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1 /* SPDX-License-Identifier: GPL-2.0 */
2 #ifndef _LINUX_MISCDEVICE_H
3 #define _LINUX_MISCDEVICE_H
4 #include <linux/major.h>
5 #include <linux/list.h>
6 #include <linux/types.h>
7 #include <linux/device.h>
10 * These allocations are managed by device@lanana.org. If you use an
11 * entry that is not in assigned your entry may well be moved and
12 * reassigned, or set dynamic if a fixed value is not justified.
15 #define PSMOUSE_MINOR 1
16 #define MS_BUSMOUSE_MINOR 2 /* unused */
17 #define ATIXL_BUSMOUSE_MINOR 3 /* unused */
18 /*#define AMIGAMOUSE_MINOR 4 FIXME OBSOLETE */
19 #define ATARIMOUSE_MINOR 5 /* unused */
20 #define SUN_MOUSE_MINOR 6 /* unused */
21 #define APOLLO_MOUSE_MINOR 7 /* unused */
22 #define PC110PAD_MINOR 9 /* unused */
23 /*#define ADB_MOUSE_MINOR 10 FIXME OBSOLETE */
24 #define WATCHDOG_MINOR 130 /* Watchdog timer */
25 #define TEMP_MINOR 131 /* Temperature Sensor */
26 #define APM_MINOR_DEV 134
28 #define EFI_RTC_MINOR 136 /* EFI Time services */
29 #define VHCI_MINOR 137
30 #define SUN_OPENPROM_MINOR 139
31 #define DMAPI_MINOR 140 /* unused */
32 #define NVRAM_MINOR 144
33 #define SGI_MMTIMER 153
34 #define STORE_QUEUE_MINOR 155 /* unused */
36 #define HWRNG_MINOR 183
37 #define MICROCODE_MINOR 184
38 #define IRNET_MINOR 187
40 #define VFIO_MINOR 196
42 #define CUSE_MINOR 203
43 #define MWAVE_MINOR 219 /* ACP/Mwave Modem */
45 #define MPT2SAS_MINOR 221
46 #define MPT3SAS_MINOR 222
47 #define UINPUT_MINOR 223
48 #define MISC_MCELOG_MINOR 227
49 #define HPET_MINOR 228
50 #define FUSE_MINOR 229
52 #define BTRFS_MINOR 234
53 #define AUTOFS_MINOR 235
54 #define MAPPER_CTRL_MINOR 236
55 #define LOOP_CTRL_MINOR 237
56 #define VHOST_NET_MINOR 238
57 #define UHID_MINOR 239
58 #define USERIO_MINOR 240
59 #define VHOST_VSOCK_MINOR 241
60 #define MISC_DYNAMIC_MINOR 255
63 struct attribute_group
;
68 const struct file_operations
*fops
;
69 struct list_head list
;
70 struct device
*parent
;
71 struct device
*this_device
;
72 const struct attribute_group
**groups
;
77 extern int misc_register(struct miscdevice
*misc
);
78 extern void misc_deregister(struct miscdevice
*misc
);
81 * Helper macro for drivers that don't do anything special in the initcall.
82 * This helps in eleminating of boilerplate code.
84 #define builtin_misc_device(__misc_device) \
85 builtin_driver(__misc_device, misc_register)
88 * Helper macro for drivers that don't do anything special in module init / exit
89 * call. This helps in eleminating of boilerplate code.
91 #define module_misc_device(__misc_device) \
92 module_driver(__misc_device, misc_register, misc_deregister)
94 #define MODULE_ALIAS_MISCDEV(minor) \
95 MODULE_ALIAS("char-major-" __stringify(MISC_MAJOR) \
96 "-" __stringify(minor))