diff options
Diffstat (limited to 'include/linux/miscdevice.h')
| -rw-r--r-- | include/linux/miscdevice.h | 111 |
1 files changed, 111 insertions, 0 deletions
diff --git a/include/linux/miscdevice.h b/include/linux/miscdevice.h new file mode 100644 index 000000000..c0fea6ca5 --- /dev/null +++ b/include/linux/miscdevice.h @@ -0,0 +1,111 @@ +/* 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 unused */ +#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 |