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. January 2013 ALLOC_CHRDEV_REGION(9)