* [Buildroot] Qt5 and touchscreen calibration
@ 2015-10-30 16:55 David Picard
2015-10-30 17:23 ` Arnout Vandecappelle
0 siblings, 1 reply; 4+ messages in thread
From: David Picard @ 2015-10-30 16:55 UTC (permalink / raw)
To: buildroot
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)
>>> 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.
^ permalink raw reply [flat|nested] 4+ messages in thread
* [Buildroot] Qt5 and touchscreen calibration
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
0 siblings, 1 reply; 4+ messages in thread
From: Arnout Vandecappelle @ 2015-10-30 17:23 UTC (permalink / raw)
To: buildroot
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.
>
>
> _______________________________________________
> buildroot mailing list
> buildroot at busybox.net
> http://lists.busybox.net/mailman/listinfo/buildroot
>
--
Arnout Vandecappelle arnout at mind be
Senior Embedded Software Architect +32-16-286500
Essensium/Mind http://www.mind.be
G.Geenslaan 9, 3001 Leuven, Belgium BE 872 984 063 RPR Leuven
LinkedIn profile: http://www.linkedin.com/in/arnoutvandecappelle
GPG fingerprint: 7493 020B C7E3 8618 8DEC 222C 82EB F404 F9AC 0DDF
^ permalink raw reply [flat|nested] 4+ messages in thread
* [Buildroot] Qt5 and touchscreen calibration
2015-10-30 17:23 ` Arnout Vandecappelle
@ 2015-10-30 20:12 ` Peter Seiderer
2015-11-02 7:53 ` David Picard
0 siblings, 1 reply; 4+ messages in thread
From: Peter Seiderer @ 2015-10-30 20:12 UTC (permalink / raw)
To: buildroot
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
> >
>
>
^ permalink raw reply [flat|nested] 4+ messages in thread
* [Buildroot] Qt5 and touchscreen calibration
2015-10-30 20:12 ` Peter Seiderer
@ 2015-11-02 7:53 ` David Picard
0 siblings, 0 replies; 4+ messages in thread
From: David Picard @ 2015-11-02 7:53 UTC (permalink / raw)
To: buildroot
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
>>>
>>
>>
>
^ permalink raw reply [flat|nested] 4+ messages in thread
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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
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