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