xref: /linux-6.15/include/linux/miscdevice.h (revision df92b408)
1 #ifndef _LINUX_MISCDEVICE_H
2 #define _LINUX_MISCDEVICE_H
3 #include <linux/module.h>
4 #include <linux/major.h>
5 
6 /*
7  *	These allocations are managed by [email protected]. If you use an
8  *	entry that is not in assigned your entry may well be moved and
9  *	reassigned, or set dynamic if a fixed value is not justified.
10  */
11 
12 #define PSMOUSE_MINOR		1
13 #define MS_BUSMOUSE_MINOR	2
14 #define ATIXL_BUSMOUSE_MINOR	3
15 /*#define AMIGAMOUSE_MINOR	4	FIXME OBSOLETE */
16 #define ATARIMOUSE_MINOR	5
17 #define SUN_MOUSE_MINOR		6
18 #define APOLLO_MOUSE_MINOR	7
19 #define PC110PAD_MINOR		9
20 /*#define ADB_MOUSE_MINOR	10	FIXME OBSOLETE */
21 #define WATCHDOG_MINOR		130	/* Watchdog timer     */
22 #define TEMP_MINOR		131	/* Temperature Sensor */
23 #define RTC_MINOR		135
24 #define EFI_RTC_MINOR		136	/* EFI Time services */
25 #define SUN_OPENPROM_MINOR	139
26 #define DMAPI_MINOR		140	/* DMAPI */
27 #define NVRAM_MINOR		144
28 #define SGI_MMTIMER		153
29 #define STORE_QUEUE_MINOR	155
30 #define I2O_MINOR		166
31 #define MICROCODE_MINOR		184
32 #define TUN_MINOR		200
33 #define MWAVE_MINOR		219	/* ACP/Mwave Modem */
34 #define MPT_MINOR		220
35 #define MPT2SAS_MINOR		221
36 #define HPET_MINOR		228
37 #define FUSE_MINOR		229
38 #define KVM_MINOR		232
39 #define BTRFS_MINOR		234
40 #define AUTOFS_MINOR		235
41 #define MISC_DYNAMIC_MINOR	255
42 
43 struct device;
44 
45 struct miscdevice  {
46 	int minor;
47 	const char *name;
48 	const struct file_operations *fops;
49 	struct list_head list;
50 	struct device *parent;
51 	struct device *this_device;
52 	const char *nodename;
53 	mode_t mode;
54 };
55 
56 extern int misc_register(struct miscdevice * misc);
57 extern int misc_deregister(struct miscdevice *misc);
58 
59 #define MODULE_ALIAS_MISCDEV(minor)				\
60 	MODULE_ALIAS("char-major-" __stringify(MISC_MAJOR)	\
61 	"-" __stringify(minor))
62 #endif
63