I'm working on an ARM-based Linux computer that has enabled a few features of the sysfs power interface. I know how to send it to standby (writing "standby" to /sys/power/state) but I can't find how to acknowledge the wakeup (which I perform though a RTC setting an alarm in /sys/class/rtc/rtc0/wakealarm)
From the kernel docs I thought that I could do it by reading wake_count, but this is all I have available from the sysfs power management:
root@debian:/sys/power# ls -l
0 -rw-r--r-- 1 root root 4.0K 2014-Apr-16 16:58:45 pm_async
0 -rw-r--r-- 1 root root 4.0K 2014-Apr-16 16:58:45 state
Should I compile my kernel with any special configuration? By the way, I'm actually programming in C. is there any alternative to the sysfs interface?
