[Letux-kernel] compile problems

H. Nikolaus Schaller hns at goldelico.com
Tue Jul 24 21:39:49 CEST 2018


> Am 24.07.2018 um 21:33 schrieb Andreas Kemnade <andreas at kemnade.info>:
> 
> On Tue, 24 Jul 2018 19:22:46 +0200
> "H. Nikolaus Schaller" <hns at goldelico.com> wrote:
> 
> 
>> Hm. What is /lib/udev/accelerometer ?
>> 
>> Never heard of it.
> 
> me, too.
> 
>> But according to
>> 
>> https://github.com/lu-zero/udev/blob/master/src/accelerometer/accelerometer.c
>> 
>> it seems to be a daemon that tries to handle device orientation. I didn't know
>> that this exists. BTW: if such a daemon is "standard" this is a good argument
>> why we need such an iio-input-bridge in the kernel...
>> 
> well, it seems to be not available anymore in stretch, only in
> jessie... So the argument seems to be not so strong anymore.

Ok, would have been too nice :)

> 
>>> 
>>> That is from
>>> 
>>> Package: udev
>>> Version: 215-17+deb8u7
>>> 
>>> Ok, renaming it gives a fast boot.
>>> Then I run evtest and my cpu is busy again. And the oops is there.
>> 
>> Ok, at least this should make debugging easier if you can boot and have
>> a clear trigger for the problem.
>> 
> indeed.

BTW: did you see the kernel hickups also with evtest on the accelerometer?

Maybe /lib/udev/accelerometer is slightly incompatible with kernel API
and the iio-bridge doesn't catch such situations properly?

BR,
Nikolaus

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