eGalax touchscreen calibration

[Markamc]

Great news, not ideal but run once it gave me a more accurate solution.

At the moment, the values given by the TS float too much for it to stay within the click-confines values in XBMC. This is because of the sensitivity of the TS. When I recompiled XBMC , i could select and single click when an option was high-lighted. I got tied of recompiling XBMC and didn't request a code change since it would make the mouse less accurate.

Since then, I've tried many things, best one so far was 'python-uinputmapper'. It re-maps and input event to another user-input event. I got it to grab the TS device and apply the calibrations and generate another event which XBMC uses. This is handy since I could use the pointer calib file directly and also add a float and fuzz values fr the TS to stop the jitter effect. I also have nearly found a way to monitor TOUCH duration to inject an BTN_RIGHT event, which would be handy!

Just looking at another solution too, evmapd, another mapping daemon doing a similar thing. My knowledge of python and C are limited, but really enjoying having a go. Prior to getting the Pi, I'd never used linux before.

I'll keep you posted if I get anywhere, you never know Gotham might provide better support

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(12th Jun, 2013 06:19 AM)brantje Wrote:  Got it working!!!

Code:

Center : X =  987 Y =  983
-51.846924 0.699852 0.001922
-57.274414 -0.003586 0.418633

Only the x as is messed up so i need to tweak that value abit.
If i touch at most left, the cursor is at x 54-60 orso.
At most right cursor is at 1202

My almost working config:

Code:

calib_x_d=1310;calib_x_fact=-0.637;calib_y_d=778;calib_y_fact=-0.418633;swap_axes=0;

Dou you still have double click issue's? Because i do have to tap a few times before it reacts.

Just checking? did you see the crosses to select, I ended up changing the code to move them further into the centre before compilation to avoid having to remove my screen bezel, although I can use it with overscan, it strill works and reports the effective screen resolution