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STORE(9)                                BSD Kernel Developer's Manual                               STORE(9)

NAME
     store, subyte, suibyte, suiword, sulong, suulong, suword -- store data to user-space

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

     int
     subyte(user_addr_t addr, int byte);

     int
     suibyte(user_addr_t addr, int byte);

     int
     suiword(user_addr_t addr, int word);

     int
     sulong(user_addr_t addr, int64_t longword);

     int
     suulong(user_addr_t addr, uint64_t longword);

     int
     suword(user_addr_t addr, 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 addr.

     suibyte()  Stores a byte of data to the user-space address addr.  This function is safe to call during
                an interrupt context.

     suiword()  Stores a word of data to the user-space address addr.  This function is safe to call during
                an interrupt context.

     sulong()   Stores a long word of data to the user-space address addr.

     suulong()  Stores a unsigned long word of data to the user-space address addr.

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

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

SEE ALSO
     copy(9), fetch(9)

BSD                                           December 16, 2004                                          BSD