miscdevice.h 3.2 KB

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  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. * These allocations are managed by device@lanana.org. If you need
  10. * an entry that is not assigned here, it can be moved and
  11. * reassigned or dynamically set if a fixed value is not justified.
  12. */
  13. #define PSMOUSE_MINOR 1
  14. #define MS_BUSMOUSE_MINOR 2 /* unused */
  15. #define ATIXL_BUSMOUSE_MINOR 3 /* unused */
  16. /*#define AMIGAMOUSE_MINOR 4 FIXME OBSOLETE */
  17. #define ATARIMOUSE_MINOR 5 /* unused */
  18. #define SUN_MOUSE_MINOR 6 /* unused */
  19. #define APOLLO_MOUSE_MINOR 7 /* unused */
  20. #define PC110PAD_MINOR 9 /* unused */
  21. /*#define ADB_MOUSE_MINOR 10 FIXME OBSOLETE */
  22. #define WATCHDOG_MINOR 130 /* Watchdog timer */
  23. #define TEMP_MINOR 131 /* Temperature Sensor */
  24. #define APM_MINOR_DEV 134
  25. #define RTC_MINOR 135
  26. /*#define EFI_RTC_MINOR 136 was EFI Time services */
  27. #define VHCI_MINOR 137
  28. #define SUN_OPENPROM_MINOR 139
  29. #define DMAPI_MINOR 140 /* unused */
  30. #define NVRAM_MINOR 144
  31. #define SBUS_FLASH_MINOR 152
  32. #define SGI_MMTIMER 153
  33. #define PMU_MINOR 154
  34. #define STORE_QUEUE_MINOR 155 /* unused */
  35. #define LCD_MINOR 156
  36. #define AC_MINOR 157
  37. #define BUTTON_MINOR 158 /* Major 10, Minor 158, /dev/nwbutton */
  38. #define NWFLASH_MINOR 160 /* MAJOR is 10 - miscdevice */
  39. #define ENVCTRL_MINOR 162
  40. #define I2O_MINOR 166
  41. #define UCTRL_MINOR 174
  42. #define AGPGART_MINOR 175
  43. #define TOSH_MINOR_DEV 181
  44. #define HWRNG_MINOR 183
  45. #define MICROCODE_MINOR 184
  46. #define KEYPAD_MINOR 185
  47. #define IRNET_MINOR 187
  48. #define D7S_MINOR 193
  49. #define VFIO_MINOR 196
  50. #define PXA3XX_GCU_MINOR 197
  51. #define TUN_MINOR 200
  52. #define CUSE_MINOR 203
  53. #define MWAVE_MINOR 219 /* ACP/Mwave Modem */
  54. #define MPT_MINOR 220
  55. #define MPT2SAS_MINOR 221
  56. #define MPT3SAS_MINOR 222
  57. #define UINPUT_MINOR 223
  58. #define MISC_MCELOG_MINOR 227
  59. #define HPET_MINOR 228
  60. #define FUSE_MINOR 229
  61. #define SNAPSHOT_MINOR 231
  62. #define KVM_MINOR 232
  63. #define BTRFS_MINOR 234
  64. #define AUTOFS_MINOR 235
  65. #define MAPPER_CTRL_MINOR 236
  66. #define LOOP_CTRL_MINOR 237
  67. #define VHOST_NET_MINOR 238
  68. #define UHID_MINOR 239
  69. #define USERIO_MINOR 240
  70. #define VHOST_VSOCK_MINOR 241
  71. #define RFKILL_MINOR 242
  72. #define MISC_DYNAMIC_MINOR 255
  73. struct device;
  74. struct attribute_group;
  75. struct miscdevice {
  76. int minor;
  77. const char *name;
  78. const struct file_operations *fops;
  79. struct list_head list;
  80. struct device *parent;
  81. struct device *this_device;
  82. const struct attribute_group **groups;
  83. const char *nodename;
  84. umode_t mode;
  85. };
  86. extern int misc_register(struct miscdevice *misc);
  87. extern void misc_deregister(struct miscdevice *misc);
  88. /*
  89. * Helper macro for drivers that don't do anything special in the initcall.
  90. * This helps to eliminate boilerplate code.
  91. */
  92. #define builtin_misc_device(__misc_device) \
  93. builtin_driver(__misc_device, misc_register)
  94. /*
  95. * Helper macro for drivers that don't do anything special in module init / exit
  96. * call. This helps to eliminate boilerplate code.
  97. */
  98. #define module_misc_device(__misc_device) \
  99. module_driver(__misc_device, misc_register, misc_deregister)
  100. #define MODULE_ALIAS_MISCDEV(minor) \
  101. MODULE_ALIAS("char-major-" __stringify(MISC_MAJOR) \
  102. "-" __stringify(minor))
  103. #endif