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>
8
9/*
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.
13 */
14
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
27#define RTC_MINOR 135
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 */
35#define I2O_MINOR 166
36#define HWRNG_MINOR 183
37#define MICROCODE_MINOR 184
38#define IRNET_MINOR 187
39#define D7S_MINOR 193
40#define VFIO_MINOR 196
41#define TUN_MINOR 200
42#define CUSE_MINOR 203
43#define MWAVE_MINOR 219 /* ACP/Mwave Modem */
44#define MPT_MINOR 220
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
51#define KVM_MINOR 232
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
61
62struct device;
63struct attribute_group;
64
65struct miscdevice {
66 int minor;
67 const char *name;
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;
73 const char *nodename;
74 umode_t mode;
75};
76
77extern int misc_register(struct miscdevice *misc);
78extern void misc_deregister(struct miscdevice *misc);
79
80/*
81 * Helper macro for drivers that don't do anything special in the initcall.
82 * This helps in eleminating of boilerplate code.
83 */
84#define builtin_misc_device(__misc_device) \
85 builtin_driver(__misc_device, misc_register)
86
87/*
88 * Helper macro for drivers that don't do anything special in module init / exit
89 * call. This helps in eleminating of boilerplate code.
90 */
91#define module_misc_device(__misc_device) \
92 module_driver(__misc_device, misc_register, misc_deregister)
93
94#define MODULE_ALIAS_MISCDEV(minor) \
95 MODULE_ALIAS("char-major-" __stringify(MISC_MAJOR) \
96 "-" __stringify(minor))
97#endif
98