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 need |
11 | * an entry that is not assigned here, it can be moved and |
12 | * reassigned or dynamically set 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 was 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 SBUS_FLASH_MINOR 152 |
34 | #define SGI_MMTIMER 153 |
35 | #define PMU_MINOR 154 |
36 | #define STORE_QUEUE_MINOR 155 /* unused */ |
37 | #define LCD_MINOR 156 |
38 | #define AC_MINOR 157 |
39 | #define BUTTON_MINOR 158 /* Major 10, Minor 158, /dev/nwbutton */ |
40 | #define NWFLASH_MINOR 160 /* MAJOR is 10 - miscdevice */ |
41 | #define ENVCTRL_MINOR 162 |
42 | #define I2O_MINOR 166 |
43 | #define UCTRL_MINOR 174 |
44 | #define AGPGART_MINOR 175 |
45 | #define TOSH_MINOR_DEV 181 |
46 | #define HWRNG_MINOR 183 |
47 | /*#define MICROCODE_MINOR 184 unused */ |
48 | #define KEYPAD_MINOR 185 |
49 | #define IRNET_MINOR 187 |
50 | #define D7S_MINOR 193 |
51 | #define VFIO_MINOR 196 |
52 | #define PXA3XX_GCU_MINOR 197 |
53 | #define TUN_MINOR 200 |
54 | #define CUSE_MINOR 203 |
55 | #define MWAVE_MINOR 219 /* ACP/Mwave Modem */ |
56 | #define MPT_MINOR 220 |
57 | #define MPT2SAS_MINOR 221 |
58 | #define MPT3SAS_MINOR 222 |
59 | #define UINPUT_MINOR 223 |
60 | #define MISC_MCELOG_MINOR 227 |
61 | #define HPET_MINOR 228 |
62 | #define FUSE_MINOR 229 |
63 | #define SNAPSHOT_MINOR 231 |
64 | #define KVM_MINOR 232 |
65 | #define BTRFS_MINOR 234 |
66 | #define AUTOFS_MINOR 235 |
67 | #define MAPPER_CTRL_MINOR 236 |
68 | #define LOOP_CTRL_MINOR 237 |
69 | #define VHOST_NET_MINOR 238 |
70 | #define UHID_MINOR 239 |
71 | #define USERIO_MINOR 240 |
72 | #define VHOST_VSOCK_MINOR 241 |
73 | #define RFKILL_MINOR 242 |
74 | #define MISC_DYNAMIC_MINOR 255 |
75 | |
76 | struct device; |
77 | struct attribute_group; |
78 | |
79 | struct miscdevice { |
80 | int minor; |
81 | const char *name; |
82 | const struct file_operations *fops; |
83 | struct list_head list; |
84 | struct device *parent; |
85 | struct device *this_device; |
86 | const struct attribute_group **groups; |
87 | const char *nodename; |
88 | umode_t mode; |
89 | }; |
90 | |
91 | extern int misc_register(struct miscdevice *misc); |
92 | extern void misc_deregister(struct miscdevice *misc); |
93 | |
94 | /* |
95 | * Helper macro for drivers that don't do anything special in the initcall. |
96 | * This helps to eliminate boilerplate code. |
97 | */ |
98 | #define builtin_misc_device(__misc_device) \ |
99 | builtin_driver(__misc_device, misc_register) |
100 | |
101 | /* |
102 | * Helper macro for drivers that don't do anything special in module init / exit |
103 | * call. This helps to eliminate boilerplate code. |
104 | */ |
105 | #define module_misc_device(__misc_device) \ |
106 | module_driver(__misc_device, misc_register, misc_deregister) |
107 | |
108 | #define MODULE_ALIAS_MISCDEV(minor) \ |
109 | MODULE_ALIAS("char-major-" __stringify(MISC_MAJOR) \ |
110 | "-" __stringify(minor)) |
111 | #endif |
112 | |