Re: [PATCH 2/2] elantech: Report multitouch with proper ABS_MT messages

[Henrik Rydberg <rydberg@euromail.se>]

Hennerich, Michael wrote:
> Henrik Rydberg wrote on 2010-05-05:
>> Éric Piel wrote:
>>> BTW, does anyone know a graphical app which reads the MT events from a
>>> /dev/input/eventX device and displays them as points in a window? That
>>> would be rather helpful to reverse-engineer/debug multitouch
>> hardwares.
>>
>> Something like fingermgmt in OSX? Not to my knowledge. The touchd
>> project includes some graphics via python, but is not based on MT
>> events. Maybe our friends at ENAC has something cooking?
>>
>> Henrik
>>
> 
> I've been playing with Benjamin's xf86-input-evdev multitouch-subdevs work.
> http://cgit.freedesktop.org/~tissoire/xf86-input-evdev/log/?h=multitouch-subdevs
> 
> Its supports finger tracking ID and you can control multiple pointers on your X.
> What's currently lacking is that xf86-input-evdev doesn't generate click events (something like a LEFT CLICK) for touches.
> 
> What also supports Linux MT events is Android Éclair
> http://lukehutch.wordpress.com/2010/01/06/my-multi-touch-code-ported-to-eclair/
> 
> It Uses:
> ABS_MT_POSITION_X
> ABS_MT_POSITION_Y
> ABS_MT_TOUCH_MAJOR
> ABS_MT_WIDTH_MAJOR
> 
> Without ABS_MT_TRACKING_ID.
> 
> Luke Hutchison wrote some basic MT demo applications, such as mtvisualizer.apk.
> http://lukehutch.wordpress.com/2009/01/25/get-multi-touch-support-on-your-t-mobile-g1-today/

Thanks for the update on MT demos!

Henrik

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