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authorJonathan McCrohan <jmccrohan@gmail.com>2013-08-07 00:18:13 +0100
committerJonathan McCrohan <jmccrohan@gmail.com>2013-08-07 00:18:13 +0100
commitd01de06fc92ddf51e2b3085ed00d2999a9e2055d (patch)
tree17d0da6d8b0eae51c07b7de18b395e61b515a6c4 /dvb-t/uk-Chatton
parent62407a091735b201caebf7005ccc80da1540f459 (diff)
downloaddtv-scan-tables-d01de06fc92ddf51e2b3085ed00d2999a9e2055d.tar.gz
Imported Upstream version 0+git20130622.edc0bc3upstream/0+git20130622.edc0bc3
Diffstat (limited to '')
0 files changed, 0 insertions, 0 deletions
generated by cgit v1.2.3 (git 2.25.1) at 2024-11-02 16:27:22 +0000
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/*
 * Test switching the 22kHz tone signal on and off on a SAT frontend.
 * (Note: DiSEqC equipment ignores this after it has once seen a diseqc
 *  sequence; reload the driver or unplug/replug the SAT cable to reset.)
 *
 * usage: FRONTEND=/dev/dvb/adapterX/frontendX set22k {on|off}
 */

#include <stdlib.h>
#include <stdio.h>
#include <string.h>
#include <unistd.h>
#include <sys/ioctl.h>
#include <sys/types.h>
#include <sys/stat.h>
#include <fcntl.h>

#include <linux/dvb/frontend.h>


int main (int argc, char **argv)
{
   char *fedev = "/dev/dvb/adapter0/frontend0";
   int fd, r;

   if (argc != 2 || (strcmp(argv[1], "on") && strcmp(argv[1], "off"))) {
      fprintf (stderr, "usage: %s <on|off>\n", argv[0]);
      return 1;
   }
   if (getenv("FRONTEND"))
	   fedev = getenv("FRONTEND");
   printf("set22k: using '%s'\n", fedev);

   if ((fd = open (fedev, O_RDWR)) < 0) {
      perror ("open");
      return 1;
   }

   if (strcmp(argv[1], "on") == 0)
      r = ioctl (fd, FE_SET_TONE, SEC_TONE_ON);
   else
      r = ioctl (fd, FE_SET_TONE, SEC_TONE_OFF);
   if (r == -1)
	   perror("ioctl FE_SET_TONE");

   close (fd);

   return 0;
}