miscdevice.h 2.8 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 use an
  10. * entry that is not in assigned your entry may well be moved and
  11. * reassigned, or set dynamic 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 /* 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 SGI_MMTIMER 153
  32. #define STORE_QUEUE_MINOR 155 /* unused */
  33. #define I2O_MINOR 166
  34. #define HWRNG_MINOR 183
  35. #define MICROCODE_MINOR 184
  36. #define IRNET_MINOR 187
  37. #define D7S_MINOR 193
  38. #define VFIO_MINOR 196
  39. #define TUN_MINOR 200
  40. #define CUSE_MINOR 203
  41. #define MWAVE_MINOR 219 /* ACP/Mwave Modem */
  42. #define MPT_MINOR 220
  43. #define MPT2SAS_MINOR 221
  44. #define MPT3SAS_MINOR 222
  45. #define UINPUT_MINOR 223
  46. #define MISC_MCELOG_MINOR 227
  47. #define HPET_MINOR 228
  48. #define FUSE_MINOR 229
  49. #define KVM_MINOR 232
  50. #define BTRFS_MINOR 234
  51. #define AUTOFS_MINOR 235
  52. #define MAPPER_CTRL_MINOR 236
  53. #define LOOP_CTRL_MINOR 237
  54. #define VHOST_NET_MINOR 238
  55. #define UHID_MINOR 239
  56. #define USERIO_MINOR 240
  57. #define VHOST_VSOCK_MINOR 241
  58. #define MISC_DYNAMIC_MINOR 255
  59. struct device;
  60. struct attribute_group;
  61. struct miscdevice {
  62. int minor;
  63. const char *name;
  64. const struct file_operations *fops;
  65. struct list_head list;
  66. struct device *parent;
  67. struct device *this_device;
  68. const struct attribute_group **groups;
  69. const char *nodename;
  70. umode_t mode;
  71. };
  72. extern int misc_register(struct miscdevice *misc);
  73. extern void misc_deregister(struct miscdevice *misc);
  74. /*
  75. * Helper macro for drivers that don't do anything special in the initcall.
  76. * This helps in eleminating of boilerplate code.
  77. */
  78. #define builtin_misc_device(__misc_device) \
  79. builtin_driver(__misc_device, misc_register)
  80. /*
  81. * Helper macro for drivers that don't do anything special in module init / exit
  82. * call. This helps in eleminating of boilerplate code.
  83. */
  84. #define module_misc_device(__misc_device) \
  85. module_driver(__misc_device, misc_register, misc_deregister)
  86. #define MODULE_ALIAS_MISCDEV(minor) \
  87. MODULE_ALIAS("char-major-" __stringify(MISC_MAJOR) \
  88. "-" __stringify(minor))
  89. #endif