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atrf-gpio: cleaned up usage

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- atrf-gpio.c (usage): added newline after synopsis
- atrf-gpio.c (usage): description of option -p was missing
- atrf-gpio.c (main): invocation without patterns/commands is now an
  error
This commit is contained in:
Werner Almesberger 2011-06-06 19:42:31 -03:00
parent 533dc58824
commit 8f20b1fb87
1 changed files with 6 additions and 2 deletions
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8
tools/atrf-gpio/atrf-gpio.c
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@ -227,9 +227,10 @@ static void pass_fail(void)
static void usage(const char *name) static void usage(const char *name)
{ {
fprintf(stderr, fprintf(stderr,
"usage: %s [-c] [-d driver[:arg]] command|pattern ...\n" "usage: %s [-c] [-d driver[:arg]] [-p] command|pattern ...\n\n"
" -c cycle, waiting for Pass/Fail/Quit input\n" " -c cycle, waiting for Pass/Fail/Quit input\n"
" -d driver[:arg] use the specified driver (default: %s)\n\n" " -d driver[:arg] use the specified driver (default: %s)\n"
" -p stay in P_ON state instead of entering TRX_OFF\n\n"
" command is one of:\n" " command is one of:\n"
" reg=value set transceiver register\n" " reg=value set transceiver register\n"
" reg:[value[/mask]]\n" " reg:[value[/mask]]\n"
@ -290,6 +291,9 @@ int main(int argc, char *const *argv)
usage(*argv); usage(*argv);
} }
if (optind == argc)
usage(*argv);
for (i = optind; i != argc; i++) { for (i = optind; i != argc; i++) {
if (*argv[i] == '#') if (*argv[i] == '#')
continue; continue;