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git://projects.qi-hardware.com/ben-blinkenlights.git
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ubbctl/ubbctl.c: new option -c for continuous display
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commit
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@ -56,7 +56,6 @@ static void show_pins(void)
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}
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printf("%d", pin);
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}
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printf("\n");
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}
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@ -121,8 +120,9 @@ static int setup_pin(const char *s, int doit)
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static void usage(const char *name)
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{
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fprintf(stderr,
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"usage: %s\n"
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"usage: %s [-c]\n"
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" %s name=value|action ...\n\n"
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" -c continously update the pin status (until user interrupts)\n\n"
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"Names: nPWR, CMD, CLK, DAT0, DAT1, DAT2, DAT3\n"
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"Values: F, 0, 1, Z, R\n"
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"Actions: ON, OFF\n"
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@ -133,21 +133,39 @@ static void usage(const char *name)
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int main(int argc, char **argv)
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{
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int continuous = 0;
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int c, i;
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while ((c = getopt(argc, argv, "")) != EOF)
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while ((c = getopt(argc, argv, "c")) != EOF)
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switch (c) {
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case 'c':
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continuous = 1;
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break;
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default:
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usage(*argv);
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}
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if (argc != optind && continuous)
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usage(*argv);
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for (i = optind; i != argc; i++)
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if (!setup_pin(argv[i], 0))
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usage(*argv);
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ubb_open(UBB_ALL);
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if (argc == optind) {
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show_pins();
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if (continuous) {
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while (1) {
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show_pins();
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printf("%*s\r", sizeof(pins)/sizeof(*pins)*2,
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"");
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fflush(stdout);
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usleep(200*1000);
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}
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} else {
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show_pins();
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putchar('\n');
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}
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} else {
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for (i = optind; i != argc; i++)
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setup_pin(argv[i], 1);
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