Linux debugging
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#define major(x) (((x) >> 8) & 0xff) #define minor(x) ((x) & 0xff) #define makedev(x,y) (((x)<<8)|((y)&0xff)) //#define makedev(x,y) \ // ((x)*0x100000001ULL)&(0xfffffffffff0) // ((y)*0x1001 & 0xffff0ff)