* Dmitry Torokhov | 2008-04-25 14:56:24 [-0400]: >> The code: >> | /* Post events >> | * BTN_TOUCH has to be first as mousedev relies on it when doing >> | * absolute -> relative conversion >> | */ >> | if (hw.z > 30) input_report_key(dev, BTN_TOUCH, 1); >> | if (hw.z < 25) input_report_key(dev, BTN_TOUCH, 0); >> >> Nothing happens if z is lets say 27. > >Right, you want to have hysteresis to avoid jitter. Aha, good to know. >> How do I do fine tunning with >> evdev? This looks like nothing has any influence on 30 & 25. > >Synaptics native driver ignores BTN_TOUCH and goes strictly by >ABS_PRESSURE. The same would be valid for evdev/tslib combo on >UCB1400. BTN_TOUCH is for mousedev (and similar dumb consumers) >benefit only. Oh okey. Now I have the picture. I was going to try mice interface with qtopia once everything is working (what could take few days). It looked on the first shot like I could use the bare mice interface without tslib once I get calibration working (right now I thing that it could be easily solved with proper max/min x & y values). If this is not is not working than I would have get tslib working what would make the BTN_TOUCH thing useless. >Dmitry Sebastian -- To unsubscribe from this list: send the line "unsubscribe linux-input" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
