[PATCH] xf86ActivateDevice(): Add "Device Node" property to input devices
Peter Korsgaard
jacmet at sunsite.dk
Wed May 5 04:56:46 PDT 2010
>>>>> "Julien" == Julien Cristau <jcristau at debian.org> writes:
Hi,
>> Add "Device Node" xinput property containing the device node path to
>> all input devices with a device property. This is useful to figure out
>> the relation between xinput ids and kernel devices.
>>
Julien> Why is this something we should expose to clients? They may
Julien> not be on the same machine anyway, and typically the device
Julien> path is not stable, so
It was requested by Peter Hutterer, see:
http://thread.gmane.org/gmane.comp.freedesktop.xorg.devel/7477/focus=7539
Julien> it seems to me clients can't do much with that information?
I don't personally have a need for this. What I do need is a stable
identifier (which xinput ids aren't) to be able to apply per-device
transformation properties for multihead touchscreen setups - E.G. the
EVIOCGPHYS stuff in the link above.
For the use case of this, see my earlier patch:
http://thread.gmane.org/gmane.comp.freedesktop.xorg.devel/7302
--
Bye, Peter Korsgaard
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