This quick patch should make the sscape_ctl utility slightly more user-friendly.
Chris
Index: sscape_ctl.c
===================================================================
RCS file: /cvsroot/alsa/alsa-tools/sscape_ctl/sscape_ctl.c,v
retrieving revision 1.1
diff -u -u -r1.1 sscape_ctl.c
--- sscape_ctl.c 22 Sep 2002 08:58:04 -0000 1.1
+++ sscape_ctl.c 28 Sep 2002 18:21:49 -0000
@@ -16,6 +16,23 @@
const char scope[] = "scope.cod";
+static void
+show_usage(void)
+{
+ printf("sscape_ctl: [--card card number]\n"
+ " [--directory firmware directory]\n"
+ "sscape_ctl: --help\n"
+ "sscape_ctl: --version\n");
+}
+
+
+static void
+show_version(void)
+{
+ printf("ALSA SoundScape control utility: v" VERSION "\n");
+}
+
+
void
safe_close(int fd)
{
@@ -120,13 +137,16 @@
return err;
}
+
static const struct option long_option[] = {
{ "card", 1, NULL, 'c' },
{ "directory", 1, NULL, 'd' },
+ { "help", 0, NULL, 'h' },
+ { "version", 0, NULL, 'v' },
{ NULL, 0, NULL, '\0' }
};
-static const char option[] = "c:d:";
+static const char option[] = "c:d:hv";
int
main(int argc, char *argv[])
@@ -157,14 +177,21 @@
directory = optarg;
break;
+ case 'h':
+ show_usage();
+ return EXIT_SUCCESS;
+
+ case 'v':
+ show_version();
+ return EXIT_SUCCESS;
+
default:
- fprintf(stderr, "Unknown option \'%c\'\n", c);
- break;
+ return EXIT_FAILURE;
} /* switch */
} /* while */
ret = EXIT_FAILURE;
- sprintf(devicename, "hw:%i,0", card);
+ snprintf(devicename, sizeof(devicename), "hw:%i,0", card);
err = snd_hwdep_open(&handle, devicename, O_WRONLY);
if (err < 0)
{
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