[Buildroot] Buildroot 2013.08.1, Linaro 2013.04 as toolchain, kernel 3.0.101, wakeup from standby issue

Thomas Petazzoni thomas.petazzoni at free-electrons.com
Sun Nov 10 08:48:02 UTC 2013


Dear Stanislav Vlasic,

On Sun, 10 Nov 2013 05:17:28 +0100, Stanislav Vlasic wrote:

> Here are my steps I perform to suspend ARM based device:
> 
> - close all running apps (eg. XBMC)
> - sync command to save all cached data
> - issue mem to /sys/power/state sysfs node
> - after that power indicator led turns off
> 
> That all works just fine.
> 
> After interrupt (IR remote in my case handled by uboot and ARC), kernel
> wakes up, resumes all drivers, puts power led in ON state and ends up with
> unknown_wakeups message.
> 
> Any help or hint would be appreciated :) Android JellyBean 4.2.2 on same
> platform works way it should (it wakes up).

What makes you think this is a Buildroot problem? It seems like a
kernel problem, so I would suggest to contact the people who did the
kernel support for your hardware platform (which you forgot to mention,
BTW).

Best regards,

Thomas
-- 
Thomas Petazzoni, CTO, Free Electrons
Embedded Linux, Kernel and Android engineering
http://free-electrons.com


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