store(9) - Manual pages

NAME

store, subyte, suibyte, susword, suswintr, suword, suiword — store data to user-space

#include <sys/types.h>
#include <sys/systm.h>

int
subyte(void *base, int c);

int
susword(void *base, short c);

int
suswintr(void *base, short c);

int
suword(void *base, long c);

The store functions are designed to copy small amounts of data to the user-space of the currently running process.

The store routines provide the following functionality:

subyte(): Stores a byte of data to the user-space address base.
susword(): Stores a short word of data to the user-space address base.
suswintr(): Stores a short word of data to the user-space address base. This function is safe to call during an interrupt context.
suword(): Stores a word of data to the user-space address base.

The store functions return 0 on success or -1 on failure.