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/*
* Copyright (c) 1995 Andrew McRae. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. The name of the author may not be used to endorse or promote products
* derived from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#ifndef lint
static const char rcsid[] =
"$Id: wrattr.c,v 1.10 1997/11/18 21:08:08 nate Exp $";
#endif /* not lint */
#include <err.h>
#include <fcntl.h>
#include <stdio.h>
#include <stdlib.h>
#include <unistd.h>
#include <sys/types.h>
#include <sys/ioctl.h>
#include <pccard/cardinfo.h>
static void
usage()
{
fprintf(stderr, "usage: pccardc wrattr slot offs value\n");
exit(1);
}
int
wrattr_main(argc, argv)
int argc;
char *argv[];
{
int reg, value;
char name[64], c;
int fd;
off_t offs;
if (argc != 4)
usage();
sprintf(name, CARD_DEVICE, atoi(argv[1]));
fd = open(name, O_RDWR);
if (fd < 0)
err(1, "%s", name);
reg = MDF_ATTR;
if (ioctl(fd, PIOCRWFLAG, ®))
err(1, "ioctl (PIOCRWFLAG)");
if (sscanf(argv[2], "%x", ®) != 1 ||
sscanf(argv[3], "%x", &value) != 1)
errx(1, "arg error");
offs = reg;
c = value;
lseek(fd, offs, SEEK_SET);
if (write(fd, &c, 1) != 1)
warn("%s", name);
return 0;
}
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