Hi, is just that i've been having a problem with the calibration of an eGalax touchscreen with tslib, i already ported tslib for Android and patched it with the patch for eGalax USB touchscreen, but when i execute ts_calibrate on the shell i get the following result:
shell@android:~# ts_calibrate
xres = 1280, yres = 720
Took 41 samples…
Top left : X = 0 Y = 0
Took 27 samples…
Top right : X = 0 Y = 0
Took 16 samples…
Bot right : X = 0 Y = 0
Took 22 samples…
Bot left : X = 0 Y = 0
Took 10 samples…
Center : X = 0 Y = 0
ts_calibrate: determinant is too small — 0.000000
Calibration failed.
the touchscreen is an eGalax touchscreen, the O.S. is Android ICS and the target is a Pandaboard A3.
i don't know what the problem is, if someone could help me it would be great, thanks in advanced.