Other than rtc, what other wake up source from suspend to RAM can I use whithout upgrading driver code?
I tried to enable serial wake up by "echo enabled > /sys/class/tty/ttyS2/power/wakeup", I see I can set the file to enanled but it didn't work why??
I'm working with dsplink_linux_1_65_00_02 on omap l138 evm and Linux (Texas distribution).
Thank you
