Linux kernel mirror (for testing)
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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>
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 VFIO_MINOR 196
40#define TUN_MINOR 200
41#define CUSE_MINOR 203
42#define MWAVE_MINOR 219 /* ACP/Mwave Modem */
43#define MPT_MINOR 220
44#define MPT2SAS_MINOR 221
45#define MPT3SAS_MINOR 222
46#define UINPUT_MINOR 223
47#define MISC_MCELOG_MINOR 227
48#define HPET_MINOR 228
49#define FUSE_MINOR 229
50#define KVM_MINOR 232
51#define BTRFS_MINOR 234
52#define AUTOFS_MINOR 235
53#define MAPPER_CTRL_MINOR 236
54#define LOOP_CTRL_MINOR 237
55#define VHOST_NET_MINOR 238
56#define UHID_MINOR 239
57#define USERIO_MINOR 240
58#define VHOST_VSOCK_MINOR 241
59#define MISC_DYNAMIC_MINOR 255
60
61struct device;
62struct attribute_group;
63
64struct miscdevice {
65 int minor;
66 const char *name;
67 const struct file_operations *fops;
68 struct list_head list;
69 struct device *parent;
70 struct device *this_device;
71 const struct attribute_group **groups;
72 const char *nodename;
73 umode_t mode;
74};
75
76extern int misc_register(struct miscdevice *misc);
77extern void misc_deregister(struct miscdevice *misc);
78
79/*
80 * Helper macro for drivers that don't do anything special in the initcall.
81 * This helps in eleminating of boilerplate code.
82 */
83#define builtin_misc_device(__misc_device) \
84 builtin_driver(__misc_device, misc_register)
85
86/*
87 * Helper macro for drivers that don't do anything special in module init / exit
88 * call. This helps in eleminating of boilerplate code.
89 */
90#define module_misc_device(__misc_device) \
91 module_driver(__misc_device, misc_register, misc_deregister)
92
93#define MODULE_ALIAS_MISCDEV(minor) \
94 MODULE_ALIAS("char-major-" __stringify(MISC_MAJOR) \
95 "-" __stringify(minor))
96#endif