1 files changed, 23 insertions, 0 deletions

diff --git a/util-linux/rtcwake.c b/util-linux/rtcwake.c
index 06ed7eafc..735a29822 100644
--- a/util-linux/rtcwake.c
+++ b/util-linux/rtcwake.c
@@ -23,6 +23,29 @@
  * That flag should not be needed on systems with adjtime support.
  */
 
+//usage:#define rtcwake_trivial_usage
+//usage:       "[-a | -l | -u] [-d DEV] [-m MODE] [-s SEC | -t TIME]"
+//usage:#define rtcwake_full_usage "\n\n"
+//usage:       "Enter a system sleep state until specified wakeup time\n"
+//usage:        IF_LONG_OPTS(
+//usage:     "\n        -a,--auto       Read clock mode from adjtime"
+//usage:     "\n        -l,--local      Clock is set to local time"
+//usage:     "\n        -u,--utc        Clock is set to UTC time"
+//usage:     "\n        -d,--device=DEV Specify the RTC device"
+//usage:     "\n        -m,--mode=MODE  Set the sleep state (default: standby)"
+//usage:     "\n        -s,--seconds=SEC Set the timeout in SEC seconds from now"
+//usage:     "\n        -t,--time=TIME  Set the timeout to TIME seconds from epoch"
+//usage:        )
+//usage:        IF_NOT_LONG_OPTS(
+//usage:     "\n        -a      Read clock mode from adjtime"
+//usage:     "\n        -l      Clock is set to local time"
+//usage:     "\n        -u      Clock is set to UTC time"
+//usage:     "\n        -d DEV  Specify the RTC device"
+//usage:     "\n        -m MODE Set the sleep state (default: standby)"
+//usage:     "\n        -s SEC  Set the timeout in SEC seconds from now"
+//usage:     "\n        -t TIME Set the timeout to TIME seconds from epoch"
+//usage:        )
+
 #include "libbb.h"
 #include "rtc_.h"