1 .\" $NetBSD: store.9,v 1.2 1996/01/09 21:59:27 perry Exp $
3 .\" Copyright (c) 1996 Jason R. Thorpe.
4 .\" All rights reserved.
6 .\" This code is derived from software contributed by Kenneth Stailey.
8 .\" Redistribution and use in source and binary forms, with or without
9 .\" modification, are permitted provided that the following conditions
11 .\" 1. Redistributions of source code must retain the above copyright
12 .\" notice, this list of conditions and the following disclaimer.
13 .\" 2. Redistributions in binary form must reproduce the above copyright
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16 .\" 3. All advertising materials mentioning features or use of this software
17 .\" must display the following acknowledgement:
18 .\" This product includes software developed for the NetBSD Project
19 .\" by Jason R. Thorpe.
20 .\" 4. The name of the author may not be used to endorse or promote products
21 .\" derived from this software without specific prior written permission.
23 .\" THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
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44 .Nd store data to user-space
46 .Fd #include <sys/types.h>
47 .Fd #include <sys/time.h>
48 .Fd #include <sys/systm.h>
49 .Fd #include <sys/resourcevar.h>
51 .Fn subyte "void *base" "int byte"
53 .Fn susword "void *base" "int word"
55 .Fn suswintr "void *base" "int word"
57 .Fn suword "void *base" "long word"
61 functions are designed to copy small amounts of data to user-space.
65 routines provide the following functionality:
66 .Bl -tag -width "suswintr()"
68 Stores a byte of data to the user-space address
71 Stores a short word of data to the user-space address
74 Stores a short word of data to the user-space address
76 This function is safe to call during an interrupt context.
78 Stores a word of data to the user-space address
84 functions return 0 on success or -1 on failure.