alloc_chrdev_region (9) Linux Manual Page
alloc_chrdev_region – register a range of char device numbers
Synopsis
int alloc_chrdev_region(dev_t *dev, unsigned baseminor, unsigned count, const char *name);Arguments
dev
-
- output parameter for first assigned number
baseminor
- first of the requested range of minor numbers
count
- the number of minor numbers required
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) in dev. Returns zero or a negative error code.