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SUWORD16(9FREEBSD) - man page online | system kernel interfaces

Store data to user-space.

Chapter
October 5, 2009
STORE(9)                          BSD Kernel Developer's Manual                          STORE(9)

NAME store, subyte, suswintr, suword — store data to user-space
SYNOPSIS #include <sys/types.h> #include <sys/time.h> #include <sys/systm.h> int subyte(void *base, int byte); int suword(void *base, long word); int suword16(void *base, int word); int suword32(void *base, int32_t word); int suword64(void *base, int64_t word); #include <sys/resourcevar.h> int suswintr(void *base, int word);
DESCRIPTION The store functions are designed to copy small amounts of data to user-space. 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. suswintr() Stores a short word of data to the user-space address base. This function is safe to call during an interrupt context.
RETURN VALUES The store functions return 0 on success or -1 on failure.
SEE ALSO copy(9), fetch(9)
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