Evdev touchscreen calibration?

[Søren Hauberg]

2009/7/22 Florian Echtler <floe at butterbrot.org>:
> I've recently written an input event driver for a touchscreen, and it's
> working out-of-the box with the evdev driver. However, the scaling is a
> bit off, so I'd like to do a four-point calibration and set the "Evdev
> Axis Calibration" property accordingly. Is there a tool which does that?
> I've only found ts_calibrate so far, which is just for framebuffer
> devices.

I wrote some code a while back that should compute the calibration
parameters, and it's just running inside X (I'm attaching the code).
It doesn't actually set the parameters as that wasn't supported at the
time, but you should be able to do this in run-time these days.

Søren
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