1 #ifndef _LINUX_MAJOR_H
2 #define _LINUX_MAJOR_H
3
4 /*
5 * This file has definitions for major device numbers.
6 * For the device number assignments, see Documentation/devices.txt.
7 */
8
9 /* limits */
10
11 /*
12 * Important: Don't change this to 256. Major number 255 is and must be
13 * reserved for future expansion into a larger dev_t space.
14 */
15 #define MAX_CHRDEV 255
16 #define MAX_BLKDEV 255
17
18 #define UNNAMED_MAJOR 0
19 #define MEM_MAJOR 1
20 #define RAMDISK_MAJOR 1
21 #define FLOPPY_MAJOR 2
22 #define PTY_MASTER_MAJOR 2
23 #define IDE0_MAJOR 3
24 #define PTY_SLAVE_MAJOR 3
25 #define HD_MAJOR IDE0_MAJOR
26 #define TTY_MAJOR 4
27 #define TTYAUX_MAJOR 5
28 #define LP_MAJOR 6
29 #define VCS_MAJOR 7
30 #define LOOP_MAJOR 7
31 #define SCSI_DISK0_MAJOR 8
32 #define SCSI_TAPE_MAJOR 9
33 #define MD_MAJOR 9
34 #define MISC_MAJOR 10
35 #define SCSI_CDROM_MAJOR 11
36 #define QIC02_TAPE_MAJOR 12
37 #define XT_DISK_MAJOR 13
38 #define SOUND_MAJOR 14
39 #define CDU31A_CDROM_MAJOR 15
40 #define JOYSTICK_MAJOR 15
41 #define GOLDSTAR_CDROM_MAJOR 16
42 #define OPTICS_CDROM_MAJOR 17
43 #define SANYO_CDROM_MAJOR 18
44 #define CYCLADES_MAJOR 19
45 #define CYCLADESAUX_MAJOR 20
46 #define MITSUMI_X_CDROM_MAJOR 20
47 #define MFM_ACORN_MAJOR 21 /* ARM Linux /dev/mfm */
48 #define SCSI_GENERIC_MAJOR 21
49 #define Z8530_MAJOR 34
50 #define DIGI_MAJOR 23
51 #define IDE1_MAJOR 22
52 #define DIGICU_MAJOR 22
53 #define MITSUMI_CDROM_MAJOR 23
54 #define CDU535_CDROM_MAJOR 24
55 #define STL_SERIALMAJOR 24
56 #define MATSUSHITA_CDROM_MAJOR 25
57 #define STL_CALLOUTMAJOR 25
58 #define MATSUSHITA_CDROM2_MAJOR 26
59 #define QIC117_TAPE_MAJOR 27
60 #define MATSUSHITA_CDROM3_MAJOR 27
61 #define MATSUSHITA_CDROM4_MAJOR 28
62 #define STL_SIOMEMMAJOR 28
63 #define ACSI_MAJOR 28
64 #define AZTECH_CDROM_MAJOR 29
65 #define GRAPHDEV_MAJOR 29 /* SparcLinux & Linux/68k /dev/fb */
66 #define SHMIQ_MAJOR 85 /* Linux/mips, SGI /dev/shmiq */
67 #define CM206_CDROM_MAJOR 32
68 #define IDE2_MAJOR 33
69 #define IDE3_MAJOR 34
70 #define NETLINK_MAJOR 36
71 #define PS2ESDI_MAJOR 36
72 #define IDETAPE_MAJOR 37
73 #define Z2RAM_MAJOR 37
74 #define APBLOCK_MAJOR 38 /* AP1000 Block device */
75 #define DDV_MAJOR 39 /* AP1000 DDV block device */
76 #define NBD_MAJOR 43 /* Network block device */
77 #define RISCOM8_NORMAL_MAJOR 48
78 #define DAC960_MAJOR 48 /* 48..55 */
79 #define RISCOM8_CALLOUT_MAJOR 49
80 #define MKISS_MAJOR 55
81 #define DSP56K_MAJOR 55 /* DSP56001 processor device */
82
83 #define IDE4_MAJOR 56
84 #define IDE5_MAJOR 57
85
86 #define SCSI_DISK1_MAJOR 65
87 #define SCSI_DISK2_MAJOR 66
88 #define SCSI_DISK3_MAJOR 67
89 #define SCSI_DISK4_MAJOR 68
90 #define SCSI_DISK5_MAJOR 69
91 #define SCSI_DISK6_MAJOR 70
92 #define SCSI_DISK7_MAJOR 71
93
94
95 #define LVM_BLK_MAJOR 58 /* Logical Volume Manager */
96
97 #define COMPAQ_SMART2_MAJOR 72
98 #define COMPAQ_SMART2_MAJOR1 73
99 #define COMPAQ_SMART2_MAJOR2 74
100 #define COMPAQ_SMART2_MAJOR3 75
101 #define COMPAQ_SMART2_MAJOR4 76
102 #define COMPAQ_SMART2_MAJOR5 77
103 #define COMPAQ_SMART2_MAJOR6 78
104 #define COMPAQ_SMART2_MAJOR7 79
105
106 #define SPECIALIX_NORMAL_MAJOR 75
107 #define SPECIALIX_CALLOUT_MAJOR 76
108
109 #define DASD_MAJOR 94
110
111 #define LVM_CHAR_MAJOR 109 /* Logical Volume Manager */
112
113 #define MDISK_MAJOR 64
114
115 #define I2O_MAJOR 80 /* 80->87 */
116
117 #define IDE6_MAJOR 88
118 #define IDE7_MAJOR 89
119 #define IDE8_MAJOR 90
120 #define IDE9_MAJOR 91
121
122 #define AURORA_MAJOR 79
123
124 #define RTF_MAJOR 150
125 #define RAW_MAJOR 162
126
127 #define USB_ACM_MAJOR 166
128 #define USB_ACM_AUX_MAJOR 167
129 #define USB_CHAR_MAJOR 180
130
131 #define UNIX98_PTY_MASTER_MAJOR 128
132 #define UNIX98_PTY_MAJOR_COUNT 8
133 #define UNIX98_PTY_SLAVE_MAJOR (UNIX98_PTY_MASTER_MAJOR+UNIX98_PTY_MAJOR_COUNT)
134
135 /*
136 * Tests for SCSI devices.
137 */
138
139 #define SCSI_DISK_MAJOR(M) ((M) == SCSI_DISK0_MAJOR || \
140 ((M) >= SCSI_DISK1_MAJOR && (M) <= SCSI_DISK7_MAJOR))
141
142 #define SCSI_BLK_MAJOR(M) \
143 (SCSI_DISK_MAJOR(M) \
144 || (M) == SCSI_CDROM_MAJOR)
145
146 static __inline__ int scsi_blk_major(int m) {
147 return SCSI_BLK_MAJOR(m);
148 }
149
150 #endif
151
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