diff options
| -rw-r--r-- | tools/intel_bios_reader.c | 18 |
1 files changed, 17 insertions, 1 deletions
diff --git a/tools/intel_bios_reader.c b/tools/intel_bios_reader.c index 4767425f..5bad3f49 100644 --- a/tools/intel_bios_reader.c +++ b/tools/intel_bios_reader.c @@ -1414,8 +1414,21 @@ enum opt { OPT_ALL_PANELS, OPT_HEXDUMP, OPT_BLOCK, + OPT_USAGE, }; +static void usage(const char *toolname) +{ + fprintf(stderr, "usage: %s", toolname); + fprintf(stderr, " --file=<rom_file>" + " [--devid=<device_id>]" + " [--panel-type=<panel_type>]" + " [--all-panels]" + " [--hexdump]" + " [--block=<block_no>]" + " [--help]\n"); +} + int main(int argc, char **argv) { uint8_t *VBIOS; @@ -1443,6 +1456,7 @@ int main(int argc, char **argv) { "all-panels", no_argument, NULL, OPT_ALL_PANELS }, { "hexdump", no_argument, NULL, OPT_HEXDUMP }, { "block", required_argument, NULL, OPT_BLOCK }, + { "help", no_argument, NULL, OPT_USAGE }, { 0 } }; @@ -1484,7 +1498,9 @@ int main(int argc, char **argv) break; case OPT_END: break; + case OPT_USAGE: /* fall-through */ case OPT_UNKNOWN: + usage(toolname); return EXIT_FAILURE; } } @@ -1497,7 +1513,7 @@ int main(int argc, char **argv) /* for backwards compatibility */ filename = argv[0]; } else { - printf("usage: %s --file=<rom file>\n", toolname); + usage(toolname); return EXIT_FAILURE; } } |