Touchscreen calibration on linuxfb embedded application

[luca]

Hi all,
I have a BeagleBone Black board with a BB-View touchscreen display.
Now I have Qt 5.3 on my board and I can build and run Qt applications this way:
@
export QT_QPA_PLATFORM=linuxfb:size=480x272
./styleexample -plugin evdevtouch
@

The problem is that the touchscreen pointer is not very accurate.
I know that for Xorg there is xinput_calibrator but it doesn't works for non X systems.

Is there a way to get TS more accurate in linuxfb mode?

thanks

[luca]

I actually found a workaround:
@
X &
./styleexample -platform xcb &
@

This way I have a calibrated touchscreen (I calibrated it before with xinput_calibrator).

But I'd like to have the TS working in linuxfb platform...

[agocs]

If this is a resistive, single touch only touchscreen, you could try using the tslib plugin instead of evdevtouch.

[luca]

[quote author="agocs" date="1403705071"]If this is a resistive, single touch only touchscreen, you could try using the tslib plugin instead of evdevtouch.
[/quote]

Running apps with tslib plugin the TS doesn't works... I don't know why.