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Bug#798102: ams: Lots of kworker activity after wake from hibernate on Powerbook



Hello Dan and Mathieu

On 18.04.2016 18:17, Michael Hanselmann wrote:
> Fortunately I still have two devices with the two variants of the
> sensor. I'm not able to look into this in more detail before early May,
> but then I will try to spin up the hardware and reproduce the issue.

I spent an afternoon trying to debug this issue on a PowerBook5,8 with
Debian Jessie and did not succeed. Suspend doesn't work at all and
hibernation seldomly works, with both Linux 3.16.7-ckt25-2 and
4.5.1-1~bpo8+1. I didn't have more time to look into the actual issue
with the ams driver.

What I can confirm, however, is that the sensor's values can be read
from /sys/devices/platform/ams/current. “jstest” from the joystick
package did not work as it seems to be incompatible with the kernel
interface.

I'll be happy to review any patches, but can't be of much more help at
this time, unfortunately. I've noticed that I'm still listed as the
driver's maintainer and will send a patch to mark it orphaned soon.

Michael

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