[Buildroot] Qt5 and touchscreen calibration

[Arnout Vandecappelle]

On 30-10-15 17:55, David Picard wrote:
> Hello,
> 
> 
> I got my touchscreen working perfectly with ts_test. Many thanks to Peter
> Seiderer !
> 
> But the thing is that my Qt5 app does not grab the touchscreen properly : x and
> y axis are switched. I did enable the tslib option under Qt5 in menuconfig. Is
> there some magic command line option to pass to the application ? I tried this :
> 
> $ myapp -platform linuxfb:fb=/dev/fb1 -plugin tslib
> ts_open() failed (No such file or directory)

 Did you export QT_QPA_EVDEV_TOUCHSCREEN_PARAMETERS=/dev/input/event0 (but
replace with the correct device of course)?

 Or hang on, for tslib it's TSLIB_TSDEVICE that you have to set.


 Regards,
 Arnout

> 
>>>> the app shows up, but TS still messed up.
> 
> My config :
> - Raspberry Pi B+ and Adafruit 2.8" PiTFT w/ cap touch.
> - Buildroot 2015.08.1
> - Qt5 w/ tslib support enabled (BR2_PACKAGE_QT5BASE_TSLIB=y).
> 
> 
> Regards,
> David.
> 
> 
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-- 
Arnout Vandecappelle                          arnout at mind be
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