diff options
Diffstat (limited to 'include/linux/miscdevice.h')
| -rw-r--r-- | include/linux/miscdevice.h | 26 |
1 files changed, 16 insertions, 10 deletions
diff --git a/include/linux/miscdevice.h b/include/linux/miscdevice.h index c7a93002a3c1..7d0aa718499c 100644 --- a/include/linux/miscdevice.h +++ b/include/linux/miscdevice.h @@ -7,9 +7,9 @@ #include <linux/device.h> /* - * These allocations are managed by device@lanana.org. If you use an - * entry that is not in assigned your entry may well be moved and - * reassigned, or set dynamic if a fixed value is not justified. + * 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 @@ -44,7 +44,7 @@ #define AGPGART_MINOR 175 #define TOSH_MINOR_DEV 181 #define HWRNG_MINOR 183 -#define MICROCODE_MINOR 184 +/*#define MICROCODE_MINOR 184 unused */ #define KEYPAD_MINOR 185 #define IRNET_MINOR 187 #define D7S_MINOR 193 @@ -70,13 +70,19 @@ #define UHID_MINOR 239 #define USERIO_MINOR 240 #define VHOST_VSOCK_MINOR 241 +#define EISA_EEPROM_MINOR 241 #define RFKILL_MINOR 242 -#define MISC_DYNAMIC_MINOR 255 -struct device; -struct attribute_group; +/* + * Misc char device minor code space division related to below macro: + * + * < 255 : Fixed minor code + * == 255 : Indicator to request dynamic minor code + * > 255 : Dynamic minor code requested, 1048320 minor codes totally. + */ +#define MISC_DYNAMIC_MINOR 255 -struct miscdevice { +struct miscdevice { int minor; const char *name; const struct file_operations *fops; @@ -93,14 +99,14 @@ extern void misc_deregister(struct miscdevice *misc); /* * Helper macro for drivers that don't do anything special in the initcall. - * This helps in eleminating of boilerplate code. + * 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 in eleminating of boilerplate code. + * call. This helps to eliminate boilerplate code. */ #define module_misc_device(__misc_device) \ module_driver(__misc_device, misc_register, misc_deregister) |