root/include/linux/major.h

/* */

INCLUDED FROM

DEFINITIONS

1. scsi_major

   1 #ifndef _LINUX_MAJOR_H
   2 #define _LINUX_MAJOR_H
   3 
   4 /*
   5  * This file has definitions for major device numbers
   6  */
   7 
   8 /* limits */
   9 
  10 #define MAX_CHRDEV 32
  11 #define MAX_BLKDEV 32
  12 
  13 /*
  14  * assignments
  15  *
  16  * devices are as follows (same as minix, so we can use the minix fs):
  17  *
  18  *      character              block                  comments
  19  *      --------------------   --------------------   --------------------
  20  *  0 - unnamed                unnamed                minor 0 = true nodev
  21  *  1 - /dev/mem               ramdisk
  22  *  2 -                        floppy
  23  *  3 -                        hd
  24  *  4 - /dev/tty*
  25  *  5 - /dev/tty; /dev/cua*
  26  *  6 - lp
  27  *  7 -                                               UNUSED
  28  *  8 -                        scsi disk
  29  *  9 - scsi tape
  30  * 10 - mice
  31  * 11 -                        scsi cdrom
  32  * 12 - qic02 tape
  33  * 13 -                        xt disk
  34  * 14 - sound card
  35  * 15 -                        cdu31a cdrom
  36  * 16 - sockets
  37  * 17 - af_unix
  38  * 18 - af_inet
  39  * 19 -                                               UNUSED
  40  * 20 -                                               UNUSED
  41  * 21 - scsi generic
  42  * 22 -                        (at2disk)
  43  * 23 -                        mitsumi cdrom
  44  * 24 -                        sony535 cdrom
  45  * 25 -
  46  * 26 -
  47  * 27 - qic117 tape
  48  */
  49 
  50 #define UNNAMED_MAJOR   0
  51 #define MEM_MAJOR       1
  52 #define FLOPPY_MAJOR    2
  53 #define HD_MAJOR        3
  54 #define TTY_MAJOR       4
  55 #define TTYAUX_MAJOR    5
  56 #define LP_MAJOR        6
  57 /* unused: 7 */
  58 #define SCSI_DISK_MAJOR 8
  59 #define SCSI_TAPE_MAJOR 9
  60 #define MOUSE_MAJOR     10
  61 #define SCSI_CDROM_MAJOR 11
  62 #define QIC02_TAPE_MAJOR 12
  63 #define XT_DISK_MAJOR   13
  64 #define SOUND_MAJOR     14
  65 #define CDU31A_CDROM_MAJOR 15
  66 #define SOCKET_MAJOR    16
  67 #define AF_UNIX_MAJOR   17
  68 #define AF_INET_MAJOR   18
  69 /* unused: 19, 20 */
  70 #define SCSI_GENERIC_MAJOR 21
  71 /* unused: 22 */
  72 #define MITSUMI_CDROM_MAJOR 23
  73 #define CDU535_CDROM_MAJOR 24
  74 #define QIC117_TAPE_MAJOR 27
  75 
  76 /*
  77  * Tests for SCSI devices.
  78  */
  79 
  80 #define SCSI_MAJOR(M) \
  81   ((M) == SCSI_DISK_MAJOR       \
  82    || (M) == SCSI_TAPE_MAJOR    \
  83    || (M) == SCSI_CDROM_MAJOR   \
  84    || (M) == SCSI_GENERIC_MAJOR)
  85 
  86 static inline int scsi_major(int m) {
     /*  */
  87         return SCSI_MAJOR(m);
  88 }
  89 
  90 #endif

/* */