2 * SPDX-License-Identifier: BSD-4-Clause
4 * Copyright (c) 1994 Geoffrey M. Rehmet
7 * Redistribution and use in source and binary forms, with or without
8 * modification, are permitted provided that the following conditions
10 * 1. Redistributions of source code must retain the above copyright
11 * notice, this list of conditions and the following disclaimer.
12 * 2. Redistributions in binary form must reproduce the above copyright
13 * notice, this list of conditions and the following disclaimer in the
14 * documentation and/or other materials provided with the distribution.
15 * 3. All advertising materials mentioning features or use of this software
16 * must display the following acknowledgement:
17 * This product includes software developed by Geoffrey M. Rehmet
18 * 4. The name of the author may not be used to endorse or promote products
19 * derived from this software without specific prior written permission
21 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
22 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
23 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
24 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
25 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
26 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
27 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
28 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
29 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
30 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
33 #include <sys/cdefs.h>
34 __FBSDID("$FreeBSD$");
36 #include <dev/ppbus/lptio.h>
45 #define DEFAULT_DEVICE "/dev/lpt0.ctl"
46 #define IRQ_UNSPECIFIED -1
49 #define USE_EXT_MODE 2
50 #define USE_STD_MODE 3
52 static void usage(void)
55 "usage: lptcontrol -e | -i | -p | -s [[-d] controldevice]\n");
59 int main (int argc, char **argv)
66 device = DEFAULT_DEVICE;
67 irq_status = IRQ_UNSPECIFIED;
68 while ((opt = getopt(argc, argv, "d:eips")) != -1)
74 irq_status = USE_EXT_MODE;
83 irq_status = USE_STD_MODE;
92 /* POLA: DTRT if -d was forgotten, but device name was specified. */
98 if (irq_status == IRQ_UNSPECIFIED || argc != 0)
101 if ((fd = open(device, O_WRONLY)) < 0)
103 if (ioctl(fd, LPT_IRQ, &irq_status) < 0)