Following is my touchscreen calibration information. The bottom right point has a big Y value, so the four points construct a trapezium. After calibration, the touchscreen still isn't accurate. If I draw a square with the draw function of ts_test, it will give me a trapezium. Is it because there is some problems with my touchscreen ? or because the calibration algorithm is imperfect ? Thanks Stanley. root@localhost:/root> ts_calibrate xres = 240, yres = 320 Took 33 samples... Top left : X = 2492 Y = 122 Took 26 samples... Top right : X = 2221 Y = 336 Took 26 samples... Bot right : X = 2728 Y = 740 Took 27 samples... Bot left : X = 2789 Y = 235 Took 22 samples... Center : X = 2568 Y = 335 532.714355 -0.200746 0.285931 -908.327820 0.396201 0.153282 Calibration constants: 34911968 -13156 18738 -59528172 25965 10045 65536 -- To unsubscribe from this list: send the line "unsubscribe linux-omap" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
