ALLOC_CHRDEV_REGION(9) Char devices ALLOC_CHRDEV_REGION(9)
NAME 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.
COPYRIGHT Kernel Hackers Manual 2.6. September 2014 ALLOC_CHRDEV_REGION(9)