alloc_chrdev_region — register a range of char device numbers
Synopsis
intalloc_chrdev_region(
dev_t *dev,
unsignedbaseminor,
unsignedcount,
const char *name);
Arguments
dev_t * dev
output parameter for first assigned number
unsigned baseminor
first of the requested range of minor numbers
unsigned count
the number of minor numbers required
const char * name
the name of the associated device or driver
Description
Allocates a range of char device numbers. The major number will be chosen dynamically, and returned (along with the first minor number) indev. Returns zero or a negative error code.