On 2/4/2011 12:15 PM, Steve Chen wrote: > On Fri, Feb 4, 2011 at 10:52 AM, Nori, Sekhar <[email protected]> wrote: >> Hi Steve, >> >> On Fri, Feb 04, 2011 at 21:42:41, Steve Chen wrote: >> >>>> rtcwake -s 40 rtc0 >>> rtcwake: /dev/rtc not enabled for wakeup events >> >> I have a feeling rtcwake is looking at the wrong device >> node. Can you try: >> >> $ rtcwake -d /dev/rtc0 -s 20 -m mem >> > > Doh!!. Sekhar, you are right. I did not include the "-d" flag. > After passing the correct parameter to rtcwake, I'm able to wake up > from sleep with NFS rootfs. I'm running the kernel/filesystem from > PSP 03.20.00.14. >
I was wondering if you (or anyone) have numbers for how much power the AM1808 you have is drawing while sleeping? I was able to run the same command as above with an AM1808 module here today, and the power draw I am seeing by the module was still pretty high. About 1/2 normal operation, but still pretty high. Does sleeping to disk / MMC reduce the consumption? Or are there other tricks with the regulators (e.g., allowing them to actually be shut down with the constraints flags) that need to be done? Thanks for any clues. -Mike _______________________________________________ Davinci-linux-open-source mailing list [email protected] http://linux.davincidsp.com/mailman/listinfo/davinci-linux-open-source
