devsw9
Returns the cdevsw structure
Usage
#include <sys/param.h>
#include <sys/conf.h>
struct cdevsw *
devsw(dev_t dev);
Overview
The devsw() function returns a pointer to the cdevsw structure associated with this character device ID. If dev->si_cdevsw is set it is returned; otherwise, the major(9) offset into the cdevsw array is returned.
Its argument is:
- dev
-
The device whose cdevsw entry should be returned.
Return values
A pointer to a cdevsw structure.