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