On Thursday, April 21, 2016 at 6:26:19 PM UTC-4, William Hermans wrote: > > I can tell you that using kernel 4.1.x > https://www.linux.com/learn/wake-linux-rtc-alarm-clock works. I'm not > sure that rtc wake timer is related to the one you're asking. However, I > can tell you that once the main am335x processor loses power, or the > ability to act from being in sleep mode, the RTC on the processor die will > no longer function correctly. There has been some discussion on these > forums about this in the past, and I do believe there was actually an > errata on this as well. > > I am just trying to put the system in the "mem" sleep/suspend state and have a timer wake the system back up. Using the rtcwake command (and "mem" mode) does work, but when I create a timer with timerfd (instead of using the /dev/rtc0 device directly like rtcwake does) it does not work. It seems like there might be a wake source or something missing.
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