NAME

       store, subyte, suword — store data to user-space

SYNOPSIS

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

       int
       subyte(volatile void *base, int byte);

       int
       suword(volatile void *base, long word);

       int
       suword16(volatile void *base, int word);

       int
       suword32(volatile void *base, int32_t word);

       int
       suword64(volatile void *base, int64_t word);

       #include <sys/resourcevar.h>

DESCRIPTION

       The store functions are designed to copy small amounts of data to user-space.  If write is successful, it
       is performed atomically.  The data written must be naturally aligned.

       The store routines provide the following functionality:

       subyte()    Stores a byte of data to the user-space address base.

       suword()    Stores a word of data to the user-space address base.

       suword16()  Stores 16 bits of data to the user-space address base.

       suword32()  Stores 32 bits of data to the user-space address base.

       suword64()  Stores 64 bits of data to the user-space address base.

RETURN VALUES

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

SEE ALSO

       copy(9), fetch(9)

Debian                                           April 17, 2018                                         STORE(9)