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 [email protected]. If you use an 11 * entry that is not in assigned your entry may well be moved and 12 * reassigned, or set dynamic 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 /* 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 SGI_MMTIMER 153 34 #define STORE_QUEUE_MINOR 155 /* unused */ 35 #define I2O_MINOR 166 36 #define AGPGART_MINOR 175 37 #define HWRNG_MINOR 183 38 #define MICROCODE_MINOR 184 39 #define IRNET_MINOR 187 40 #define D7S_MINOR 193 41 #define VFIO_MINOR 196 42 #define TUN_MINOR 200 43 #define CUSE_MINOR 203 44 #define MWAVE_MINOR 219 /* ACP/Mwave Modem */ 45 #define MPT_MINOR 220 46 #define MPT2SAS_MINOR 221 47 #define MPT3SAS_MINOR 222 48 #define UINPUT_MINOR 223 49 #define MISC_MCELOG_MINOR 227 50 #define HPET_MINOR 228 51 #define FUSE_MINOR 229 52 #define KVM_MINOR 232 53 #define BTRFS_MINOR 234 54 #define AUTOFS_MINOR 235 55 #define MAPPER_CTRL_MINOR 236 56 #define LOOP_CTRL_MINOR 237 57 #define VHOST_NET_MINOR 238 58 #define UHID_MINOR 239 59 #define USERIO_MINOR 240 60 #define VHOST_VSOCK_MINOR 241 61 #define RFKILL_MINOR 242 62 #define MISC_DYNAMIC_MINOR 255 63 64 struct device; 65 struct attribute_group; 66 67 struct miscdevice { 68 int minor; 69 const char *name; 70 const struct file_operations *fops; 71 struct list_head list; 72 struct device *parent; 73 struct device *this_device; 74 const struct attribute_group **groups; 75 const char *nodename; 76 umode_t mode; 77 }; 78 79 extern int misc_register(struct miscdevice *misc); 80 extern void misc_deregister(struct miscdevice *misc); 81 82 /* 83 * Helper macro for drivers that don't do anything special in the initcall. 84 * This helps in eleminating of boilerplate code. 85 */ 86 #define builtin_misc_device(__misc_device) \ 87 builtin_driver(__misc_device, misc_register) 88 89 /* 90 * Helper macro for drivers that don't do anything special in module init / exit 91 * call. This helps in eleminating of boilerplate code. 92 */ 93 #define module_misc_device(__misc_device) \ 94 module_driver(__misc_device, misc_register, misc_deregister) 95 96 #define MODULE_ALIAS_MISCDEV(minor) \ 97 MODULE_ALIAS("char-major-" __stringify(MISC_MAJOR) \ 98 "-" __stringify(minor)) 99 #endif 100