Re: v4.1 to v4.7: regression in tsc2005 driver

Michael Welling
2016-07-17T18:24:59Z

On Sun, Jul 17, 2016 at 07:52:57PM +0200, Pavel Machek wrote:
> Hi!
>
> tsc2005 driver changed input device name, from
>
> drivers/input/touchscreen/tsc2005.c: input_dev->name = "TSC2005
> touchscreen";
>
> to "TSC200X touchscreen". Unfortunately, X seems to propagate that
> name to userspace, where it is needed to be able to do
>
> xinput --set-prop --type=int ...
>
> with the right arguments to calibrate touchscreen. (Touchscreen is
> unusable without calibration).
>
> What to do with that?

The input_dev name could be passed to the common probe function.

http://lxr.free-electrons.com/source/drivers/input/touchscreen/tsc2005.c#L65

It could also be inferred from the bus_type or dev_name.

http://lxr.free-electrons.com/source/drivers/input/touchscreen/tsc200x-core.c#L547

Pick a method and I will provide a patch.

>
> Pavel
> --
> (english) http://www.livejournal.com/~pavelmachek
> (cesky, pictures) http://atrey.karlin.mff.cuni.cz/~pavel/picture/horses/blog.html