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 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 76struct device; 77struct attribute_group; 78 79struct 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 91extern int misc_register(struct miscdevice *misc); 92extern 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