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| author | Yu Watanabe <watanabe.yu+github@gmail.com> | 2019-06-28 21:03:06 +0200 |
|---|---|---|
| committer | Yu Watanabe <watanabe.yu+github@gmail.com> | 2019-06-28 21:10:14 +0200 |
| commit | 6d22bd87f0d9505721dfa0ec5ae94f39a1691526 (patch) | |
| tree | 8a9902298772a257d738cbda71b2b6761477e5eb /src/udev/udevadm-trigger.c | |
| parent | sd-device: introduce dump_device_action_table() (diff) | |
| download | systemd-6d22bd87f0d9505721dfa0ec5ae94f39a1691526.tar.xz systemd-6d22bd87f0d9505721dfa0ec5ae94f39a1691526.zip | |
udevadm: support special value 'help' for --action option
Diffstat (limited to 'src/udev/udevadm-trigger.c')
| -rw-r--r-- | src/udev/udevadm-trigger.c | 6 |
1 files changed, 5 insertions, 1 deletions
diff --git a/src/udev/udevadm-trigger.c b/src/udev/udevadm-trigger.c index f14010a2d0..77d95e513f 100644 --- a/src/udev/udevadm-trigger.c +++ b/src/udev/udevadm-trigger.c @@ -115,7 +115,7 @@ static int help(void) { " -t --type= Type of events to trigger\n" " devices sysfs devices (default)\n" " subsystems sysfs subsystems and drivers\n" - " -c --action=ACTION Event action value, default is \"change\"\n" + " -c --action=ACTION|help Event action value, default is \"change\"\n" " -s --subsystem-match=SUBSYSTEM Trigger devices from a matching subsystem\n" " -S --subsystem-nomatch=SUBSYSTEM Exclude devices from a matching subsystem\n" " -a --attr-match=FILE[=VALUE] Trigger devices with a matching attribute\n" @@ -205,6 +205,10 @@ int trigger_main(int argc, char *argv[], void *userdata) { return log_error_errno(SYNTHETIC_ERRNO(EINVAL), "Unknown type --type=%s", optarg); break; case 'c': + if (streq(optarg, "help")) { + dump_device_action_table(); + return 0; + } if (device_action_from_string(optarg) < 0) return log_error_errno(SYNTHETIC_ERRNO(EINVAL), "Unknown action '%s'", optarg); |