want to have MIDI support. If you enable this
option you also need to enable support for Sound Blaster.
Support for Crystal CS4232 based (PnP) cards
CONFIG_SOUND_CS4232
Say Y here if you have a card based on the Crystal CS4232 chip set,
which uses its own Plug and Play protocol.
See Documentation/sound/CS4232 for more information on configuring
this card.
Support for Yamaha OPL3-SA2, SA3, and SAx based PnP cards
CONFIG_SOUND_OPL3SA2
Say Y or M if you have a card based on one of these Yamaha
sound chipsets. Read Documentation/sound/OPL3-SA2 for more
information on configuring these cards.
Support for Turtle Beach Wave Front (Maui, Tropez) synthesizers
CONFIG_SOUND_MAUI
Say Y here if you have a Turtle Beach Wave Front, Maui, or Tropez
sound card.
Have OSWF.MOT firmware file
CONFIG_MAUI_HAVE_BOOT
Turtle Beach Maui and Tropez sound cards have a microcontroller
which needs to be initialized prior to use. OSWF.MOT is a file
distributed with the card's DOS/Windows drivers. Answer Y if you
have this file.
Full pathname of OSWF.MOT firmware file
CONFIG_MAUI_BOOT_FILE
Enter the full pathname of your OSWF.MOT file, starting from /.
Support for Turtle Beach MultiSound Classic, Tahiti, Monterey
CONFIG_SOUND_MSNDCLAS
Say M here if you have a Turtle Beach MultiSound Classic, Tahiti or
Monterey (not for the Pinnacle or Fiji).
See Documentation/sound/MultiSound for important information about
this driver.
Full pathname of MSNDINIT.BIN firmware file
CONFIG_MSNDCLAS_INIT_FILE
The MultiSound cards have two firmware files which are required for
operation, and are not currently included. These files can be
obtained from Turtle Beach. See Documentation/sound/MultiSound for
information on how to obtain this.
Full pathname of MSNDPERM.BIN firmware file
CONFIG_MSNDCLAS_PERM_FILE
The MultiSound cards have two firmware files which are required for
operation, and are not currently included. These files can be
obtained from Turtle Beach. See Documentation/sound/MultiSound for
information on how to obtain this.
Support for Turtle Beach MultiSound Pinnacle, Fiji
CONFIG_SOUND_MSNDPIN
Say M here if you have a Turtle Beach MultiSound Pinnacle or Fiji.
See Documentation/sound/MultiSound for important information about
this driver.
Full pathname of PNDSPINI.BIN firmware file
CONFIG_MSNDPIN_INIT_FILE
The MultiSound cards have two firmware files which are required for
operation, and are not currently included. These files can be
obtained from Turtle Beach. See Documentation/sound/MultiSound for
information on how to obtain this.
Full pathname of PNDSPERM.BIN firmware file
CONFIG_MSNDPIN_PERM_FILE
The MultiSound cards have two firmware files which are required for
operation, and are not currently included. These files can be
obtained from Turtle Beach. See Documentation/sound/MultiSound for
information on how to obtain this.
MSND Pinnacle have S/PDIF I/O
CONFIG_MSNDPIN_DIGITAL
If you have the S/PDIF daughter board for the Pinnacle or Fiji,
answer Y here; otherwise, say N. If you have this, you will be able
to play and record from the S/PDIF port (digital signal). See
Documentation/sound/MultiSound for information on how to make use of
this capability.
MSND Pinnacle non-PnP Mode
CONFIG_MSNDPIN_NONPNP
The Pinnacle and Fiji card resources can be configured either with
PnP, or through a configuration port. Say Y here if your card is NOT
in PnP mode. For the Pinnacle, configuration in non-PnP mode allows
use of the IDE and joystick peripherals on the card as well; these
do not show up when the card is in PnP mode. Specifying zero for any
resource of a device will disable the device. If you are running the
card in PnP mode, you must say N here and use isapnptools to
configure the card's resources.
MSND Pinnacle config port
CONFIG_MSNDPIN_CFG
This is the port which the Pinnacle and Fiji uses to configure the
card's resources when not in PnP mode. If your card is in PnP mode,
then be sure to say N to the previous option, "MSND Pinnacle Non-PnP
Mode".
MSND buffer size (kB)
CONFIG_MSND_FIFOSIZE
Configures the size of each audio buffer, in kilobytes, for
recording and playing in the MultiSound drivers (both the Classic
and Pinnacle). Larger values reduce the chance of data overruns at
the expense of overall latency. If unsure, use the default.
/dev/dsp and /dev/audio support
CONFIG_SOUND_AUDIO
If you say Y here, you will get the /dev/dsp and /dev/audio devices;
these are the analog-digital and digital-analog converter devices
and are very useful, so say Y.
MIDI interface support
CONFIG_SOUND_MIDI
Answering N disables /dev/midixx devices and access to any MIDI
ports using /dev/sequencer and /dev/music. This option also affects
any MPU401 and/or General MIDI compatible devices. Answer Y.
FM synthesizer (YM3812/OPL-3) support
CONFIG_SOUND_YM3812
Answer Y if your card has a FM chip made by Yamaha (OPL2/OPL3/OPL4).
Answering Y is usually a safe and recommended choice, however some
cards may have software (TSR) FM emulation. Enabling FM support with
these cards may cause trouble (I don't currently know of any such
cards, however).
Please read the file Documentation/sound/OPL3 if your card has an
OPL3 chip.
If unsure, say Y.
Sun Audio support
CONFIG_SUN_AUDIO
This is support for the sound cards on Sun workstations. The code
does not exist yet, so you might as well say N here.
Additional low level drivers
CONFIG_LOWLEVEL_SOUND
If you need additional low level sound drivers which have not yet
appeared, say Y. The answer to this question does not directly
affect the kernel; saying Y will simply cause this configure script
to present you with more options. If unsure, say Y.
ACI mixer (miroPCM12/PCM20)
CONFIG_ACI_MIXER
ACI (Audio Command Interface) is a protocol used to communicate with
the microcontroller on some sound cards produced by miro, e.g. the
miroSOUND PCM12 and PCM20. The main function of the ACI is to
control the mixer and to get a product identification.
This Voxware ACI driver currently only supports the ACI functions on
the miroSOUND PCM12 and PCM20 cards. On the PCM20, ACI also controls
the radio tuner. This is supported in the video4linux
radio-miropcm20 driver.
SB32/AWE support
CONFIG_AWE32_SYNTH
Say Y here if you have a Sound Blaster SB32, AWE32-PnP, SB AWE64 or
similar sound card. See Documentation/sound/README.awe,
Documentation/sound/AWE32 and the Soundblaster-AWE mini-HOWTO,
available from http://www.linuxdoc.org/docs.html#howto for more
info.
Gallant's Audio Excel DSP 16 support (SC-6000 and SC-6600)
CONFIG_AEDSP16
Answer Y if you have a Gallant's Audio Excel DSP 16 card. This
driver supports Audio Excel DSP 16 but not the III nor PnP versions
of this card.
The Gallant's Audio Excel DSP 16 card can emulate either an SBPro or
a Microsoft Sound System card, so you should have said Y to either
"100% Sound Blaster compatibles (SB16/32/64, ESS, Jazz16) support"
or "Microsoft Sound System support", above, and you need to answer
the "MSS emulation" and "SBPro emulation" questions below
accordingly. You should say Y to one and only one of these two
questions.
Read the drivers/sound/lowlevel/README.aedsp16 file and the head of
drivers/sound/lowlevel/aedsp16.c as well as
Documentation/sound/AudioExcelDSP16 to get more information about
this driver and its configuration.
I/O base for Audio Excel DSP 16
CONFIG_AEDSP16_BASE
This is the base I/O address of the Audio Excel DSP 16 card. It must
be 220 or 240. If you compiled aedsp16.o as a module you can specify
this parameter as 'io=0xNNN'.
Audio Excel DSP 16 (SBPro emulation)
CONFIG_AEDSP16_SBPRO
Answer Y if you want your audio card to emulate Sound Blaster Pro.
You should then say Y to "100% Sound Blaster compatibles
(SB16/32/64, ESS, Jazz16) support" and N to "Audio Excel DSP 16 (MSS
emulation)".
Audio Excel DSP 16 IRQ
CONFIG_AEDSP16_SB_IRQ
This is the IRQ of the Audio Excel DSP 16 card. It must be 5, 7, 9,
10 or 11. If you compiled aedsp16.o as a module you can specify
this parameter as 'irq=NN'.
Audio Excel DSP 16 DMA
CONFIG_AEDSP16_SB_DMA
This is the IRQ of the Audio Excel DSP 16 card. It must be 0, 1 or
3. If you compiled aedsp16.o as a module you can specify this
parameter as 'dma=NN'.
Audio Excel DSP 16 (MSS emulation)
CONFIG_AEDSP16_MSS
Answer Y if you want your audio card to emulate Microsoft Sound
System. You should then say Y to "Microsoft Sound System support"
and say N to "Audio Excel DSP 16 (SBPro emulation)".
Audio Excel DSP 16 IRQ
CONFIG_AEDSP16_MSS_IRQ
This is the IRQ of the Audio Excel DSP 16 card. It must be 5, 7, 9,
10 or 11. If you compiled aedsp16.o as a module you can specify
this parameter as 'irq=NN'.
Audio Excel DSP 16 DMA
CONFIG_AEDSP16_MSS_DMA
This is the IRQ of the Audio Excel DSP 16 card. It must be 0, 1
or 3. If you compiled aedsp16.o as a module you can specify this
parameter as 'dma=NN'.
SC-6600 based audio cards (new Audio Excel DSP 16)
CONFIG_SC6600
The SC6600 is the new version of DSP mounted on the Audio Excel DSP
16 cards. Find in the manual the FCC ID of your audio card and
answer Y if you have an SC6600 DSP.
SC-6600 Joystick Interface
CONFIG_SC6600_JOY
Say Y here in order to use the joystick interface of the Audio Excel
DSP 16 card.
SC-6600 CDROM Interface
CONFIG_SC6600_CDROM
This is used to activate the the CDROM interface of the Audio Excel
DSP 16 card. Enter: 0 for Sony, 1 for Panasonic, 2 for IDE, 4 for no
CDROM present.
Audio Excel DSP 16 (MPU401 emulation)
CONFIG_AEDSP16_MPU401
Answer Y if you want your audio card to emulate the MPU-401 midi
interface. You should then also say Y to "MPU-401 support".
Note that the I/O base for MPU-401 support of aedsp16 is the same
you have selected for "MPU-401 support". If you are using this
driver as a module you have to specify the MPU I/O base address with
the parameter 'mpu_base=0xNNN'.
MPU401 IRQ for Audio Excel DSP 16
CONFIG_AEDSP16_MPU_IRQ
This is the IRQ of the MPU-401 emulation of your Audio Excel DSP 16
card. It must be 5, 7, 9, 10 or 0 (to disable MPU-401 interface). If
you compiled aedsp16.o as a module you can specify this parameter as
'mpu_irq=NN'.
Ensoniq ES1370 based PCI sound cards
CONFIG_SOUND_ES1370
Say Y or M if you have a PCI sound card utilizing the Ensoniq
ES1370 chipset, such as Ensoniq's AudioPCI (non-97). To find
out if your sound card uses an ES1370 without removing your
computer's cover, use lspci -n and look for the PCI ID
1274:5000. Since Ensoniq was bought by Creative Labs,
Sound Blaster 64/PCI models are either ES1370 or ES1371 based.
This driver differs slightly from OSS/Free, so PLEASE READ
Documentation/sound/es1370.
Ensoniq ES1371 based PCI sound cards
CONFIG_SOUND_ES1371
Say Y or M if you have a PCI sound card utilizing the Ensoniq
ES1371 chipset, such as Ensoniq's AudioPCI97. To find out if
your sound card uses an ES1371 without removing your computer's
cover, use lspci -n and look for the PCI ID 1274:1371. Since
Ensoniq was bought by Creative Labs, Sound Blaster 64/PCI
models are either ES1370 or ES1371 based. This driver differs
slightly from OSS/Free, so PLEASE READ Documentation/sound/es1371.
ESS Solo1 based PCI sound cards (eg. SC1938)
CONFIG_SOUND_ESSSOLO1
Say Y or M if you have a PCI sound card utilizing the ESS Technology
Solo1 chip. To find out if your sound card uses a
Solo1 chip without removing your computer's cover, use
lspci -n and look for the PCI ID 125D:1969. This driver
differs slightly from OSS/Free, so PLEASE READ
Documentation/sound/solo1.
S3 SonicVibes based PCI sound cards
CONFIG_SOUND_SONICVIBES
Say Y or M if you have a PCI sound card utilizing the S3
SonicVibes chipset. To find out if your sound card uses a
SonicVibes chip without removing your computer's cover, use
lspci -n and look for the PCI ID 5333:CA00. This driver
differs slightly from OSS/Free, so PLEASE READ
Documentation/sound/sonicvibes.
Trident 4DWave DX/NX or SiS 7018 PCI Audio Core
CONFIG_SOUND_TRIDENT
Say Y or M if you have a PCI sound card utilizing the Trident
4DWave-DX/NX chipset or your mother board chipset has SiS 7018
built-in. The SiS 7018 PCI Audio Core is embedded in SiS960
Super South Bridge and SiS540/630 Single Chipset.
Use lspci -n to find out if your sound card or chipset uses
Trident 4DWave or SiS 7018. PCI ID 1023:2000 or 1023:2001 stands
for Trident 4Dwave. PCI ID 1039:7018 stands for SiS7018.
This driver differs slightly from OSS/Free, so PLEASE READ the
comments at of driver/sound/trident.c
Rockwell WaveArtist
CONFIG_SOUND_WAVEARTIST
Say Y here to include support for the Rockwell WaveArtist sound
system. This driver is mainly for the NetWinder.
VIA 82Cxxx Audio Codec
CONFIG_SOUND_VIA82CXXX
Say Y here to include support for the audio codec found on
VIA 82Cxxx-based chips. Typically these are built into a motherboard.
DO NOT select SoundBlaster or Adlib with this driver, unless you have
a SoundBlaster or Adlib card in addition to your VIA audio chip.
NeoMagic 256AV/256ZX sound chipsets
CONFIG_SOUND_NM256
Say M here to include audio support for the NeoMagic 256AV/256ZX
chipsets. These are the audio chipsets found in the Sony Z505S/SX/DX,
some Sony F-series, and the Dell Latitude CPi and CPt laptops. It includes
support for an AC97-compatible mixer and an apparently proprietary sound
engine.
See Documentation/sound/NM256 for further information.
ESS Maestro sound chipsets
CONFIG_SOUND_MAESTRO
Say Y or M if you have a sound system driven by ESS's Maestro line
of PCI sound chips. These include the Maestro 1, Maestro 2, and
Maestro 2E. See Documentation/sound/Maestro for more details.
Are you using a crosscompiler
CONFIG_CROSSCOMPILE
Say Y here if you are compiling the kernel on a different
architecture than the one it is intended to run on.
Build fp exception handler module
CONFIG_MIPS_FPE_MODULE
Build the floating point exception handler module. This option is
only useful for people working on the floating point exception
handler. If you don't, say N.
Remote GDB kernel debugging
CONFIG_REMOTE_DEBUG
If you say Y here, it will be possible to remotely debug the MIPS
kernel using gdb. This enlarges your kernel image disk size by
several megabytes and requires a machine with more than 16 MB,
better 32 MB RAM to avoid excessive linking time. This is only
useful for kernel hackers. If unsure, say N.
Magic System Request Key support
CONFIG_MAGIC_SYSRQ
If you say Y here, you will have some control over the system even
if the system crashes for example during kernel debugging (e.g., you
will be able to flush the buffer cache to disk, reboot the system
immediately or dump some status information). This is accomplished
by pressing various keys while holding SysRq (Alt+PrintScreen). The
keys are documented in Documentation/sysrq.txt. Don't say Y unless
you really know what this hack does.
ISDN subsystem
CONFIG_ISDN
ISDN ("Integrated Services Digital Networks", called RNIS in France)
is a special type of fully digital telephone service; it's mostly
used to connect to your Internet service provider (with SLIP or
PPP). The main advantage is that the speed is higher than ordinary
modem/telephone connections, and that you can have voice
conversations while downloading stuff. It only works if your
computer is equipped with an ISDN card and both you and your service
provider purchased an ISDN line from the phone company. For details,
read http://alumni.caltech.edu/~dank/isdn/ on the WWW.
This driver allows you to use an ISDN-card for networking
connections and as dialin/out device. The isdn-tty's have a built in
AT-compatible modem emulator. Network devices support autodial,
channel-bundling, callback and caller-authentication without having
a daemon running. A reduced T.70 protocol is supported with tty's
suitable for German BTX. On D-Channel, the protocols EDSS1
(Euro-ISDN) and 1TR6 (German style) are supported. See
Documentation/isdn/README for more information.
If you want to compile the ISDN code as a module ( = code which can
be inserted in and removed from the running kernel whenever you
want), say M here and read Documentation/modules.txt. The module
will be called isdn.o. If unsure, say N.
Support synchronous PPP
CONFIG_ISDN_PPP
Over digital connections such as ISDN, there is no need to
synchronize sender and recipient's clocks with start and stop bits
as is done over analog telephone lines. Instead, one can use
"synchronous PPP". Saying Y here will include this protocol. This
protocol is used by Cisco and Sun for example. So you want to say Y
here if the other end of your ISDN connection supports it. You will
need a special version of pppd (called ipppd) for using this
feature. See Documentation/isdn/README.syncppp and
Documentation/isdn/syncPPP.FAQ for more information.
Support generic MP (RFC 1717)
CONFIG_ISDN_MPP
With synchronous PPP enabled, it is possible to increase throughput
by bundling several ISDN-connections, using this protocol. See
Documentation/isdn/README.syncppp for more information.
Use VJ-compression with synchronous PPP
CONFIG_ISDN_PPP_VJ
This enables Van Jacobson header compression for synchronous PPP.
Say Y if the other end of the connection supports it.
Support audio via ISDN
CONFIG_ISDN_AUDIO
If you say Y here, the modem-emulator will support a subset of the
EIA Class 8 Voice commands. Using a getty with voice-support
(mgetty+sendfax by gert@greenie.muc.de with an extension, available
with the ISDN utility package for example), you will be able to use
your Linux box as an ISDN-answering machine. Of course, this must be
supported by the lowlevel driver also. Currently, the HiSax driver
is the only voice-supporting driver. See
Documentation/isdn/README.audio for more information.
X.25 PLP on top of ISDN
CONFIG_ISDN_X25
This feature provides the X.25 protocol over ISDN connections.
See Documentation/isdn/README.x25 for more information
if you are thinking about using this.
ISDN diversion services support
CONFIG_ISDN_DIVERSION
This option allows you to use some supplementary diversion
services in conjunction with the HiSax driver on an EURO/DSS1
line.
Supported options are CD (call deflection), CFU (Call forward
unconditional), CFB (Call forward when busy) and CFNR (call forward
not reachable). Additionally the actual CFU, CFB and CFNR state may
be interrogated.
The use of CFU, CFB, CFNR and interrogation may be limited to some
countries. The keypad protocol is still not implemented. CD should
work in all countries if the service has been subscribed to.
Please read the file Documentation/isdn/README.diversion.
ICN 2B and 4B support
CONFIG_ISDN_DRV_ICN
This enables support for two kinds of ISDN-cards made by a German
company called ICN. 2B is the standard version for a single ISDN
line with two B-channels, 4B supports two ISDN lines. For running
this card, additional firmware is necessary, which has to be
downloaded into the card using a utility which is distributed
separately. See Documentation/isdn/README and README.icn for more
information.
If you want to compile this as a module ( = code which can be
inserted in and removed from the running kernel whenever you want),
say M here and read Documentation/modules.txt. The module will be
called icn.o.
isdnloop support
CONFIG_ISDN_DRV_LOOP
This driver provides a virtual ISDN card. Its primary purpose is
testing of linklevel features or configuration without getting
charged by your service-provider for lots of phone calls.
You need will need the loopctrl utility from the latest isdn4k-utils
package to set up this driver.
HiSax SiemensChipSet driver support
CONFIG_ISDN_DRV_HISAX
This is a driver supporting the Siemens chipset on various
ISDN-cards (like AVM A1, Elsa ISDN cards, Teles S0-16.0, Teles
S0-16.3, Teles S0-8, Teles/Creatix PnP, ITK micro ix1 and many
compatibles).
HiSax is just the name of this driver, not the name of any hardware.
If you have a card with such a chipset, you should say Y here and
also to the configuration option of the driver for your particular
card, below.
If you want to compile this as a module ( = code which can be
inserted in and removed from the running kernel whenever you want),
say M here and read Documentation/modules.txt. The module will be
called hisax.o. See Documentation/isdn/README.HiSax for more
information on using this driver.
HiSax Support for EURO/DSS1
CONFIG_HISAX_EURO
Enable this if you have a EURO ISDN line.
Support for german chargeinfo
CONFIG_DE_AOC
If you have german AOC, you can enable this to get the charginfo.
Disable sending complete
CONFIG_HISAX_NO_SENDCOMPLETE
If you have trouble with some ugly exchanges or you live in
Australia select this option.
Disable sending low layer compatibility
CONFIG_HISAX_NO_LLC
If you have trouble with some ugly exchanges try to select this
option.
Disable keypad protocol option
CONFIG_HISAX_NO_KEYPAD
If you like to send special dialstrings including * or # without
using the keypad protocol, select this option.
HiSax Support for german 1TR6
CONFIG_HISAX_1TR6
Enable this if you have a old german 1TR6 line.
Teles 16.0/8.0
CONFIG_HISAX_16_0
This enables HiSax support for the Teles ISDN-cards S0-16.0, S0-8
and many compatibles.
See Documentation/isdn/README.HiSax on how to configure it using the
different cards, a different D-channel protocol, or non-standard
IRQ/port/shmem settings.
Teles 16.3 or PNP or PCMCIA
CONFIG_HISAX_16_3
This enables HiSax support for the Teles ISDN-cards S0-16.3 the
Teles/Creatix PnP and the Teles PCMCIA.
See Documentation/isdn/README.HiSax on how to configure it using the
different cards, a different D-channel protocol, or non-standard
IRQ/port settings.
Teles PCI
CONFIG_HISAX_TELESPCI
This enables HiSax support for the Teles PCI.
See Documentation/isdn/README.HiSax on how to configure it.
Teles S0Box
CONFIG_HISAX_S0BOX
This enables HiSax support for the Teles/Creatix parallel port
S0BOX. See Documentation/isdn/README.HiSax on how to configure it.
AVM A1 (Fritz)
CONFIG_HISAX_AVM_A1
This enables HiSax support for the AVM A1 (aka "Fritz").
See Documentation/isdn/README.HiSax on how to configure it using the
different cards, a different D-channel protocol, or non-standard
IRQ/port settings.
AVM PnP/PCI (Fritz!PNP/PCI)
CONFIG_HISAX_FRITZPCI
This enables HiSax support for the AVM "Fritz!PnP" and "Fritz!PCI".
See Documentation/isdn/README.HiSax on how to configure it.
AVM A1 PCMCIA (Fritz)
CONFIG_HISAX_AVM_A1_PCMCIA
This enables HiSax support for the AVM A1 "Fritz!PCMCIA").
See Documentation/isdn/README.HiSax on how to configure it.
Elsa cards
CONFIG_HISAX_ELSA
This enables HiSax support for the Elsa Mircolink ISA cards, for the
Elsa Quickstep series cards and Elsa PCMCIA.
See Documentation/isdn/README.HiSax on how to configure it using the
different cards, a different D-channel protocol, or non-standard
IRQ/port settings.
ITK ix1-micro Revision 2
CONFIG_HISAX_IX1MICROR2
This enables HiSax support for the ITK ix1-micro Revision 2 card.
See Documentation/isdn/README.HiSax on how to configure it using the
different cards, a different D-channel protocol, or non-standard
IRQ/port settings.
Eicon.Diehl Diva cards
CONFIG_HISAX_DIEHLDIVA
This enables HiSax support for the Eicon.Diehl Diva none PRO
versions passive ISDN cards.
See Documentation/isdn/README.HiSax on how to configure it using the
different cards, a different D-channel protocol, or non-standard
IRQ/port settings.
ASUSCOM ISA cards
CONFIG_HISAX_ASUSCOM
This enables HiSax support for the AsusCom and their OEM versions
passive ISDN ISA cards.
See Documentation/isdn/README.HiSax on how to configure it using the
different cards, a different D-channel protocol, or non-standard
IRQ/port settings.
TELEINT cards
CONFIG_HISAX_TELEINT
This enables HiSax support for the TELEINT SA1 semiactiv ISDN card.
See Documentation/isdn/README.HiSax on how to configure it using the
different cards, a different D-channel protocol, or non-standard
IRQ/port settings.
HFC-S based cards
CONFIG_HISAX_HFCS
This enables HiSax support for the HFC-S 2BDS0 based cards, like
teles 16.3c.
See Documentation/isdn/README.HiSax on how to configure it using the
different cards, a different D-channel protocol, or non-standard
IRQ/port settings.
Sedlbauer cards
CONFIG_HISAX_SEDLBAUER
This enables HiSax support for the Sedlbauer passive ISDN cards.
See Documentation/isdn/README.HiSax on how to configure it using the
different cards, a different D-channel protocol, or non-standard
IRQ/port settings.
USR Sportster internal TA
CONFIG_HISAX_SPORTSTER
This enables HiSax support for the USR Sportster internal TA card.
See Documentation/isdn/README.HiSax on how to configure it using a
different D-channel protocol, or non-standard IRQ/port settings.
MIC card
CONFIG_HISAX_MIC
This enables HiSax support for the ITH MIC card.
See Documentation/isdn/README.HiSax on how to configure it using a
different D-channel protocol, or non-standard IRQ/port settings.
NETjet card
CONFIG_HISAX_NETJET
This enables HiSax support for the NetJet from Traverse
Technologies.
See Documentation/isdn/README.HiSax on how to configure it using a
different D-channel protocol, or non-standard IRQ/port settings.
Niccy PnP/PCI card
CONFIG_HISAX_NICCY
This enables HiSax support for the Dr. Neuhaus Niccy PnP or PCI.
See Documentation/isdn/README.HiSax on how to configure it using a
different D-channel protocol, or non-standard IRQ/port settings.
Siemens I-Surf card
CONFIG_HISAX_ISURF
This enables HiSax support for the Siemens I-Talk/I-Surf card with
ISAR chip.
See Documentation/isdn/README.HiSax on how to configure it using a
different D-channel protocol, or non-standard IRQ/port settings.
HST Saphir card
CONFIG_HISAX_HSTSAPHIR
This enables HiSax support for the HST Saphir card.
See Documentation/isdn/README.HiSax on how to configure it using a
different D-channel protocol, or non-standard IRQ/port settings.
Telekom A4T card
CONFIG_HISAX_BKM_A4T
This enables HiSax support for the Telekom A4T card.
See Documentation/isdn/README.HiSax on how to configure it using a
different D-channel protocol, or non-standard IRQ/port settings.
Scitel Quadro card
CONFIG_HISAX_SCT_QUADRO
This enables HiSax support for the Scitel Quadro card.
See Documentation/isdn/README.HiSax on how to configure it using a
different D-channel protocol, or non-standard IRQ/port settings.
Gazel cards
CONFIG_HISAX_GAZEL
This enables HiSax support for the Gazel cards.
See Documentation/isdn/README.HiSax on how to configure it using a
different D-channel protocol, or non-standard IRQ/port settings.
HFC PCI-Bus cards
CONFIG_HISAX_HFC_PCI
This enables HiSax support for the HFC-S PCI 2BDS0 based cards.
For more informations see under Documentation/isdn/README.hfc-pci.
Winbond W6692 based cards
CONFIG_HISAX_W6692
This enables HiSax support for Winbond W6692 based PCI ISDN cards.
See Documentation/isdn/README.HiSax on how to configure it using a
different D-channel protocol, or non-standard IRQ/port settings.
HFC-S+, HFC-SP, HFC-PCMCIA cards (EXPERIMENTAL)
CONFIG_HISAX_HFC_SX
This enables HiSax support for the HFC-S+, HFC-SP and HFC-PCMCIA cards.
This code is not finished yet.
Am7930 (EXPERIMENTAL)
CONFIG_HISAX_AMD7930
This enables HiSax support for the AMD7930 chips on some SPARCs.
This code is not finished yet.
PCBIT-D support
CONFIG_ISDN_DRV_PCBIT
This enables support for the PCBIT ISDN-card. This card is
manufactured in Portugal by Octal. For running this card, additional
firmware is necessary, which has to be downloaded into the card
using a utility which is distributed separately. See
Documentation/isdn/README and Documentation/isdn/README.pcbit for
more information.
If you want to compile this as a module ( = code which can be
inserted in and removed from the running kernel whenever you want),
say M here and read Documentation/modules.txt. The module will be
called pcbit.o.
Spellcaster support (EXPERIMENTAL)
CONFIG_ISDN_DRV_SC
This enables support for the Spellcaster BRI ISDN boards. This
driver currently builds only in a modularized version ( = code which
can be inserted in and removed from the running kernel whenever you
want, details in Documentation/modules.txt); the module will be
called sc.o. See Documentation/isdn/README.sc and
http://www.spellcast.com for more information.
Eicon.Diehl active card support
CONFIG_ISDN_DRV_EICON
Say Y here if you have an Eicon active ISDN card. In order to use
this card, additional firmware is necessary, which has to be loaded
into the card using the eiconctrl utility which is part of the
latest isdn4k-utils package. Please read the file
Documentation/isdn/README.eicon for more information.
Eicon old-type card support
CONFIG_ISDN_DRV_EICON_ISA
Say Y here if you have an old-type Eicon active ISDN card. In order
to use this card, additional firmware is necessary, which has to be
loaded into the card using the eiconctrl utility which is part of
the latest isdn4k-utils package. Please read the file
Documentation/isdn/README.eicon for more information.
Support AT-Fax Class 2 commands
CONFIG_ISDN_TTY_FAX
If you say Y here, the modem-emulator will support a subset of the
Fax Class 2 commands. Using a getty with fax-support
(mgetty+sendfax, hylafax), you will be able to use your Linux box as
an ISDN-fax-machine. This must be supported by the lowlevel driver
also. See Documentation/isdn/README.fax for more information.
AVM CAPI2.0 support
CONFIG_ISDN_DRV_AVMB1
This enables support for the AVM B1/T1 ISDN networking cards.In
addition, a CAPI (Common ISDN Application Programming Interface, a
standard making it easy for programs to access ISDN hardware, see
http://www.capi.org/; to browse the WWW, you need to have access to
a machine on the Internet that has a program like lynx or netscape)
interface for this card is provided. In order to use this card,
additional firmware is necessary, which has to be downloaded into
the card using a utility which is distributed separately. Please
read the file Documentation/isdn/README.avmb1.
This code is also available as a module ( = code which can be
inserted in and removed from the running kernel whenever you want).
The module will be called avmb1.o. If you want to compile it as a
module, say M here and read Documentation/modules.txt.
AVM B1 ISA support
CONFIG_ISDN_DRV_AVMB1_B1ISA
Enable support for the ISA version of the AVM B1 card.
AVM B1 PCI support
CONFIG_ISDN_DRV_AVMB1_B1PCI
Enable support for the PCI version of the AVM B1 card.
AVM T1/T1-B ISA support
CONFIG_ISDN_DRV_AVMB1_T1ISA
Enable support for the AVM T1 T1B card.
Note: This is a PRI card and handle 30 B-channels.
AVM B1/M1/M2 PCMCIA support
CONFIG_ISDN_DRV_AVMB1_B1PCMCIA
Enable support for the PCMCIA version of the AVM B1 card.
AVM T1/T1-B PCI support
CONFIG_ISDN_DRV_AVMB1_T1PCI
Enable support for the AVM T1 T1B card.
Note: This is a PRI card and handle 30 B-channels.
Verbose reason code reporting (kernel size +=7K)
CONFIG_ISDN_DRV_AVMB1_VERBOSE_REASON
If you say Y here, the AVM B1 driver will give verbose reasons for
disconnecting. This will increase the size of the kernel by 7 KB. If
unsure, say Y.
IBM Active 2000 support (EXPERIMENTAL)
CONFIG_ISDN_DRV_ACT2000
Say Y here if you have an IBM Active 2000 ISDN card. In order to use
this card, additional firmware is necessary, which has to be loaded
into the card using a utility which is part of the latest
isdn4k-utils package. Please read the file
Documentation/isdn/README.act2000 for more information.
Support for AP1000 multicomputer
CONFIG_AP1000
This enables support for a SPARC based parallel multi-computer
called AP1000+. For details on our efforts to port Linux to this
machine see http://cap.anu.edu.au/cap/projects/linux or mail to
hackers@cafe.anu.edu.au
Support for Sun4 architecture
CONFIG_SUN4
Say Y here if, and only if, your machine is a Sun4. Note that
a kernel compiled with this option will run only on Sun4.
(And the current version will probably work only on sun4/330.)
SPARC ESP SCSI support
CONFIG_SCSI_SUNESP
This is the driver for the Sun ESP SCSI host adapter. The ESP
chipset is present in most SPARC-based computers.
SPARC /dev/openprom compatibility driver (EXPERIMENTAL)
CONFIG_SUN_OPENPROMIO
This driver provides user programs with an interface to the SPARC
PROM device tree. The driver implements a SunOS-compatible
interface and a NetBSD-compatible interface.
If you want to compile this as a module ( = code which can be
inserted in and removed from the running kernel whenever you want),
say M and read Documentation/modules.txt. If unsure, say Y.
Mostek real time clock support
CONFIG_SUN_MOSTEK_RTC
The Mostek RTC chip is used on all knows Sun computers except
some JavaStations. For a JavaStation you need to say Y both here
and to "Enhanced Real Time Clock Support".
Say Y here unless you are building a special purpose kernel.
JavaStation OS Flash SIMM (EXPERIMENTAL)
CONFIG_SUN_JSFLASH
This option enables a driver for JavaStation OS Flash driver.
Say N unless you want to boot from your Flash SIMM.
#Siemens SAB82532 serial support
#CONFIG_SAB82532
###
### Please someone fill these in.
###
IEEE 1394 (aka FireWire) support
CONFIG_IEEE1394
IEEE 1394 describes a high performance serial bus, which is also
known as FireWire(tm) or i.Link(tm) and is used for connecting all
sorts of devices (most notably digital video cameras).
If you have FireWire hardware and want to use it, say Y here. This
is the core support only, you will also need to select a driver for
your IEEE 1394 adapter.
If you want to compile this as a module ( = code which can be
inserted in and removed from the running kernel whenever you want),
say M here and read Documentation/modules.txt. The module will be
called ieee1394.o.
FireWire is a trademark by Apple Inc. and i.Link is a trademark by
Sony.
TI PCILynx IEEE 1394 support
CONFIG_IEEE1394_PCILYNX
Say Y here if you have a IEEE-1394 controller with the Texas
Instruments PCILynx chip. Note: this driver is written for revision
2 of this chip and may not work with revision 0.
If you want to compile this as a module ( = code which can be
inserted in and removed from the running kernel whenever you want),
say M here and read Documentation/modules.txt. The module will be
called pcilynx.o.
Use local RAM on PCILynx board
CONFIG_IEEE1394_PCILYNX_LOCALRAM
This option makes the PCILynx driver use local RAM available on some
PCILynx setups for Packet Control Lists. Local RAM may speed up
command processing because no PCI transfers are necessary during
use of the Packet Control Lists.
Note that there are no known PCILynx systems providing local RAM
except for the evaluation boards by Texas Instruments and that the
PCILynx does not reliably report missing RAM.
Unless you are absolutely sure that you have 64kB of local RAM and
that you want to use it or if you don't know what this is all about,
say N here.
Adaptec AIC-5800 IEEE 1394 support
CONFIG_IEEE1394_AIC5800
Say Y here if you have a IEEE 1394 controller using the Adaptec
AIC-5800 chip. All Adaptec host adapters (89xx series) use this
chip, as well as miro's DV boards.
If you want to compile this as a module ( = code which can be
inserted in and removed from the running kernel whenever you want),
say M here and read Documentation/modules.txt. The module will be
called aic5800.o.
OHCI (Open Host Controller Interface) support
CONFIG_IEEE1394_OHCI1394
Say Y here if you have a IEEE 1394 controller based on OHCI.
The current driver was only tested with OHCI chipsets made
by Texas Instruments. However, most third-party vendors use
TI chips.
If you want to compile this as a module ( = code which can be
inserted in and removed from the running kernel whenever you want),
say M here and read Documentation/modules.txt. The module will be
called ohci1394.o.
RAW IEEE 1394 I/O support
CONFIG_IEEE1394_RAWIO
Say Y here if you want support for the raw device. This is generally
a good idea, so you should say Y here. The raw device enables
direct communication of user programs to the IEEE 1394 bus.
If you want to compile this as a module ( = code which can be
inserted in and removed from the running kernel whenever you want),
say M here and read Documentation/modules.txt. The module will be
called raw1394.o.
#
# m68k-specific kernel options
# Documented by Chris Lawrence <quango@themall.net> et al.
#
Amiga support
CONFIG_AMIGA
This option enables support for the Amiga series of computers. If
you plan to use this kernel on an Amiga, say Y here and browse the
material available in Documentation/m68k; otherwise say N.
Atari support
CONFIG_ATARI
This option enables support for the 68000-based Atari series of
computers (including the TT, Falcon and Medusa). If you plan to use
this kernel on an Atari, say Y here and browse the material
available in Documentation/m68k; otherwise say N.
Hades support
CONFIG_HADES
This option enables support for the Hades Atari clone. If you plan
to use this kernel on a Hades, say Y here; otherwise say N.
Macintosh support
CONFIG_MAC
This option enables support for the Apple Macintosh series of
computers (yes, there is experimental support now, at least for part
of the series).
Say N unless you're willing to code the remaining necessary support.
;)
HP9000/300 support
CONFIG_HP300
This option enables support for the HP9000/300 series of
workstations. Support for these machines is still very experimental.
If you plan to try to use the kernel on such a machine say Y here.
Everybody else says N.
Sun 3 support
CONFIG_SUN3
This option enables support for the Sun 3 series of workstations. Be
warned that this support is very experimental. You will also want to
say Y to 68020 support and N to the other processors below.
Currently, it is not possible to build a kernel with support for the
Sun 3 and something else, so make sure you have said N to all the
other machines. This option does not support the sun3x series of
machines (the Sun 3/80 and 3/460). If you don't want to compile a
kernel for a Sun 3, say N.
68020 support
CONFIG_M68020
If you anticipate running this kernel on a computer with a MC68020
processor, say Y. Otherwise, say N. Note that the 68020 requires a
68851 MMU (Memory Management Unit) to run Linux/m68k, except on the
Sun 3, which provides its own version.
68030 support
CONFIG_M68030
If you anticipate running this kernel on a computer with a MC68030
processor, say Y. Otherwise, say N. Note that a MC68EC030 will not
work, as it does not include an MMU (Memory Management Unit).
68040 support
CONFIG_M68040
If you anticipate running this kernel on a computer with a MC68LC040
or MC68040 processor, say Y. Otherwise, say N. Note that an
MC68EC040 will not work, as it does not include an MMU (Memory
Management Unit).
68060 support
CONFIG_M68060
If you anticipate running this kernel on a computer with a MC68060
processor, say Y. Otherwise, say N.
Math emulation support (EXPERIMENTAL)
CONFIG_M68KFPU_EMU
At some point in the future, this will cause floating-point math
instructions to be emulated by the kernel on machines that lack a
floating-point math coprocessor. Thrill-seekers and chronically
sleep-deprived psychotic hacker types can say Y now, everyone else
should probably wait a while.
Math emulation only kernel
CONFIG_M68KFPU_EMU_ONLY
This option prevents any floating-point instructions from being
compiled into the kernel, thereby the kernel doesn't save any
floating point context anymore during task switches, so this
kernel will only be usable on machines without a floating-point
math coprocessor. This makes the kernel a bit faster as no tests
needs to be executed whether a floating-point instruction in the
kernel should be executed or not.
Math emulation extra precision
CONFIG_M68KFPU_EMU_EXTRAPREC
The fpu uses normally a few bit more during calculations for
correct rounding, the emulator can (often) do the same but this
extra calculation can cost quite some time, so you can disable
it here. The emulator will then "only" calculate with a 64 bit
mantissa and round slightly incorrect, what is more then enough
for normal usage.
Advanced processor options
CONFIG_ADVANCED_CPU
This gives you access to some advanced options for the CPU. The
defaults should be fine for most users, but these options may make
it possible for you to improve performance somewhat if you know what
you are doing. Most users should say N to this question.
Use read-modify-write instructions
CONFIG_RMW_INSNS
This allows to use certain instructions that work with indivisible
read-modify-write bus cycles. While this is faster than the
workaround of disabling interrupts, it can conflict with DMA
( = direct memory access) on many Amiga systems, and it is also said
to destabilize other machines. It is very likely that this will
cause serious problems on any Amiga or Atari Medusa if set. The only
configuration where it should work are 68030-based Ataris, where it
apparently improves performance. But you've been warned! Unless you
really know what you are doing, say N. Try Y only if you're quite
adventurous.
Amiga AutoConfig Identification
CONFIG_ZORRO
This enables support for automatic identification of Amiga expansion
cards that obey the AutoConfig(tm) specification.
Say Y if you want your expansion cards to be identified on bootup;
it will enlarge your kernel by about 10 KB. The identification
information is also available through /proc/zorro (say Y to
"/proc file system support"!).
Note that even if you say N here, you can still use your expansion
cards. If in doubt, say Y.
Amiga 1200/600 PCMCIA support (EXPERIMENTAL)
CONFIG_AMIGA_PCMCIA
Include support in the kernel for pcmcia on Amiga 1200 and Amiga
600. If you intend to use pcmcia cards say Y; otherwise say N.
Amiga GSP (TMS340x0) support
CONFIG_AMIGA_GSP
Include support for Amiga graphics cards that use the Texas
Instruments TMS340x0 GSP (Graphics Signal Processor) chips. Say Y
if you want to use a DMI Resolver or Commodore A2410 (Lowell)
graphics card on an Amiga; otherwise, say N.
DMI Resolver support
CONFIG_GSP_RESOLVER
Include support in the kernel for the DMI Resolver graphics card. If
you have one, say Y; otherwise, say N.
A2410 support
CONFIG_GSP_A2410
Include support in the kernel for the Commodore/University of Lowell
A2410 graphics card. If you have one, say Y; otherwise, say N.
Amiga Zorro II ramdisk support
CONFIG_AMIGA_Z2RAM
This enables support for using Chip RAM and Zorro II RAM as a
ramdisk or as a swap partition. Say Y if you want to include this
driver in the kernel. This driver is also available as a module
( = code which can be inserted in and removed from the running
kernel whenever you want). The module is called z2ram.o. If you want
to compile it as a module, say M here and read
Documentation/modules.txt.
Atari ST-RAM swap support
CONFIG_STRAM_SWAP
This enables support for using (parts of) ST-RAM as swap space,
instead of as normal system memory. This can first enhance system
performance if you have lots of alternate RAM (compared to the size
of ST-RAM), because executable code always will reside in faster
memory. ST-RAM will remain as ultra-fast swap space. On the other
hand, it allows much improved dynamic allocations of ST-RAM buffers
for device driver modules (e.g. floppy, ACSI, SLM printer, DMA
sound). The probability that such allocations at module load time
fail is drastically reduced.
Atari ACSI support
CONFIG_ATARI_ACSI
This enables support for the Atari ACSI interface. The driver
supports hard disks and CD-ROMs, which have 512-byte sectors, or can
be switched to that mode. Due to the ACSI command format, only disks
up to 1 GB are supported. Special support for certain ACSI to SCSI
adapters, which could relax that, isn't included yet. The ACSI
driver is also the basis for certain other drivers for devices
attached to the ACSI bus: Atari SLM laser printer, BioNet-100
Ethernet, and PAMsNet Ethernet. If you want to use one of these
devices, you need ACSI support, too.
This driver is also available as a module ( = code which can be
inserted in and removed from the running kernel whenever you want).
The module will be called acsi.o.
Probe all LUNs on each ACSI device
CONFIG_ACSI_MULTI_LUN
If you have a ACSI device that supports more than one LUN (Logical
Unit Number), e.g. a CD jukebox, you should say Y here so that all
will be found by the ACSI driver. An ACSI device with multiple LUNs
acts logically like multiple ACSI devices. The vast majority of ACSI
devices have only one LUN, and so most people can say N here and
should in fact do so, because it is safer.
Atari SLM laser printer support
CONFIG_ATARI_SLM
If you have an Atari SLM laser printer, say Y to include support for
it in the kernel. Otherwise, say N. This driver is also available as
a module ( = code which can be inserted in and removed from the
running kernel whenever you want). The module will be called
acsi_slm.o. Be warned: the driver needs much ST-RAM and can cause
problems due to that fact!
A3000 WD33C93A support
CONFIG_A3000_SCSI
If you have an Amiga 3000 and have SCSI devices connected to the
built-in SCSI controller, say Y. Otherwise, say N. This driver is
also available as a module ( = code which can be inserted in and
removed from the running kernel whenever you want). The module is
called wd33c93.o. If you want to compile it as a module, say M here
and read Documentation/modules.txt.
A2091 WD33C93A support
CONFIG_A2091_SCSI
If you have a Commodore A2091 SCSI controller, say Y. Otherwise,
say N. This driver is also available as a module ( = code which can
be inserted in and removed from the running kernel whenever you
want). The module is called wd33c93.o. If you want to compile it as
a module, say M here and read Documentation/modules.txt.
GVP Series II WD33C93A support
CONFIG_GVP11_SCSI
If you have a Great Valley Products Series II SCSI controller,
answer Y. Also say Y if you have a later model of GVP SCSI
controller (such as the GVP A4008 or a Combo board). Otherwise,
answer N. This driver does NOT work for the T-Rex series of
accelerators from TekMagic and GVP-M.
This driver is also available as a module ( = code which can be
inserted in and removed from the running kernel whenever you
want). The module will be called gvp11.o. If you want to compile it
as a module, say M here and read Documentation/modules.txt.
Cyberstorm SCSI support
CONFIG_CYBERSTORM_SCSI
If you have an Amiga with an original (MkI) Phase5 Cyberstorm
accelerator board and the optional Cyberstorm SCSI controller,
answer Y. Otherwise, say N.
Cyberstorm II SCSI support
CONFIG_CYBERSTORMII_SCSI
If you have an Amiga with a Phase5 Cyberstorm MkII accelerator board
and the optional Cyberstorm SCSI controller, say Y. Otherwise,
answer N.
Blizzard 2060 SCSI support
CONFIG_BLZ2060_SCSI
If you have an Amiga with a Phase5 Blizzard 2060 accelerator board
and want to use the onboard SCSI controller, say Y. Otherwise,
answer N.
Blizzard 1230IV/1260 SCSI support
CONFIG_BLZ1230_SCSI
If you have an Amiga 1200 with a Phase5 Blizzard 1230IV or Blizzard
1260 accelerator, and the optional SCSI module, say Y. Otherwise,
say N.
Blizzard PowerUP 603e+ SCSI support (EXPERIMENTAL)
CONFIG_BLZ603EPLUS_SCSI
If you have an Amiga 1200 with a Phase5 Blizzard PowerUP 603e+
accelerator, say Y. Otherwise, say N.
Fastlane SCSI support
CONFIG_FASTLANE_SCSI
If you have the Phase5 Fastlane Z3 SCSI controller, or plan to use
one in the near future, say Y to this question. Otherwise, say N.
Atari native SCSI support
CONFIG_ATARI_SCSI
If you have an Atari with built-in NCR5380 SCSI controller (TT,
Falcon, ...) say Y to get it supported. Of course also, if you have
a compatible SCSI controller (e.g. for Medusa). This driver is also
available as a module ( = code which can be inserted in and removed
from the running kernel whenever you want). The module is called
atari_scsi.o. If you want to compile it as a module, say M here and
read Documentation/modules.txt. This driver supports both styles of
NCR integration into the system: the TT style (separate DMA), and
the Falcon style (via ST-DMA, replacing ACSI). It does NOT support
other schemes, like in the Hades (without DMA).
Long delays for Toshiba CD-ROMs
CONFIG_ATARI_SCSI_TOSHIBA_DELAY
This option increases the delay after a SCSI arbitration to
accommodate some flaky Toshiba CD-ROM drives. Say Y if you intend to
use a Toshiba CD-ROM drive; otherwise, the option is not needed and
would impact performance a bit, so say N.
Hades SCSI DMA emulator
CONFIG_TT_DMA_EMUL
This option enables code which emulates the TT SCSI DMA chip on the
Hades. This increases the SCSI transfer rates at least ten times
compared to PIO transfers.
Ariadne support
CONFIG_ARIADNE
If you have a Village Tronic Ariadne Ethernet adapter, say Y.
Otherwise, say N.
This driver is also available as a module ( = code which can be
inserted in and removed from the running kernel whenever you
want). The module is called ariadne.o. If you want to compile it as
a module, say M here and read Documentation/modules.txt.
Ariadne II support
CONFIG_ARIADNE2
If you have a Village Tronic Ariadne II Ethernet adapter, say Y.
Otherwise, say N.
This driver is also available as a module ( = code which can be
inserted in and removed from the running kernel whenever you
want). The module is called ariadne2.o. If you want to compile it as
a module, say M here and read Documentation/modules.txt.
A2065 support
CONFIG_A2065
If you have a Commodore A2065 Ethernet adapter, say Y. Otherwise,
say N.
This driver is also available as a module ( = code which can be
inserted in and removed from the running kernel whenever you
want). The module is called a2065.o. If you want to compile it as a
module, say M here and read Documentation/modules.txt.
Hydra support
CONFIG_HYDRA
If you have a Hydra Ethernet adapter, say Y. Otherwise, say N.
This driver is also available as a module ( = code which can be
inserted in and removed from the running kernel whenever you
want). The module is called hydra.o. If you want to compile it as a
module, say M here and read Documentation/modules.txt.
Pcmcia NE2000 compatible support
CONFIG_APNE
If you have a pcmcia ne2000 compatible adapter, say Y. Otherwise,
say N.
This driver is also available as a module ( = code which can be
inserted in and removed from the running kernel whenever you
want). The module is called apne.o. If you want to compile it as a
module, say M here and read Documentation/modules.txt.
Atari Lance support
CONFIG_ATARILANCE
Say Y to include support for several Atari Ethernet adapters based
on the AMD Lance chipset: RieblCard (with or without battery), or
PAMCard VME (also the version by Rhotron, with different addresses).
BioNet-100 support
CONFIG_ATARI_BIONET
Say Y to include support for BioData's BioNet-100 Ethernet adapter
for the ACSI port. The driver works (has to work...) with a polled
I/O scheme, so it's rather slow :-(
PAMsNet support
CONFIG_ATARI_PAMSNET
Say Y to include support for the PAMsNet Ethernet adapter for the
ACSI port ("ACSI node"). The driver works (has to work...) with a
polled I/O scheme, so it's rather slow :-(
Multiface Card III parallel support
CONFIG_MULTIFACE_III_LP
If you have a Multiface III card for your Amiga, and want to use its
parallel port in Linux, say Y. Otherwise, say N.
This driver is also available as a module ( = code which can be
inserted in and removed from the running kernel whenever you want).
The module is called lp_m68k.o. If you want to compile it as a
module, say M here and read Documentation/modules.txt.
Amiga mouse support
CONFIG_AMIGAMOUSE
If you want to be able to use an Amiga mouse in Linux, say Y.
This driver is also available as a module ( = code which can be
inserted in and removed from the running kernel whenever you want).
The module is called amigamouse.o. If you want to compile it as a
module, say M here and read Documentation/modules.txt.
Amiga Copper Console
CONFIG_COPCON
This configures the console to use the Amiga's graphics coprocessor
for scrolling, instead of using the CPU. This option markedly
improves response times in the high color modes (5 bitplanes and
up). If you would like to use this, say Y; otherwise, say N.
Atari mouse support
CONFIG_ATARIMOUSE
If you want to be able to use an Atari mouse in Linux, say Y.
This driver is also available as a module ( = code which can be
inserted in and removed from the running kernel whenever you want).
The module is called atarimouse.o. If you want to compile it as a
module, say M here and read Documentation/modules.txt.
Atari MFP serial support
CONFIG_ATARI_MFPSER
If you like to use the MFP serial ports ("Modem1", "Serial1") under
Linux, say Y. The driver equally supports all kinds of MFP serial
ports and automatically detects whether Serial1 is available.
This driver is also available as a module ( = code which can be
inserted in and removed from the running kernel whenever you want).
If you want to compile it as a module, say M here and read
Documentation/modules.txt.
Note for Falcon users: You also have an MFP port, it's just not
wired to the outside... But you could use the port under Linux.
Atari SCC serial support
CONFIG_ATARI_SCC
If you have serial ports based on a Zilog SCC chip (Modem2, Serial2,
LAN) and like to use them under Linux, say Y. All built-in SCC's are
supported (TT, MegaSTE, Falcon), and also the ST-ESCC. If you have
two connectors for channel A (Serial2 and LAN), they are visible as
two separate devices.
This driver is also available as a module ( = code which can be
inserted in and removed from the running kernel whenever you want).
If you want to compile it as a module, say M here and read
Documentation/modules.txt.
Atari SCC serial DMA support
CONFIG_ATARI_SCC_DMA
This enables DMA support for receiving data on channel A of the SCC.
If you have a TT you may say Y here and read
drivers/char/atari_SCC.README. All other users should say N here,
because only the TT has SCC-DMA, even if your machine keeps claiming
so at boot time.
Atari MIDI serial support
CONFIG_ATARI_MIDI
If you want to use your Atari's MIDI port in Linux, say Y.
This driver is also available as a module ( = code which can be
inserted in and removed from the running kernel whenever you
want). If you want to compile it as a module, say M here and read
Documentation/modules.txt.
Atari DSP56k Digital Signal Processor support (EXPERIMENTAL)
CONFIG_ATARI_DSP56K
If you want to be able to use the DSP56001 in Falcons, say Y. This
driver is still experimental, and if you don't know what it is, or
if you don't have this processor, just say N.
This driver is also available as a module ( = code which can be
inserted in and removed from the running kernel whenever you want).
If you want to compile it as a module, say M here and read
Documentation/modules.txt.
Amiga builtin serial support
CONFIG_AMIGA_BUILTIN_SERIAL
If you want to use your Amiga's built-in serial port in Linux,
answer Y.
This driver is also available as a module ( = code which can be
inserted in and removed from the running kernel whenever you
want). If you want to compile it as a module, say M here and read
Documentation/modules.txt.
GVP IO-Extender support
CONFIG_GVPIOEXT
If you want to use a GVP IO-Extender serial card in Linux, say Y.
Otherwise, say N.
Multiface Card III serial support
CONFIG_MULTIFACE_III_TTY
If you want to use a Multiface III card's serial port in Linux,
answer Y.
This driver is also available as a module ( = code which can be
inserted in and removed from the running kernel whenever you want).
If you want to compile it as a module, say M here and read
Documentation/modules.txt.
Amiga or Atari DMA sound support
CONFIG_DMASOUND
If you want to use the internal audio of your Atari or Amiga in
Linux, answer Y to this question. This will provide a Sun-like
/dev/audio, compatible with the Linux/i386 sound system. Otherwise,
say N.
This driver is also available as a module ( = code which can be
inserted in and removed from the running kernel whenever you
want). If you want to compile it as a module, say M here and read
Documentation/modules.txt.
HP DCA serial support
CONFIG_HPDCA
If you want to use the internal "DCA" serial ports on an HP300
machine, say Y here.
HP on-board LANCE support
CONFIG_HPLANCE
If you want to use the builtin "LANCE" Ethernet controller on an
HP300 machine, say Y here.
Sun 3 onboard LANCE support
CONFIG_SUN3LANCE
If you want to use the onboard AMD "LANCE" (le) Ethernet hardware
on a Sun 3, you will need to say Y here.
DIO bus support
CONFIG_DIO
Say Y here to enable support for the "DIO" expansion bus used in
HP300 machines. If you are using such a system you almost certainly
want this.
Processor Type
CONFIG_6xx
There are three types of PowerPC chips supported. The more common
types (601, 603, 604, 740, 750), the Motorola embedded versions (821,
823, 850, 855, 860), and the IBM embedded versions (403 and 405).
Unless you are building a kernel for one of the embedded processor
systems, choose 6xx.
Machine Type
CONFIG_PMAC
Linux currently supports several different kinds of PowerPC-based
machines: Apple Power Macintoshes and clones (such as the Motorola
Starmax series), PReP (PowerPC Reference Platform) machines such as
the Motorola PowerStack, Amiga Power-Up systems (APUS), CHRP and the
embedded MBX boards from Motorola. Currently, a single kernel binary
only supports one type or the other. However, there is very early
work on support for CHRP, PReP and PowerMac's from a single binary.
Support for Open Firmware device tree in /proc
CONFIG_PROC_DEVICETREE
This option adds a device-tree directory under /proc which contains
an image of the device tree that the kernel copies from Open
Firmware. If unsure, say Y here.
MESH (Power Mac internal SCSI) support
CONFIG_SCSI_MESH
Many Power Macintoshes and clones have a MESH (Macintosh Enhanced
SCSI Hardware) SCSI bus adaptor (the 7200 doesn't, but all of the
other Power Macintoshes do). Say Y to include support for this SCSI
adaptor. This driver is also available as a module called mesh.o
( = code which can be inserted in and removed from the running
kernel whenever you want). If you want to compile it as a module,
say M here and read Documentation/modules.txt.
Maximum synchronous transfer rate
CONFIG_SCSI_MESH_SYNC_RATE
On Power Macintoshes (and clones) where the MESH SCSI bus adaptor
drives a bus which is entirely internal to the machine (such as the
7500, 7600, 8500, etc.), the MESH is capable of synchronous
operation at up to 10 MB/s. On machines where the SCSI bus
controlled by the MESH can have external devices connected, it is
usually rated at 5 MB/s. 5 is a safe value here unless you know the
MESH SCSI bus is internal only; in that case you can say 10. Say 0
to disable synchronous operation.
53C94 (Power Mac external SCSI) support
CONFIG_SCSI_MAC53C94
On Power Macintoshes (and clones) with two SCSI buses, the external
SCSI bus is usually controlled by a 53C94 SCSI bus adaptor. Older
machines which only have one SCSI bus, such as the 7200, also use
the 53C94. Say Y to include support for the 53C94.
This driver is also available as a module called mac53c94.o ( = code
which can be inserted in and removed from the running kernel
whenever you want). If you want to compile it as a module, say M
here and read Documentation/modules.txt.
MACE (Power Mac Ethernet) support
CONFIG_MACE
Power Macintoshes and clones with Ethernet built-in on the
motherboard will usually use a MACE (Medium Access Control for
Ethernet) interface. Say Y to include support for the MACE chip.
This driver is also available as a module called mace.o ( = code
which can be inserted in and removed from the running kernel
whenever you want). If you want to compile it as a module, say M
here and read Documentation/modules.txt.
BMAC (G3 ethernet) support
CONFIG_BMAC
Say Y for support of BMAC Ethernet interfaces. These are used on G3
computers.
This driver is also available as a module called bmac.o ( = code
which can be inserted in and removed from the running kernel
whenever you want). If you want to compile it as a module, say M
here and read Documentation/modules.txt.
Video For Linux
CONFIG_VIDEO_DEV
Support for audio/video capture and overlay devices and FM radio
cards. The exact capabilities of each device vary. User tools for
this are available from
ftp://ftp.uk.linux.org/pub/linux/video4linux .
If you are interested in writing a driver for such an audio/video
device or user software interacting with such a driver, please read
the file Documentation/video4linux/API.html.
This driver is also available as a module called videodev.o ( = code
which can be inserted in and removed from the running kernel
whenever you want). If you want to compile it as a module, say M
here and read Documentation/modules.txt.
AIMSlab RadioTrack (aka RadioReveal) support
CONFIG_RADIO_RTRACK
Choose Y here if you have one of these FM radio cards, and then fill
in the port address below.
Note that newer AIMSlab RadioTrack cards have a different chipset
and are not supported by this driver. For these cards, use the
RadioTrack II driver below.
If you have a GemTeks combined (PnP) sound- and radio card you must
use this driver as a module and setup the card with isapnptools. You
must also pass the module a suitable io parameter, 0x248 has been
reported to be used by these cards.
In order to control your radio card, you will need to use programs
that are compatible with the Video for Linux API. Information on
this API and pointers to "v4l" programs may be found on the WWW at
http://roadrunner.swansea.uk.linux.org/v4l.shtml . More information
is contained in the file Documentation/video4linux/radiotrack.txt.
If you want to compile this driver as a module ( = code which can be
inserted in and removed from the running kernel whenever you want),
say M here and read Documentation/modules.txt. The module will be
called radio-aimslab.o.
RadioTrack i/o port
CONFIG_RADIO_RTRACK_PORT
Enter either 0x30f or 0x20f here. The card default is 0x30f, if you
haven't changed the jumper setting on the card.
AIMSlab RadioTrack II support
CONFIG_RADIO_RTRACK2
Choose Y here if you have this FM radio card, and then fill in the
port address below.
In order to control your radio card, you will need to use programs
that are compatible with the Video for Linux API. Information on
this API and pointers to "v4l" programs may be found on the WWW at
http://roadrunner.swansea.uk.linux.org/v4l.shtml .
If you want to compile this driver as a module ( = code which can be
inserted in and removed from the running kernel whenever you want),
say M here and read Documentation/modules.txt. The module will be
called radio-rtrack2.o.
RadioTrack II i/o port
CONFIG_RADIO_RTRACK2_PORT
Enter either 0x30c or 0x20c here. The card default is 0x30c, if you
haven't changed the jumper setting on the card.
Aztech/Packard Bell Radio
CONFIG_RADIO_AZTECH
Choose Y here if you have one of these FM radio cards, and then fill
in the port address below.
In order to control your radio card, you will need to use programs
that are compatible with the Video for Linux API. Information on
this API and pointers to "v4l" programs may be found on the WWW at
http://roadrunner.swansea.uk.linux.org/v4l.shtml .
If you want to compile this driver as a module ( = code which can be
inserted in and removed from the running kernel whenever you want),
say M here and read Documentation/modules.txt. The module will be
called radio-aztech.o.
Aztech/Packard Bell radio card i/o port
CONFIG_RADIO_AZTECH_PORT
Enter either 0x350 or 0x358 here. The card default is 0x350, if you
haven't changed the setting of jumper JP3 on the card. Removing the
jumper sets the card to 0x358.
ADS Cadet AM/FM Radio Tuner Card
CONFIG_RADIO_CADET
Choose Y here if you have one of these AM/FM radio cards, and then
fill in the port address below.
In order to control your radio card, you will need to use programs
that are compatible with the Video for Linux API. Information on
this API and pointers to "v4l" programs may be found on the WWW at
http://roadrunner.swansea.uk.linux.org/v4l.shtml .
Further documentation on this driver can be found on the WWW at
http://linux.blackhawke.net/cadet.html .
If you want to compile this driver as a module ( = code which can be
inserted in and removed from the running kernel whenever you want),
say M here and read Documentation/modules.txt. The module will be
called radio-cadet.o.
ADS Cadet AM/FM Radio Tuner Card I/O Port
CONFIG_RADIO_CADET_PORT
Enter the I/O address of the card here (most commonly 330).
SF16FMI Radio
CONFIG_RADIO_SF16FMI
Choose Y here if you have one of these FM radio cards, and then fill
in the port address below.
In order to control your radio card, you will need to use programs
that are compatible with the Video for Linux API. Information on
this API and pointers to "v4l" programs may be found on the WWW at
http://roadrunner.swansea.uk.linux.org/v4l.shtml .
If you want to compile this driver as a module ( = code which can be
inserted in and removed from the running kernel whenever you want),
say M here and read Documentation/modules.txt. The module will be
called radio-sf16fmi.o
SF16FMI I/O port (0x284 or 0x384)
CONFIG_RADIO_SF16FMI_PORT
Enter the I/O port of your SF16FMI radio card.
Typhoon Radio
CONFIG_RADIO_TYPHOON
Choose Y here if you have one of these FM radio cards, and then fill
in the port address and the frequency used for muting below.
In order to control your radio card, you will need to use programs
that are compatible with the Video for Linux API. Information on
this API and pointers to "v4l" programs may be found on the WWW at
http://roadrunner.swansea.uk.linux.org/v4l.shtml .
If you want to compile this driver as a module ( = code which can be
inserted in and removed from the running kernel whenever you want),
say M here and read Documentation/modules.txt. The module will be
called radio-typhoon.o
Support for /proc/radio-typhoon
CONFIG_RADIO_TYPHOON_PROC_FS
Say Y here if you want the typhoon radio card driver to write
status information (frequency, volume, muted, mute frequency,
base address) to /proc/radio-typhoon. The file can be viewed with
your favorite pager (i.e. use "more /proc/radio-typhoon" or "less
/proc/radio-typhoon" or simply "cat /proc/radio-typhoon").
Typhoon I/O port (0x316 or 0x336)
CONFIG_RADIO_TYPHOON_PORT
Enter the I/O port of your Typhoon or EcoRadio radio card.
Typhoon frequency set when muting the device (kHz)
CONFIG_RADIO_TYPHOON_MUTEFREQ
Enter the frequency used for muting the radio. The device is never
completely silent. If the volume is just turned down, you can still
hear silent voices and music. For that reason, the frequency of the
radio device is set to the frequency you can enter here whenever
the device is muted. There should be no local radio station at that
frequency.
Zoltrix Radio
CONFIG_RADIO_ZOLTRIX
Choose Y here if you have one of these FM radio cards, and then fill
in the port address below.
In order to control your radio card, you will need to use programs
that are compatible with the Video for Linux API. Information on
this API and pointers to "v4l" programs may be found on the WWW at
http://roadrunner.swansea.uk.linux.org/v4l.shtml .
If you want to compile this driver as a module ( = code which can be
inserted in and removed from the running kernel whenever you want),
say M here and read Documentation/modules.txt. The module will be
called radio-zoltrix.o
ZOLTRIX I/O port (0x20c or 0x30c)
CONFIG_RADIO_ZOLTRIX_PORT
Enter the I/O port of your Zoltrix radio card.
IIC on parallel port
CONFIG_I2C_PARPORT
I2C is a simple serial bus system used in many micro controller
applications. Saying Y here will allow you to use your parallel port
as an I2C interface.
If you want to compile this driver as a module ( = code which can be
inserted in and removed from the running kernel whenever you want),
say M here and read Documentation/modules.txt. The module will be
called i2c-parport.o.
Miro PCM20 Radio
CONFIG_RADIO_MIROPCM20
Choose Y here if you have this FM radio card. You also need to say Y
to "ACI mixer (miroPCM12/PCM20)" (in "additional low level sound
drivers") for this to work.
In order to control your radio card, you will need to use programs
that are compatible with the Video for Linux API. Information on
this API and pointers to "v4l" programs may be found on the WWW at
http://roadrunner.swansea.uk.linux.org/v4l.shtml .
If you want to compile this driver as a module ( = code which can be
inserted in and removed from the running kernel whenever you want),
say M here and read Documentation/modules.txt. The module will be
called radio-miropcm20.o
GemTek Radio Card
CONFIG_RADIO_GEMTEK
Choose Y here if you have this FM radio card, and then fill in the
port address below.
In order to control your radio card, you will need to use programs
that are compatible with the Video for Linux API. Information on
this API and pointers to "v4l" programs may be found on the WWW at
http://roadrunner.swansea.uk.linux.org/v4l.shtml .
If you want to compile this driver as a module ( = code which can be
inserted in and removed from the running kernel whenever you want),
say M here and read Documentation/modules.txt. The module will be
called radio-gemtek.o.
GemTek i/o port
CONFIG_RADIO_GEMTEK_PORT
Enter either 0x20c, 0x30c, 0x24c or 0x34c here. The card default is
0x34c, if you haven't changed the jumper setting on the card.
PlanB Video-In for PowerMacs
CONFIG_VIDEO_PLANB
PlanB is the V4L driver for the PowerMac 7x00/8x00 series video
input hardware. If you want to experiment with this, say Y.
Otherwise, or if you don't understand a word, say N.
See http://www.cpu.lu/~mlan/planb.html for more info.
Saying M will compile this driver as a module (planb.o).
TerraTec ActiveRadio
CONFIG_RADIO_TERRATEC
Choose Y here if you have this FM radio card, and then fill in the
port address below. (TODO)
Note: This driver is in its early stages. Right now volume and
frequency control and muting works at least for me, but
unfortunately i have not found anybody who wants to use this card
with linux. So if it is this what YOU are trying to do right now,
PLEASE DROP ME A NOTE!! Rolf Offermanns (rolf@offermanns.de)
In order to control your radio card, you will need to use programs
that are compatible with the Video for Linux API. Information on
this API and pointers to "v4l" programs may be found on the WWW at
http://roadrunner.swansea.uk.linux.org/v4l.shtml; to browse the WWW,
you need to have access to a machine on the Internet that has a
program like lynx or netscape.
If you want to compile this driver as a module ( = code which can be
inserted in and removed from the running kernel whenever you want),
say M here and read Documentation/modules.txt. The module will be
called radio-terratec.o.
# Zoran ZR36057/36060 support
# CONFIG_VIDEO_ZORAN
# Include support for Iomega Buz
# CONFIG_VIDEO_BUZ
BT848 Video For Linux
CONFIG_VIDEO_BT848
Support for BT848 based frame grabber/overlay boards. This includes
the Miro, Hauppauge and STB boards. Please read the material in
Documentation/video4linux/bttv for more information.
This driver is also available as a module called bttv.o ( = code
which can be inserted in and removed from the running kernel
whenever you want). If you want to compile it as a module, say M
here and read Documentation/modules.txt.
ZR36120/36125 Video for Linux
CONFIG_VIDEO_ZR36120
Support for ZR36120/ZR36125 based frame grabber/overlay boards.
This includes the Victor II, WaveWatcher, Video Wonder, Maxi-TV,
and Buster boards. Please read the material in
Documentation/video4linux/zr36120.txt for more information.
This driver is also available as a module called zr36120.o ( = code
which can be inserted in and removed from the running kernel
whenever you want). If you want to compile it as a module, say M
here and read Documentation/modules.txt.
SAA5249 Teletext processor
CONFIG_VIDEO_SAA5249
Support for I2C bus based teletext using the SAA5249 chip. At the
moment this is only useful on some European WinTV cards.
This driver is also available as a module called saa5249.o ( = code
which can be inserted in and removed from the running kernel
whenever you want). If you want to compile it as a module, say M
here and read Documentation/modules.txt.
Quickcam BW Video For Linux
CONFIG_VIDEO_BWQCAM
Say Y have if you the black and white version of the QuickCam
camera. See the next option for the color version.
This driver is also available as a module called bw-qcam.o ( = code
which can be inserted in and removed from the running kernel
whenever you want). If you want to compile it as a module, say M
here and read Documentation/modules.txt.
Colour QuickCam Video For Linux
CONFIG_VIDEO_CQCAM
This is the video4linux driver for the color version of the
Connectix Quickcam. If you have one of these cameras, say Y here,
otherwise say N. This driver does not work with the original
monochrome Quickcam, Quickcam VC or QuickClip. It is also available
as a module (c-qcam.o).
Mediavision Pro Movie Studio Video For Linux
CONFIG_VIDEO_PMS
Say Y if you have such a thing. This driver is also available as a
module called pms.o ( = code which can be inserted in and removed
from the running kernel whenever you want). If you want to compile
it as a module, say M here and read Documentation/modules.txt.
Compaq SMART2 support
CONFIG_BLK_CPQ_DA
This is the driver for Compaq Smart Array controllers.
Everyone using these boards should say Y here.
See the file Documentation/cpqarray.txt for the current list of
boards supported by this driver, and for further information
on the use of this driver.
QuickNet Internet LineJack/PhoneJack support
CONFIG_PHONE_IXJ
Say M if you have a telephony card manufactured by Quicknet
Technologies, Inc. These include the Internet PhoneJACK and
Internet LineJACK Telephony Cards.
For the ISA versions of these products, you can configure the
cards using the isapnp tools (pnpdump/isapnp) or you can use the
isapnp support. Please read:
/usr/src/linux/Documentation/telephony/ixj.txt.
For more information on these cards, see Quicknet's website at:
http://www.quicknet.net/
If you do not have any Quicknet telephony cards, you can safely
ignore this option.
/dev/agpgart (AGP Support) (EXPERIMENTAL)
CONFIG_AGP
The agpgart kernel module is necessary to use the AGP features
of your 3D rendering video card. It acts as a sort of "AGP
driver" for the motherboard's chipset.
Loading this module into the kernel will allow the glx module to
program the GART (graphics aperture relocation table) registers
with appropriate values to transfer commands to the card.
If you need more texture memory than you can get with the AGP GART
(theoretically up to 256 megs, but in practice usually 64 or 128
megs due to kernel allocation issues), you could use PCI accesses
and have up to a couple gigs of texture space.
Note that this is the only mean to have get XFree4/GLX use
write-combining with MTRR support on AGP bus. Without, OpenGL
direct rendering will be a lot slower but still faster than PIO.
For the moment, most people should say no, unless you want to
test the GLX component which can be downloaded from
http://glx.on.openprojects.net/
or need to use the 810 Xserver in XFree 3.3.6
Intel 440LX/BX/GX support
CONFIG_AGP_INTEL
This option give you AGP support for the GLX component of the
"soon to be released" XFree86-4 on Intel 440LX/BX/GX chipsets.
For the moment, most people should say no, unless you want to
test the GLX component which can be downloaded from
http://glx.on.openprojects.net/
Intel I810/I810 DC100/I810e support
CONFIG_AGP_I810
This option give you AGP support for the Xserver for the intel
810 chipset boards. This is required to do any useful video
modes.
VIA VP3/MVP3/Apollo Pro support
CONFIG_AGP_VIA
This option give you AGP support for the GLX component of the
"soon to be released" XFree86-4 on VIA MPV3/Apollo Pro chipsets.
For the moment, most people should say no, unless you want to
test the GLX component which can be downloaded from
http://glx.on.openprojects.net/
AMD Irongate support
CONFIG_AGP_AMD
This option give you AGP support for the GLX component of the
"soon to be released" XFree86-4 on Intel AMD Irongate chipset.
For the moment, most people should say no, unless you want to
test the GLX component which can be downloaded from
http://glx.on.openprojects.net/
Generic SiS support
CONFIG_AGP_SIS
This option give you AGP support for the GLX component of the
"soon to be released" XFree86-4 on Silicon Integrated Systems [SiS]
chipsets.
Note than 5591/5592 AGP chipsets are NOT supported.
For the moment, most people should say no, unless you want to
test the GLX component which can be downloaded from
http://glx.on.openprojects.net/
ALI M1541 support
CONFIG_AGP_ALI
This option give you AGP support for the GLX component of the
"soon to be released" XFree86-4 on ALI M1541 chipset.
For the moment, most people should say no, unless you want to
test the GLX component which can be downloaded from
http://glx.on.openprojects.net/
#
# ARM options
#
CPU Optimization
CONFIG_CPU_ARM2
This selects the processor type of your CPU. This is only used to
determine C compiler optimization options, and can affect the
compatibility of the kernel on other processors. If you specify
ARM6, the kernel should work on all 32-bit processors. If you
specify ARM2, ARM250 or ARM3, it should work on all 26-bit
processors. If you're not sure, set it to "None".
ARM System type
CONFIG_ARCH_ARC
This selects what ARM system you wish to build the kernel for. It
also selects to some extent the CPU type. If you are unsure what
to set this option to, please consult any information supplied with
your system.
Include support for Chalice CATS boards
CONFIG_CATS
Say Y here if you intend to run this kernel on a CATS system.
Include support for Intel EBSA285
CONFIG_ARCH_EBSA285
board.
Include support for the NetWinder
CONFIG_ARCH_NETWINDER
Say Y here if you intend to run this kernel on the NetWinder.
Virtual/Physical Memory Split
CONFIG_1GB
If you are compiling a kernel which will never run on a machine
with more than 1 Gigabyte total physical RAM, answer "3GB/1GB"
here (default choice).
On 32-bit x86 systems Linux can use up to 64 Gigabytes of physical
memory. However 32-bit x86 processors have only 4 Gigabytes of
virtual memory space. This option specifies the maximum amount of
virtual memory space one process can potentially use. Certain types
of applications (eg. database servers) perform better if they have
as much virtual memory per process as possible.
The remaining part of the 4G virtual memory space is used by the
kernel to 'permanently map' as much physical memory as possible.
Certain types of applications perform better if there is more
'permanently mapped' kernel memory.
[WARNING! Certain boards do not support PCI DMA to physical addresses
bigger than 2 Gigabytes. Non-DMA-able memory must not be permanently
mapped by the kernel, thus a 1G/3G split will not work on such boxes.]
As you can see there is no 'perfect split' - the fundamental
problem is that 4G of 32-bit virtual memory space is short. So
you'll have to pick your own choice - depending on the application
load of your box. A 2G/2G split is typically a good choice for a
generic Linux server with lots of RAM.
Any potentially remaining (not permanently mapped) part of physical
memory is called 'high memory'. How much total high memory the kernel
can handle is influenced by the (next) High Memory configuration option.
The actual amount of total physical memory will either be
autodetected or can be forced by using a kernel command line option
such as "mem=256M". (Try "man bootparam" or see the documentation of
your boot loader (lilo or loadlin) about how to pass options to the
kernel at boot time. The lilo procedure is also explained in the
SCSI-HOWTO, available from http://www.linuxdoc.org/docs.html#howto .)
Math emulation
CONFIG_NWFPE
Say Y to include the NWFPE floating point emulator in the kernel.
This is necessary to run most binaries. Linux does not currently
support floating point hardware so you need to say Y here even if
your machine has an FPA or floating point co-processor module.
It is also possible to say M to build the emulator as a module
(nwfpe.o) or indeed to leave it out altogether. However, unless you
know what you are doing this can easily render your machine
unbootable. Saying Y is the safe option.
You may say N here if you are going to load the Acorn FPEmulator
early in the bootup.
DS1620 Thermometer support
CONFIG_DS1620
Say Y here to include support for the thermal management hardware
found in the NetWinder. This driver allows the user to control the
temperature set points and to read the current temperature.
It is also possible to say M here to build it as a module (ds1620.o)
It is recommended to be used on a NetWinder, but it is not a
necessity.
Verbose kernel error messages
CONFIG_DEBUG_ERRORS
This option controls verbose debugging information which can be
printed when the kernel detects an internal error. This debugging
information is useful to kernel hackers when tracking down problems,
but mostly meaningless to other people. It's safe to say Y unless
you are concerned with the code size or don't want to see these
messages.
Build Tools Selection
CONFIG_BINUTILS_NEW
Say Y here if and only if you're using GCC 2.8.1/EGCS with a
binutils version >= 2.8.1 to compile the kernel (check with "gcc
--version" and "ld -v").
Compile kernel with frame pointer
CONFIG_FRAME_POINTER
If you say Y here, the resulting kernel will be slightly larger and
slower, but it will give useful debugging information. If you don't
debug the kernel, you can say N.
User fault debugging
CONFIG_DEBUG_USER
When a user program crashes due to an exception, the kernel can
print a brief message explaining what the problem was. This is
sometimes helpful for debugging but serves no purpose on a
production system. Most people should say N here.
Include gdb debugging information in kernel binary
CONFIG_DEBUG_INFO
Say Y here to include source-level debugging information in the
`vmlinux' binary image. This is handy if you want to use gdb or
addr2line to debug the kernel. It has no impact on the in-memory
footprint of the running kernel but it can increase the amount of
time and disk space needed for compilation of the kernel. If in
doubt say N.
Split initialization functions into discardable section
CONFIG_TEXT_SECTIONS
If you say Y here, kernel code that is only used during
initialization is collected into a special area of the kernel so
that it can be discarded and the memory reclaimed when
initialization is complete. In addition, if the kernel you wish to
build is able to run on multiple architectures, it allows the unused
code to be discarded. Some versions of binutils, however, have a bug
that causes the kernel to crash during startup when this option is
enabled. Say Y unless you experience problems that you suspect may
be caused by this.
Disable pgtable cache (EXPERIMENTAL)
CONFIG_NO_PGT_CACHE
Normally the kernel maintains a `quicklist' of preallocated
pagetable structures in order to increase performance. On machines
with very few pages this may however be a loss. Say Y here to
disable the pgtable cache.
RISC OS personality
CONFIG_ARTHUR
Say Y here to include the kernel code necessary if you want to run
Acorn RISC OS/Arthur binaries under Linux. This code is still very
experimental; if this sounds frightening, say N and sleep in peace.
You can also say M here to compile this support as a module (which
will be called arthur.o).
Initial kernel command line
CONFIG_CMDLINE
On some architectures (EBSA110 and CATS), there is currently no way
for the boot loader to pass arguments to the kernel. For these
architectures, you should supply some command-line options at build
time by entering them here. As a minimum, you should specify the
memory size and the root device (e.g., mem=64M root=/dev/nfs)
Hardware alignment trap (EXPERIMENTAL)
CONFIG_ALIGNMENT_TRAP
ARM processors can not fetch/store information which is not
naturally aligned on the bus, i.e., a 4 byte fetch must start at an
address divisible by 4. On 32-bit ARM processors, these non-aligned
fetch/store instructions will be emulated in software if you say
here, which has a severe performance impact. This is necessary for
correct operation of some network protocols. With an IP-only
configuration it is safe to say N, otherwise say Y.
21285 serial port support
CONFIG_SERIAL_21285
If you have a machine based on a 21285 (Footbridge) StrongARM/PCI
bridge you can enable its onboard serial port by enabling this
option. The device has major ID 4, minor 64.
Console on 21285 serial port
CONFIG_SERIAL_21285_CONSOLE
If you have enabled the serial port on the 21285 footbridge you can
make it the console by answering Y to this option.
Footbridge Mode
CONFIG_HOST_FOOTBRIDGE
The 21285 Footbridge chip can operate in either `host mode' or
`add-in' mode. Say Y if your 21285 is in host mode, and therefore
is the configuration master, otherwise say N. This must not be
set to Y if the card is used in 'add-in' mode.
MFM hard disk support
CONFIG_BLK_DEV_MFM
Support the MFM hard drives on the Acorn Archimedes both
on-board the A4x0 motherboards and via the Acorn MFM modules.
Drives up to 64MB are supported. If you haven't got one of these
machines or drives just say N.
Old Archimedes floppy (1772) support
CONFIG_BLK_DEV_FD1772
Support the floppy drive on the Acorn Archimedes (A300, A4x0, A540,
R140 and R260) series of computers; it supports only 720K floppies
at the moment. If you don't have one of these machines just answer
N.
Autodetect hard drive geometry
CONFIG_BLK_DEV_MFM_AUTODETECT
If you answer Y, the MFM code will attempt to automatically detect
the cylinders/heads/sectors count on your hard drive. WARNING: This
sometimes doesn't work and it also does some dodgy stuff which
potentially might damage your drive.
IrDA Protocols
CONFIG_IRDA
Say Y here if you want to build support for the IrDA (TM) protocols.
The Infrared Data Associations (tm) specifies standards for wireless
infrared communication and is supported by most laptops and PDA's.
To use Linux support for the IrDA (tm) protocols, you will also need
some user-space utilities like the irmanager and probably irattach
as well. For more information, see the file
Documentation/networking/irda.txt. You also want to read the
IR-HOWTO, available at http://www.linuxdoc.org/docs.html#howto .
This support is also available as a module. If you want to compile
it as a module, say M here and read Documentation/modules.txt.
IrDA Cache last LSAP
CONFIG_IRDA_CACHE_LAST_LSAP
Say Y here if you want IrLMP to cache the last LSAP used. This makes
sense since most frames will be sent/received on the same
connection. Enabling this option will save a hash-lookup per frame.
If unsure, say Y.
IrDA Fast RR's
CONFIG_IRDA_FAST_RR
Say Y here is you want IrLAP to send fast RR (Receive Ready) frames
when acting as a primary station. This will make IrLAP send out a RR
frame immediately when receiving a frame if its own transmit queue
is currently empty. This will give a lot of speed improvement when
receiving much data since the secondary station will not have to
wait the max. turn around time before it is allowed to transmit the
next time. If the transmit queue of the secondary is also empty the
primary will back off waiting longer for sending out the RR frame
until the timeout reaches the normal value. Enabling this option
will make the IR-diode burn more power and thus reduce your battery
life.
If unsure, say N.
IrDA Debug
CONFIG_IRDA_DEBUG
Say Y here if you want the IrDA subsystem to write debug information
to your syslog. You can change the debug level in
/proc/sys/net/irda/debug
If unsure, say Y (since it makes it easier to find the bugs).
IrLAP Compression support
CONFIG_IRDA_COMPRESSION
Compression is _not_ part of the IrDA(tm) protocol specification,
but it's working great! Linux is the first to try out compression
support at the IrLAP layer. This means that you will only benefit
from compression if you are running a Linux <-> Linux configuration.
If you say Y here, you also need to say Y or M to a compression
protocol below.
IrLAP Deflate Compression Protocol (EXPERIMENTAL)
CONFIG_IRDA_DEFLATE
Say Y here if you want to build support for the Deflate compression
protocol. The deflate compression (GZIP) is exactly
the same as the one used by the PPP protocol.
If you want to compile this compression support as a module, say M
here and read Documentation/modules.txt. The module will be called
irda_deflate.o.
IrLAN Protocol
CONFIG_IRLAN
Say Y here if you want to build support for the IrLAN protocol. If
you want to compile it as a module, say M here and read
Documentation/modules.txt. IrLAN emulates an Ethernet and makes it
possible to put up a wireless LAN using infrared beams.
The IrLAN protocol can be used to talk with infrared access points
like the HP NetbeamIR, or the ESI JetEye NET. You can also connect
to another Linux machine running the IrLAN protocol for ad-hoc
networking!
IrCOMM Protocol
CONFIG_IRCOMM
Say Y here if you want to build support for the IrCOMM protocol. If
you want to compile it as a module, say M here and read
Documentation/modules.txt. IrCOMM implements serial port emulation,
and makes it possible to use all existing applications that
understands TTY's with an infrared link. Thus you should be able to
use application like PPP, minicom and others. Enabling this option
will create two modules called ircomm and ircomm-tty.
IrTTY IrDA Device Driver
CONFIG_IRTTY_SIR
Say Y here if you want to build support for the IrTTY line
discipline. If you want to compile it as a module, say M here and
read Documentation/modules.txt. IrTTY makes it possible to use
Linux's own serial driver for all IrDA ports that are 16550
compatible. Most IrDA chips are 16550 compatible so you should
probably say Y to this option. Using IrTTY will however limit the
speed of the connection to 115200 bps (IrDA SIR mode)
If unsure, say Y.
IrPORT IrDA Device Driver
CONFIG_IRPORT_SIR
Say Y here if you want to build support for the IrPORT IrDA device
driver. If you want to compile it as a module, say M here and
read Documentation/modules.txt. IrPORT can be used instead of
IrTTY and sometimes this can be better. One example is if your
IrDA port does not have echo-canceling, which will work OK with
IrPORT since this driver is working in half-duplex mode only. You
don't need to use irattach with IrPORT, but you just insert it
the same way as FIR drivers (insmod irport io=0x3e8 irq=11).
Notice that IrPORT is a SIR device driver which means that speed
is limited to 115200 bps.
If unsure, say Y.
SiS5513 chipset support
CONFIG_BLK_DEV_SIS5513
This driver ensures (U)DMA support for SIS5513 chipset based
mainboards. SiS620/530 UDMA mode 4, SiS5600/5597 UDMA mode 2, all
other DMA mode 2 limited chipsets are unsupported to date.
If you say Y here, you need to say Y to "Use DMA by default when
available" as well.
Please read the comments at the top of drivers/block/sis5513.c
Winbond W83977AF IrDA Device Driver
CONFIG_WINBOND_FIR
Say Y here if you want to build IrDA support for the Winbond
W83977AF super-io chipset. If you want to compile it as a module,
say M here and read Documentation/modules.txt. This driver should be
used for the IrDA chipset in the Corel NetWinder. The driver
supports SIR, MIR and FIR (4Mbps) speeds.
NSC PC87108 IrDA Device Driver
CONFIG_NSC_FIR
Say Y here if you want to build support for the NSC PC87108 and
PC87338 IrDA chipsets. If you want to compile it as a module, say M
here and read Documentation/modules.txt. This driver supports SIR,
MIR and FIR (4Mbps) speeds.
Toshiba Type-O IR Port Device Driver
CONFIG_TOSHIBA_FIR
Say Y here if you want to build support for the Toshiba Type-O IR
chipset. If you want to compile it as a module, say M here and
read Documentation/modules.txt. This chipset is used by the Toshiba
Libretto 100CT, and many more laptops.
ESI JetEye PC Dongle
CONFIG_ESI_DONGLE
Say Y here if you want to build support for the Extended Systems
JetEye PC dongle. If you want to compile it as a module, say M here
and read Documentation/modules.txt. The ESI dongle attaches to the
normal 9-pin serial port connector, and can currently only be used
by IrTTY. To activate support for ESI dongles you will have to
start irattach like this: "irattach -d esi".
ACTiSYS IR-220L and IR220L+ dongle
CONFIG_ACTISYS_DONGLE
Say Y here if you want to build support for the ACTiSYS
IR-220L and IR220L+ dongles. If you want to compile it as a module,
say M here and read Documentation/modules.txt. The ACTiSYS dongles
attaches to the normal 9-pin serial port connector, and can
currently only be used by IrTTY. To activate support for ACTiSYS
dongles you will have to start irattach like this:
"irattach -d actisys" or "irattach -d actisys+".
Tekram IrMate 210B dongle
CONFIG_TEKRAM_DONGLE
Say Y here if you want to build support for the Tekram IrMate 210B
dongle. If you want to compile it as a module, say M here
and read Documentation/modules.txt. The Tekram dongle attaches to
the normal 9-pin serial port connector, and can currently only be
used by IrTTY. To activate support for Tekram dongles you will have
to start irattach like this: "irattach -d tekram".
Greenwich GIrBIL dongle
CONFIG_GIRBIL_DONGLE
Say Y here if you want to build support for the Greenwich GIrBIL
dongle. If you want to compile it as a module, say M here and read
Documentation/modules.txt. The Greenwich dongle attaches to the
normal 9-pin serial port connector, and can currently only be used
by IrTTY. To activate support for Greenwich dongles you will have to
insert "irattach -d girbil" in the /etc/irda/drivers script.
Parallax Litelink dongle
CONFIG_LITELINK_DONGLE
Say Y here if you want to build support for the Parallax Litelink
dongle. If you want to compile it as a module, say M here and read
Documentation/modules.txt. The Parallax dongle attaches to the
normal 9-pin serial port connector, and can currently only be used
by IrTTY. To activate support for Parallax dongles you will have to
start irattach like this "irattach -d litelink".
VME (Motorola and BVM) support
CONFIG_VME
Say Y here if you want to build a kernel for a 680x0 based VME
board. Boards currently supported include Motorola boards MVME162,
MVME166, MVME167, MVME172, and MVME177. BVME4000 and BVME6000
boards from BVM Ltd are also supported.
MVME162, 166 and 167 support
CONFIG_MVME16x
Say Y to include support for Motorola VME boards. This will build a
kernel which can run on MVME162, MVME166, MVME167, MVME172, and
MVME177 boards. If you select this option you will have to select
the appropriate drivers for SCSI, Ethernet and serial ports later
on.
BVME4000 and BVME6000 support
CONFIG_BVME6000
Say Y to include support for VME boards from BVM Ltd. This will
build a kernel which can run on BVME4000 and BVME6000 boards. If
you select this option you will have to select the appropriate
drivers for SCSI, Ethernet and serial ports later on.
Use write-through caching for 68060 supervisor accesses
CONFIG_060_WRITETHROUGH
The 68060 generally uses copyback caching of recently accessed data.
Copyback caching means that memory writes will be held in an on-chip
cache and only written back to memory some time later. Saying Y
here will force supervisor (kernel) accesses to use writethrough
caching. Writethrough caching means that data is written to memory
straight away, so that cache and memory data always agree.
Writethrough caching is less efficient, but is needed for some
drivers on 68060 based systems where the 68060 bus snooping signal
is hardwired on. The 53c710 SCSI driver is known to suffer from
this problem.
NCR53C710 SCSI driver for MVME16x
CONFIG_MVME16x_SCSI
The Motorola MVME162, 166, 167, 172 and 177 boards use the NCR53C710
SCSI controller chip. Almost everyone using one of these boards
will want to say Y to this question.
NCR53C710 SCSI driver for BVME6000
CONFIG_BVME6000_SCSI
The BVME4000 and BVME6000 boards from BVM Ltd use the NCR53C710
SCSI controller chip. Almost everyone using one of these boards
will want to say Y to this question.
Simple 53c710 SCSI support (Compaq, NCR machines)
CONFIG_SCSI_SIM710
This is a driver for the NCR53C710 chip commonly found in Compaq and
NCR machines. If you are looking for 53C710 support for an Amiga or
some 680x0 based VME card then you probably want the other NCR53C710
driver.
MVME16x Ethernet support
CONFIG_MVME16x_NET
This is the driver for the Ethernet interface on the Motorola
MVME162, 166, 167, 172 and 177 boards. Say Y here to include the
driver for this chip in your kernel. If you want to compile it as
a module, say M here and read Documentation/modules.txt.
BVME6000 Ethernet support
CONFIG_BVME6000_NET
This is the driver for the Ethernet interface on BVME4000 and
BVME6000 VME boards. Say Y here to include the driver for this chip
in your kernel. If you want to compile it as a module, say M here
and read Documentation/modules.txt.
CD2401 support for MVME166/7 serial ports
CONFIG_SERIAL167
This is the driver for the serial ports on the Motorola MVME166,
167, and 172 boards. Everyone using one of these boards should say
Y here.
SCC support for MVME162 serial ports
CONFIG_MVME162_SCC
This is the driver for the serial ports on the Motorola MVME162 and
172 boards. Everyone using one of these boards should say Y here.
SCC support for BVME6000 serial ports
CONFIG_BVME6000_SCC
This is the driver for the serial ports on the BVME4000 and BVME6000
boards from BVM Ltd. Everyone using one of these boards should say
Y here.
Support for user-space parallel port device drivers
CONFIG_PPDEV
Saying Y to this adds support for /dev/parport device nodes. This
is needed for programs that want portable access to the parallel
port, for instance deviceid (which displays Plug-and-Play device
IDs).
This is the parallel port equivalent of SCSI generic support (sg).
It is safe to say N to this -- it is not needed for normal printing
or parallel port CD-ROM/disk support.
This support is also available as a module. If you want to compile
it as a module, say M here and read Documentation/modules.txt. The
module will be called ppdev.o.
If unsure, say N.
Kernel httpd acceleration (EXPERIMENTAL)
CONFIG_KHTTPD
The kernel httpd acceleration daemon (kHTTPd) is a (limited)
web server build into the kernel. It is limited since it can only
serve files from the file system. Saying "M" here builds the
kHTTPd module; this is NOT enough to have a working kHTTPd.
For safety reasons, the module has to be activated by doing a
"echo 1 > /proc/sys/net/khttpd/start" after inserting the module.
Before using this, read the README in /usr/src/linux/net/khttpd !
The kHTTPd is experimental. Be careful when using it on a production
machine. Also note that kHTTPd doesn't support virtual servers yet.
I2C support
CONFIG_I2C
I2C (pronounce: I-square-C) is a slow bus protocol developed by
Philips. SMBus, or System Management Bus is a sub-protocol of I2C.
Both I2C and SMBus are supported here. You will need this for
hardware sensors support, and in the future for Video for Linux
support.
Beside this option, you will also need to select specific drivers
for your bus adapter(s).
I2C bit-banging interfaces
CONFIG_I2C_ALGOBIT
This allows you to use a range of I2C adapters called bit-banging
adapters. Why they are called so is rather technical and uninteresting;
but you need to select this if you own one of the adapters listed
under it.
Philips style parallel port adapter
CONFIG_I2C_PHILIPSPAR
This supports parallel-port I2C adapters made by Philips. Unless you
own such an adapter, you do not need to select this.
ELV adapter
CONFIG_I2C_ELV
This supports parallel-port I2C adapters called ELV. Unless you
own such an adapter, you do not need to select this.
Velleman K9000 adapter
CONFIG_I2C_VELLEMAN
This supports the Velleman K9000 parallel-port I2C adapter. Unless
you own such an adapter, you do not need to select this.
I2C PCF 8584 interfaces
CONFIG_I2C_ALGOPCF
This allows you to use a range of I2C adapters called PCF
adapters. Why they are called so is rather technical and uninteresting;
but you need to select this if you own one of the adapters listed
under it.
Elektor ISA card
CONFIG_I2C_ELEKTOR
This supports the PCF8584 ISA bus I2C adapter. Unless you own such
an adapter, you do not need to select this.
I2C device interface
CONFIG_I2C_CHARDEV
Here you find the drivers which allow you to use the i2c-* device
files, usually found in the /dev directory on your system. They
make it possible to have user-space programs use the I2C bus.
#
# A couple of things I keep forgetting:
# capitalize: AppleTalk, Ethernet, DOS, DMA, FAT, FTP, Internet,
# Intel, IRQ, Linux, MSDOS, NetWare, NetWinder, NFS,
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#
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