1 files changed, 47 insertions, 0 deletions
diff --git a/test/setvoltage.c b/test/setvoltage.c
new file mode 100644
index 0000000..1d14a4c
--- /dev/null
+++ b/test/setvoltage.c
@@ -0,0 +1,47 @@
+/*
+ * Test switching the voltage signal high and low 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 setvoltage {13|18}
+ */
+
+#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], "13") && strcmp(argv[1], "18"))) {
+      fprintf (stderr, "usage: %s <13|18>\n", argv[0]);
+      return -1;
+   }
+   if (getenv("FRONTEND"))
+	   fedev = getenv("FRONTEND");
+   printf("setvoltage: using '%s'\n", fedev);
+
+   if ((fd = open (fedev, O_RDWR)) < 0)
+      perror ("open");
+
+   if (strcmp(argv[1], "13") == 0)
+      r = ioctl (fd, FE_SET_VOLTAGE, SEC_VOLTAGE_13);
+   else
+      r = ioctl (fd, FE_SET_VOLTAGE, SEC_VOLTAGE_18);
+   if (r == -1)
+	   perror ("ioctl FE_SET_VOLTAGE");
+
+   close (fd);
+
+   return 0;
+}
+