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| 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_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) in dev. Returns zero or a negative error code.
COPYRIGHT¶
| July 2017 | Kernel Hackers Manual 4.11 |