| /* SPDX-License-Identifier: GPL-2.0 */ |
| #ifndef _LINUX_MISCDEVICE_H |
| #define _LINUX_MISCDEVICE_H |
| #include <linux/major.h> |
| #include <linux/list.h> |
| #include <linux/types.h> |
| #include <linux/device.h> |
| |
| /* |
| * These allocations are managed by device@lanana.org. If you need |
| * an entry that is not assigned here, it can be moved and |
| * reassigned or dynamically set if a fixed value is not justified. |
| */ |
| |
| #define PSMOUSE_MINOR 1 |
| #define MS_BUSMOUSE_MINOR 2 /* unused */ |
| #define ATIXL_BUSMOUSE_MINOR 3 /* unused */ |
| /*#define AMIGAMOUSE_MINOR 4 FIXME OBSOLETE */ |
| #define ATARIMOUSE_MINOR 5 /* unused */ |
| #define SUN_MOUSE_MINOR 6 /* unused */ |
| #define APOLLO_MOUSE_MINOR 7 /* unused */ |
| #define PC110PAD_MINOR 9 /* unused */ |
| /*#define ADB_MOUSE_MINOR 10 FIXME OBSOLETE */ |
| #define WATCHDOG_MINOR 130 /* Watchdog timer */ |
| #define TEMP_MINOR 131 /* Temperature Sensor */ |
| #define APM_MINOR_DEV 134 |
| #define RTC_MINOR 135 |
| /*#define EFI_RTC_MINOR 136 was EFI Time services */ |
| #define VHCI_MINOR 137 |
| #define SUN_OPENPROM_MINOR 139 |
| #define DMAPI_MINOR 140 /* unused */ |
| #define NVRAM_MINOR 144 |
| #define SBUS_FLASH_MINOR 152 |
| #define SGI_MMTIMER 153 |
| #define PMU_MINOR 154 |
| #define STORE_QUEUE_MINOR 155 /* unused */ |
| #define LCD_MINOR 156 |
| #define AC_MINOR 157 |
| #define BUTTON_MINOR 158 /* Major 10, Minor 158, /dev/nwbutton */ |
| #define NWFLASH_MINOR 160 /* MAJOR is 10 - miscdevice */ |
| #define ENVCTRL_MINOR 162 |
| #define I2O_MINOR 166 |
| #define UCTRL_MINOR 174 |
| #define AGPGART_MINOR 175 |
| #define TOSH_MINOR_DEV 181 |
| #define HWRNG_MINOR 183 |
| #define MICROCODE_MINOR 184 |
| #define KEYPAD_MINOR 185 |
| #define IRNET_MINOR 187 |
| #define D7S_MINOR 193 |
| #define VFIO_MINOR 196 |
| #define PXA3XX_GCU_MINOR 197 |
| #define TUN_MINOR 200 |
| #define CUSE_MINOR 203 |
| #define MWAVE_MINOR 219 /* ACP/Mwave Modem */ |
| #define MPT_MINOR 220 |
| #define MPT2SAS_MINOR 221 |
| #define MPT3SAS_MINOR 222 |
| #define UINPUT_MINOR 223 |
| #define MISC_MCELOG_MINOR 227 |
| #define HPET_MINOR 228 |
| #define FUSE_MINOR 229 |
| #define SNAPSHOT_MINOR 231 |
| #define KVM_MINOR 232 |
| #define BTRFS_MINOR 234 |
| #define AUTOFS_MINOR 235 |
| #define MAPPER_CTRL_MINOR 236 |
| #define LOOP_CTRL_MINOR 237 |
| #define VHOST_NET_MINOR 238 |
| #define UHID_MINOR 239 |
| #define USERIO_MINOR 240 |
| #define VHOST_VSOCK_MINOR 241 |
| #define RFKILL_MINOR 242 |
| #define MISC_DYNAMIC_MINOR 255 |
| |
| struct device; |
| struct attribute_group; |
| |
| struct miscdevice { |
| int minor; |
| const char *name; |
| const struct file_operations *fops; |
| struct list_head list; |
| struct device *parent; |
| struct device *this_device; |
| const struct attribute_group **groups; |
| const char *nodename; |
| umode_t mode; |
| }; |
| |
| extern int misc_register(struct miscdevice *misc); |
| extern void misc_deregister(struct miscdevice *misc); |
| |
| /* |
| * Helper macro for drivers that don't do anything special in the initcall. |
| * This helps to eliminate boilerplate code. |
| */ |
| #define builtin_misc_device(__misc_device) \ |
| builtin_driver(__misc_device, misc_register) |
| |
| /* |
| * Helper macro for drivers that don't do anything special in module init / exit |
| * call. This helps to eliminate boilerplate code. |
| */ |
| #define module_misc_device(__misc_device) \ |
| module_driver(__misc_device, misc_register, misc_deregister) |
| |
| #define MODULE_ALIAS_MISCDEV(minor) \ |
| MODULE_ALIAS("char-major-" __stringify(MISC_MAJOR) \ |
| "-" __stringify(minor)) |
| #endif |