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From: David Picard <davepiq@yahoo.fr>
To: buildroot@busybox.net
Subject: [Buildroot] Qt5 and touchscreen calibration
Date: Mon, 2 Nov 2015 08:53:51 +0100	[thread overview]
Message-ID: <5637168F.7000400@yahoo.fr> (raw)
In-Reply-To: <20151030211218.6c801173@gmx.net>

Hello,

The 'rotate' trick did it.

Thanks,
David.

Le 30/10/2015 21:12, Peter Seiderer a ?crit :
> Hello David, Arnout,
>
> On Fri, 30 Oct 2015 18:23:02 +0100, Arnout Vandecappelle <arnout@mind.be> wrote:
>
>> 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
>
> The following
>
> 	$ QT_QPA_EVDEV_TOUCHSCREEN_PARAMETERS='rotate=270' /usr/lib/qt/examples/touch/fingerpaint/fingerpaint -platform
> linuxfb:fb=/dev/fb1
>
> worked for me to get x/y right, see [1] for Qt5 parameters.
>
> Regards,
> Peter
>
> [1] http://doc.qt.io/qt-5/embedded-linux.html
>
>>> 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.
>>>
>>>
>>> _______________________________________________
>>> buildroot mailing list
>>> buildroot at busybox.net
>>> http://lists.busybox.net/mailman/listinfo/buildroot
>>>
>>
>>
>

      reply	other threads:[~2015-11-02  7:53 UTC|newest]

Thread overview: 4+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2015-10-30 16:55 [Buildroot] Qt5 and touchscreen calibration David Picard
2015-10-30 17:23 ` Arnout Vandecappelle
2015-10-30 20:12   ` Peter Seiderer
2015-11-02  7:53     ` David Picard [this message]

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