utils/dvb: add options to select adapter/frontend/verbose

Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>

diff --git a/utils/dvb/dvbv5_scan.c b/utils/dvb/dvbv5_scan.c
index 0118f9c..f87a0f8 100644 (file)
--- a/utils/dvb/dvbv5_scan.c
+++ b/utils/dvb/dvbv5_scan.c
@@ -3,13 +3,61 @@
  */
 
 #include "dvb-fe.h"
+#include <argp.h>
+#include <stdlib.h>
+#include <stdio.h>
 
-int main(void)
+const char *argp_program_version = "DVBv5 scan version "V4L_UTILS_VERSION;
+const char *argp_program_bug_address = "Mauro Carvalho Chehab <mchehab@redhat.com>";
+
+static const char doc[] = "\nAllows scanning DVB using API version 5\n"
+       "\nOn the options bellow, the arguments are:\n"
+       "  ADAPTER      - the dvb adapter to control\n"
+       "  FRONTEND     - the dvb frontend to control";
+
+static const struct argp_option options[] = {
+       {"verbose",     'v',    0,              0,      "enables debug messages", 0},
+       {"adapter",     'a',    "ADAPTER",      0,      "dvb adapter", 0},
+       {"frontend",    'f',    "FRONTEND",     0,      "dvb frontend", 0},
+       { 0, 0, 0, 0, 0, 0 }
+};
+
+static int adapter = 0;
+static int frontend = 0;
+static int verbose = 1;                /* FIXME */
+
+static error_t parse_opt(int k, char *arg, struct argp_state *state)
+{
+       switch (k) {
+       case 'a':
+               adapter = atoi(arg);
+               break;
+       case 'f':
+               frontend = atoi(arg);
+               break;
+       case 'v':
+               verbose ++;
+               break;
+       default:
+               return ARGP_ERR_UNKNOWN;
+       }
+       return 0;
+}
+
+static struct argp argp = {
+       .options = options,
+       .parser = parse_opt,
+       .doc = doc,
+};
+
+int main(int argc, char *argv[])
 {
        struct dvb_v5_fe_parms *parms;
 
-       parms = dvb_fe_open(0, 0, 1);
+       argp_parse(&argp, argc, argv, 0, 0, 0);
+
+       parms = dvb_fe_open(adapter, frontend, verbose);
        dvb_fe_close(parms);
 
        return 0;
-}
\ No newline at end of file
+}