Free Electrons

Embedded Linux Experts

  1
  2
  3
  4
  5
  6
  7
  8
  9
 10
 11
 12
 13
 14
 15
 16
 17
 18
 19
 20
 21
 22
 23
 24
 25
 26
 27
 28
 29
 30
 31
 32
 33
 34
 35
 36
 37
 38
 39
 40
 41
 42
 43
 44
 45
 46
 47
 48
 49
 50
 51
 52
 53
 54
 55
 56
 57
 58
 59
 60
 61
 62
 63
 64
 65
 66
 67
 68
 69
 70
 71
 72
 73
 74
 75
 76
 77
 78
 79
 80
 81
 82
 83
 84
 85
 86
 87
 88
 89
 90
 91
 92
 93
 94
 95
 96
 97
 98
 99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522
523
524
525
526
527
528
529
530
531
532
533
534
535
536
537
538
539
540
541
542
543
544
545
546
547
548
549
550
551
552
553
554
555
556
557
558
559
560
561
562
563
564
565
566
567
568
569
570
571
572
573
574
575
576
577
578
579
580
581
582
/*
 * USB HandSpring Visor, Palm m50x, and Sony Clie driver
 * (supports all of the Palm OS USB devices)
 *
 *	Copyright (C) 1999 - 2004
 *	    Greg Kroah-Hartman (greg@kroah.com)
 *
 *	This program is free software; you can redistribute it and/or
 *	modify it under the terms of the GNU General Public License version
 *	2 as published by the Free Software Foundation.
 *
 * See Documentation/usb/usb-serial.txt for more information on using this
 * driver
 *
 */

#include <linux/kernel.h>
#include <linux/errno.h>
#include <linux/slab.h>
#include <linux/tty.h>
#include <linux/tty_driver.h>
#include <linux/tty_flip.h>
#include <linux/module.h>
#include <linux/moduleparam.h>
#include <linux/spinlock.h>
#include <linux/uaccess.h>
#include <linux/usb.h>
#include <linux/usb/serial.h>
#include <linux/usb/cdc.h>
#include "visor.h"

/*
 * Version Information
 */
#define DRIVER_AUTHOR "Greg Kroah-Hartman <greg@kroah.com>"
#define DRIVER_DESC "USB HandSpring Visor / Palm OS driver"

/* function prototypes for a handspring visor */
static int  visor_open(struct tty_struct *tty, struct usb_serial_port *port);
static void visor_close(struct usb_serial_port *port);
static int  visor_probe(struct usb_serial *serial,
					const struct usb_device_id *id);
static int  visor_calc_num_ports(struct usb_serial *serial,
					struct usb_serial_endpoints *epds);
static int  clie_5_calc_num_ports(struct usb_serial *serial,
					struct usb_serial_endpoints *epds);
static void visor_read_int_callback(struct urb *urb);
static int  clie_3_5_startup(struct usb_serial *serial);
static int palm_os_3_probe(struct usb_serial *serial,
					const struct usb_device_id *id);
static int palm_os_4_probe(struct usb_serial *serial,
					const struct usb_device_id *id);

static const struct usb_device_id id_table[] = {
	{ USB_DEVICE(HANDSPRING_VENDOR_ID, HANDSPRING_VISOR_ID),
		.driver_info = (kernel_ulong_t)&palm_os_3_probe },
	{ USB_DEVICE(HANDSPRING_VENDOR_ID, HANDSPRING_TREO_ID),
		.driver_info = (kernel_ulong_t)&palm_os_4_probe },
	{ USB_DEVICE(HANDSPRING_VENDOR_ID, HANDSPRING_TREO600_ID),
		.driver_info = (kernel_ulong_t)&palm_os_4_probe },
	{ USB_DEVICE(GSPDA_VENDOR_ID, GSPDA_XPLORE_M68_ID),
		.driver_info = (kernel_ulong_t)&palm_os_4_probe },
	{ USB_DEVICE(PALM_VENDOR_ID, PALM_M500_ID),
		.driver_info = (kernel_ulong_t)&palm_os_4_probe },
	{ USB_DEVICE(PALM_VENDOR_ID, PALM_M505_ID),
		.driver_info = (kernel_ulong_t)&palm_os_4_probe },
	{ USB_DEVICE(PALM_VENDOR_ID, PALM_M515_ID),
		.driver_info = (kernel_ulong_t)&palm_os_4_probe },
	{ USB_DEVICE(PALM_VENDOR_ID, PALM_I705_ID),
		.driver_info = (kernel_ulong_t)&palm_os_4_probe },
	{ USB_DEVICE(PALM_VENDOR_ID, PALM_M100_ID),
		.driver_info = (kernel_ulong_t)&palm_os_4_probe },
	{ USB_DEVICE(PALM_VENDOR_ID, PALM_M125_ID),
		.driver_info = (kernel_ulong_t)&palm_os_4_probe },
	{ USB_DEVICE(PALM_VENDOR_ID, PALM_M130_ID),
		.driver_info = (kernel_ulong_t)&palm_os_4_probe },
	{ USB_DEVICE(PALM_VENDOR_ID, PALM_TUNGSTEN_T_ID),
		.driver_info = (kernel_ulong_t)&palm_os_4_probe },
	{ USB_DEVICE(PALM_VENDOR_ID, PALM_TREO_650),
		.driver_info = (kernel_ulong_t)&palm_os_4_probe },
	{ USB_DEVICE(PALM_VENDOR_ID, PALM_TUNGSTEN_Z_ID),
		.driver_info = (kernel_ulong_t)&palm_os_4_probe },
	{ USB_DEVICE(PALM_VENDOR_ID, PALM_ZIRE_ID),
		.driver_info = (kernel_ulong_t)&palm_os_4_probe },
	{ USB_DEVICE(SONY_VENDOR_ID, SONY_CLIE_4_0_ID),
		.driver_info = (kernel_ulong_t)&palm_os_4_probe },
	{ USB_DEVICE(SONY_VENDOR_ID, SONY_CLIE_S360_ID),
		.driver_info = (kernel_ulong_t)&palm_os_4_probe },
	{ USB_DEVICE(SONY_VENDOR_ID, SONY_CLIE_4_1_ID),
		.driver_info = (kernel_ulong_t)&palm_os_4_probe },
	{ USB_DEVICE(SONY_VENDOR_ID, SONY_CLIE_NX60_ID),
		.driver_info = (kernel_ulong_t)&palm_os_4_probe },
	{ USB_DEVICE(SONY_VENDOR_ID, SONY_CLIE_NZ90V_ID),
		.driver_info = (kernel_ulong_t)&palm_os_4_probe },
	{ USB_DEVICE(SONY_VENDOR_ID, SONY_CLIE_TJ25_ID),
		.driver_info = (kernel_ulong_t)&palm_os_4_probe },
	{ USB_DEVICE(ACER_VENDOR_ID, ACER_S10_ID),
		.driver_info = (kernel_ulong_t)&palm_os_4_probe },
	{ USB_DEVICE_INTERFACE_CLASS(SAMSUNG_VENDOR_ID, SAMSUNG_SCH_I330_ID, 0xff),
		.driver_info = (kernel_ulong_t)&palm_os_4_probe },
	{ USB_DEVICE(SAMSUNG_VENDOR_ID, SAMSUNG_SPH_I500_ID),
		.driver_info = (kernel_ulong_t)&palm_os_4_probe },
	{ USB_DEVICE(TAPWAVE_VENDOR_ID, TAPWAVE_ZODIAC_ID),
		.driver_info = (kernel_ulong_t)&palm_os_4_probe },
	{ USB_DEVICE(GARMIN_VENDOR_ID, GARMIN_IQUE_3600_ID),
		.driver_info = (kernel_ulong_t)&palm_os_4_probe },
	{ USB_DEVICE(ACEECA_VENDOR_ID, ACEECA_MEZ1000_ID),
		.driver_info = (kernel_ulong_t)&palm_os_4_probe },
	{ USB_DEVICE(KYOCERA_VENDOR_ID, KYOCERA_7135_ID),
		.driver_info = (kernel_ulong_t)&palm_os_4_probe },
	{ USB_DEVICE(FOSSIL_VENDOR_ID, FOSSIL_ABACUS_ID),
		.driver_info = (kernel_ulong_t)&palm_os_4_probe },
	{ }					/* Terminating entry */
};

static const struct usb_device_id clie_id_5_table[] = {
	{ USB_DEVICE(SONY_VENDOR_ID, SONY_CLIE_UX50_ID),
		.driver_info = (kernel_ulong_t)&palm_os_4_probe },
	{ }					/* Terminating entry */
};

static const struct usb_device_id clie_id_3_5_table[] = {
	{ USB_DEVICE(SONY_VENDOR_ID, SONY_CLIE_3_5_ID) },
	{ }					/* Terminating entry */
};

static const struct usb_device_id id_table_combined[] = {
	{ USB_DEVICE(HANDSPRING_VENDOR_ID, HANDSPRING_VISOR_ID) },
	{ USB_DEVICE(HANDSPRING_VENDOR_ID, HANDSPRING_TREO_ID) },
	{ USB_DEVICE(HANDSPRING_VENDOR_ID, HANDSPRING_TREO600_ID) },
	{ USB_DEVICE(GSPDA_VENDOR_ID, GSPDA_XPLORE_M68_ID) },
	{ USB_DEVICE(PALM_VENDOR_ID, PALM_M500_ID) },
	{ USB_DEVICE(PALM_VENDOR_ID, PALM_M505_ID) },
	{ USB_DEVICE(PALM_VENDOR_ID, PALM_M515_ID) },
	{ USB_DEVICE(PALM_VENDOR_ID, PALM_I705_ID) },
	{ USB_DEVICE(PALM_VENDOR_ID, PALM_M100_ID) },
	{ USB_DEVICE(PALM_VENDOR_ID, PALM_M125_ID) },
	{ USB_DEVICE(PALM_VENDOR_ID, PALM_M130_ID) },
	{ USB_DEVICE(PALM_VENDOR_ID, PALM_TUNGSTEN_T_ID) },
	{ USB_DEVICE(PALM_VENDOR_ID, PALM_TREO_650) },
	{ USB_DEVICE(PALM_VENDOR_ID, PALM_TUNGSTEN_Z_ID) },
	{ USB_DEVICE(PALM_VENDOR_ID, PALM_ZIRE_ID) },
	{ USB_DEVICE(SONY_VENDOR_ID, SONY_CLIE_3_5_ID) },
	{ USB_DEVICE(SONY_VENDOR_ID, SONY_CLIE_4_0_ID) },
	{ USB_DEVICE(SONY_VENDOR_ID, SONY_CLIE_S360_ID) },
	{ USB_DEVICE(SONY_VENDOR_ID, SONY_CLIE_4_1_ID) },
	{ USB_DEVICE(SONY_VENDOR_ID, SONY_CLIE_NX60_ID) },
	{ USB_DEVICE(SONY_VENDOR_ID, SONY_CLIE_NZ90V_ID) },
	{ USB_DEVICE(SONY_VENDOR_ID, SONY_CLIE_UX50_ID) },
	{ USB_DEVICE(SONY_VENDOR_ID, SONY_CLIE_TJ25_ID) },
	{ USB_DEVICE(SAMSUNG_VENDOR_ID, SAMSUNG_SCH_I330_ID) },
	{ USB_DEVICE(SAMSUNG_VENDOR_ID, SAMSUNG_SPH_I500_ID) },
	{ USB_DEVICE(TAPWAVE_VENDOR_ID, TAPWAVE_ZODIAC_ID) },
	{ USB_DEVICE(GARMIN_VENDOR_ID, GARMIN_IQUE_3600_ID) },
	{ USB_DEVICE(ACEECA_VENDOR_ID, ACEECA_MEZ1000_ID) },
	{ USB_DEVICE(KYOCERA_VENDOR_ID, KYOCERA_7135_ID) },
	{ USB_DEVICE(FOSSIL_VENDOR_ID, FOSSIL_ABACUS_ID) },
	{ }					/* Terminating entry */
};

MODULE_DEVICE_TABLE(usb, id_table_combined);

/* All of the device info needed for the Handspring Visor,
   and Palm 4.0 devices */
static struct usb_serial_driver handspring_device = {
	.driver = {
		.owner =	THIS_MODULE,
		.name =		"visor",
	},
	.description =		"Handspring Visor / Palm OS",
	.id_table =		id_table,
	.num_ports =		2,
	.bulk_out_size =	256,
	.open =			visor_open,
	.close =		visor_close,
	.throttle =		usb_serial_generic_throttle,
	.unthrottle =		usb_serial_generic_unthrottle,
	.probe =		visor_probe,
	.calc_num_ports =	visor_calc_num_ports,
	.read_int_callback =	visor_read_int_callback,
};

/* All of the device info needed for the Clie UX50, TH55 Palm 5.0 devices */
static struct usb_serial_driver clie_5_device = {
	.driver = {
		.owner =	THIS_MODULE,
		.name =		"clie_5",
	},
	.description =		"Sony Clie 5.0",
	.id_table =		clie_id_5_table,
	.num_ports =		2,
	.num_bulk_out =		2,
	.bulk_out_size =	256,
	.open =			visor_open,
	.close =		visor_close,
	.throttle =		usb_serial_generic_throttle,
	.unthrottle =		usb_serial_generic_unthrottle,
	.probe =		visor_probe,
	.calc_num_ports =	clie_5_calc_num_ports,
	.read_int_callback =	visor_read_int_callback,
};

/* device info for the Sony Clie OS version 3.5 */
static struct usb_serial_driver clie_3_5_device = {
	.driver = {
		.owner =	THIS_MODULE,
		.name =		"clie_3.5",
	},
	.description =		"Sony Clie 3.5",
	.id_table =		clie_id_3_5_table,
	.num_ports =		1,
	.bulk_out_size =	256,
	.open =			visor_open,
	.close =		visor_close,
	.throttle =		usb_serial_generic_throttle,
	.unthrottle =		usb_serial_generic_unthrottle,
	.attach =		clie_3_5_startup,
};

static struct usb_serial_driver * const serial_drivers[] = {
	&handspring_device, &clie_5_device, &clie_3_5_device, NULL
};

/******************************************************************************
 * Handspring Visor specific driver functions
 ******************************************************************************/
static int visor_open(struct tty_struct *tty, struct usb_serial_port *port)
{
	int result = 0;

	if (!port->read_urb) {
		/* this is needed for some brain dead Sony devices */
		dev_err(&port->dev, "Device lied about number of ports, please use a lower one.\n");
		return -ENODEV;
	}

	/* Start reading from the device */
	result = usb_serial_generic_open(tty, port);
	if (result)
		goto exit;

	if (port->interrupt_in_urb) {
		dev_dbg(&port->dev, "adding interrupt input for treo\n");
		result = usb_submit_urb(port->interrupt_in_urb, GFP_KERNEL);
		if (result)
			dev_err(&port->dev,
			    "%s - failed submitting interrupt urb, error %d\n",
							__func__, result);
	}
exit:
	return result;
}


static void visor_close(struct usb_serial_port *port)
{
	unsigned char *transfer_buffer;

	usb_serial_generic_close(port);
	usb_kill_urb(port->interrupt_in_urb);

	transfer_buffer = kmalloc(0x12, GFP_KERNEL);
	if (!transfer_buffer)
		return;
	usb_control_msg(port->serial->dev,
					 usb_rcvctrlpipe(port->serial->dev, 0),
					 VISOR_CLOSE_NOTIFICATION, 0xc2,
					 0x0000, 0x0000,
					 transfer_buffer, 0x12, 300);
	kfree(transfer_buffer);
}

static void visor_read_int_callback(struct urb *urb)
{
	struct usb_serial_port *port = urb->context;
	int status = urb->status;
	int result;

	switch (status) {
	case 0:
		/* success */
		break;
	case -ECONNRESET:
	case -ENOENT:
	case -ESHUTDOWN:
		/* this urb is terminated, clean up */
		dev_dbg(&port->dev, "%s - urb shutting down with status: %d\n",
			__func__, status);
		return;
	default:
		dev_dbg(&port->dev, "%s - nonzero urb status received: %d\n",
			__func__, status);
		goto exit;
	}

	/*
	 * This information is still unknown what it can be used for.
	 * If anyone has an idea, please let the author know...
	 *
	 * Rumor has it this endpoint is used to notify when data
	 * is ready to be read from the bulk ones.
	 */
	usb_serial_debug_data(&port->dev, __func__, urb->actual_length,
			      urb->transfer_buffer);

exit:
	result = usb_submit_urb(urb, GFP_ATOMIC);
	if (result)
		dev_err(&urb->dev->dev,
				"%s - Error %d submitting interrupt urb\n",
							__func__, result);
}

static int palm_os_3_probe(struct usb_serial *serial,
						const struct usb_device_id *id)
{
	struct device *dev = &serial->dev->dev;
	struct visor_connection_info *connection_info;
	unsigned char *transfer_buffer;
	char *string;
	int retval = 0;
	int i;
	int num_ports = 0;

	transfer_buffer = kmalloc(sizeof(*connection_info), GFP_KERNEL);
	if (!transfer_buffer)
		return -ENOMEM;

	/* send a get connection info request */
	retval = usb_control_msg(serial->dev,
				  usb_rcvctrlpipe(serial->dev, 0),
				  VISOR_GET_CONNECTION_INFORMATION,
				  0xc2, 0x0000, 0x0000, transfer_buffer,
				  sizeof(*connection_info), 300);
	if (retval < 0) {
		dev_err(dev, "%s - error %d getting connection information\n",
			__func__, retval);
		goto exit;
	}

	if (retval == sizeof(*connection_info)) {
			connection_info = (struct visor_connection_info *)
							transfer_buffer;

		num_ports = le16_to_cpu(connection_info->num_ports);
		for (i = 0; i < num_ports; ++i) {
			switch (
			   connection_info->connections[i].port_function_id) {
			case VISOR_FUNCTION_GENERIC:
				string = "Generic";
				break;
			case VISOR_FUNCTION_DEBUGGER:
				string = "Debugger";
				break;
			case VISOR_FUNCTION_HOTSYNC:
				string = "HotSync";
				break;
			case VISOR_FUNCTION_CONSOLE:
				string = "Console";
				break;
			case VISOR_FUNCTION_REMOTE_FILE_SYS:
				string = "Remote File System";
				break;
			default:
				string = "unknown";
				break;
			}
			dev_info(dev, "%s: port %d, is for %s use\n",
				serial->type->description,
				connection_info->connections[i].port, string);
		}
	}
	/*
	* Handle devices that report invalid stuff here.
	*/
	if (num_ports == 0 || num_ports > 2) {
		dev_warn(dev, "%s: No valid connect info available\n",
			serial->type->description);
		num_ports = 2;
	}

	dev_info(dev, "%s: Number of ports: %d\n", serial->type->description,
		num_ports);

	/*
	 * save off our num_ports info so that we can use it in the
	 * calc_num_ports callback
	 */
	usb_set_serial_data(serial, (void *)(long)num_ports);

	/* ask for the number of bytes available, but ignore the
	   response as it is broken */
	retval = usb_control_msg(serial->dev,
				  usb_rcvctrlpipe(serial->dev, 0),
				  VISOR_REQUEST_BYTES_AVAILABLE,
				  0xc2, 0x0000, 0x0005, transfer_buffer,
				  0x02, 300);
	if (retval < 0)
		dev_err(dev, "%s - error %d getting bytes available request\n",
			__func__, retval);
	retval = 0;

exit:
	kfree(transfer_buffer);

	return retval;
}

static int palm_os_4_probe(struct usb_serial *serial,
						const struct usb_device_id *id)
{
	struct device *dev = &serial->dev->dev;
	struct palm_ext_connection_info *connection_info;
	unsigned char *transfer_buffer;
	int retval;

	transfer_buffer =  kmalloc(sizeof(*connection_info), GFP_KERNEL);
	if (!transfer_buffer)
		return -ENOMEM;

	retval = usb_control_msg(serial->dev,
				  usb_rcvctrlpipe(serial->dev, 0),
				  PALM_GET_EXT_CONNECTION_INFORMATION,
				  0xc2, 0x0000, 0x0000, transfer_buffer,
				  sizeof(*connection_info), 300);
	if (retval < 0)
		dev_err(dev, "%s - error %d getting connection info\n",
			__func__, retval);
	else
		usb_serial_debug_data(dev, __func__, retval, transfer_buffer);

	kfree(transfer_buffer);
	return 0;
}


static int visor_probe(struct usb_serial *serial,
					const struct usb_device_id *id)
{
	int retval = 0;
	int (*startup)(struct usb_serial *serial,
					const struct usb_device_id *id);

	/*
	 * some Samsung Android phones in modem mode have the same ID
	 * as SPH-I500, but they are ACM devices, so dont bind to them
	 */
	if (id->idVendor == SAMSUNG_VENDOR_ID &&
		id->idProduct == SAMSUNG_SPH_I500_ID &&
		serial->dev->descriptor.bDeviceClass == USB_CLASS_COMM &&
		serial->dev->descriptor.bDeviceSubClass ==
			USB_CDC_SUBCLASS_ACM)
		return -ENODEV;

	if (serial->dev->actconfig->desc.bConfigurationValue != 1) {
		dev_err(&serial->dev->dev, "active config #%d != 1 ??\n",
			serial->dev->actconfig->desc.bConfigurationValue);
		return -ENODEV;
	}

	if (id->driver_info) {
		startup = (void *)id->driver_info;
		retval = startup(serial, id);
	}

	return retval;
}

static int visor_calc_num_ports(struct usb_serial *serial,
					struct usb_serial_endpoints *epds)
{
	unsigned int vid = le16_to_cpu(serial->dev->descriptor.idVendor);
	int num_ports = (int)(long)(usb_get_serial_data(serial));

	if (num_ports)
		usb_set_serial_data(serial, NULL);

	/*
	 * Only swap the bulk endpoints for the Handspring devices with
	 * interrupt in endpoints, which for now are the Treo devices.
	 */
	if (!(vid == HANDSPRING_VENDOR_ID || vid == KYOCERA_VENDOR_ID) ||
			epds->num_interrupt_in == 0)
		goto out;

	if (epds->num_bulk_in < 2 || epds->num_interrupt_in < 2) {
		dev_err(&serial->interface->dev, "missing endpoints\n");
		return -ENODEV;
	}

	/*
	 * It appears that Treos and Kyoceras want to use the
	 * 1st bulk in endpoint to communicate with the 2nd bulk out endpoint,
	 * so let's swap the 1st and 2nd bulk in and interrupt endpoints.
	 * Note that swapping the bulk out endpoints would break lots of
	 * apps that want to communicate on the second port.
	 */
	swap(epds->bulk_in[0], epds->bulk_in[1]);
	swap(epds->interrupt_in[0], epds->interrupt_in[1]);
out:
	return num_ports;
}

static int clie_5_calc_num_ports(struct usb_serial *serial,
					struct usb_serial_endpoints *epds)
{
	/*
	 * TH55 registers 2 ports.
	 * Communication in from the UX50/TH55 uses the first bulk-in
	 * endpoint, while communication out to the UX50/TH55 uses the second
	 * bulk-out endpoint.
	 */

	/*
	 * FIXME: Should we swap the descriptors instead of using the same
	 *        bulk-out endpoint for both ports?
	 */
	epds->bulk_out[0] = epds->bulk_out[1];

	return serial->type->num_ports;
}

static int clie_3_5_startup(struct usb_serial *serial)
{
	struct device *dev = &serial->dev->dev;
	int result;
	u8 *data;

	data = kmalloc(1, GFP_KERNEL);
	if (!data)
		return -ENOMEM;

	/*
	 * Note that PEG-300 series devices expect the following two calls.
	 */

	/* get the config number */
	result = usb_control_msg(serial->dev, usb_rcvctrlpipe(serial->dev, 0),
				  USB_REQ_GET_CONFIGURATION, USB_DIR_IN,
				  0, 0, data, 1, 3000);
	if (result < 0) {
		dev_err(dev, "%s: get config number failed: %d\n",
							__func__, result);
		goto out;
	}
	if (result != 1) {
		dev_err(dev, "%s: get config number bad return length: %d\n",
							__func__, result);
		result = -EIO;
		goto out;
	}

	/* get the interface number */
	result = usb_control_msg(serial->dev, usb_rcvctrlpipe(serial->dev, 0),
				  USB_REQ_GET_INTERFACE,
				  USB_DIR_IN | USB_RECIP_INTERFACE,
				  0, 0, data, 1, 3000);
	if (result < 0) {
		dev_err(dev, "%s: get interface number failed: %d\n",
							__func__, result);
		goto out;
	}
	if (result != 1) {
		dev_err(dev,
			"%s: get interface number bad return length: %d\n",
							__func__, result);
		result = -EIO;
		goto out;
	}

	result = 0;
out:
	kfree(data);

	return result;
}

module_usb_serial_driver(serial_drivers, id_table_combined);

MODULE_AUTHOR(DRIVER_AUTHOR);
MODULE_DESCRIPTION(DRIVER_DESC);
MODULE_LICENSE("GPL");