Hello,
I am using beaglebone and i am trying to enable the RTC wakeup so the the processor will wakeup after like 10 minutes of going to sleep.
I tried the command
rtcwake -d /dev/rtc0 -m mem -s XXX
but i won't work and complain about there is no "wakeup" file in the rtc0 directory.
i tried to write C program the uses "linux/rtc.h" , and i am setting the wakeup time without any errors , but it is ineffective and the processor will stay sleep
please help me out !
P.S.1: i am using this command to go to sleep ; echo mem > /sys/power/state
P.S.2: i browsed the sysfs files , and there is no alarmwake file in the directory " /sys/class/rtc/rtc0" which is unusual !