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 | |
62 | struct device; |
63 | struct attribute_group; |
64 | |
65 | struct 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 | |
77 | extern int misc_register(struct miscdevice *misc); |
78 | extern 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 | |