The hardware patch that Vladan suggests in the other thread relates to power supply to the LCD doughter card and not to touch only. You need that short circuit to provide power to the iMX28 LCD daughter card in QSB REV B.
The patch file attached by Shlomo Kut is a simple pressure emulation workaround at driver level that makes z coordinate returned by the touch driver become 1 when there is a valid input. Calibration software waits for this coordinate with a positive value to work properly, so I suggest you to try this patch. It's working here in pure Linux, but it should work fine in Android as well.
As for R151, make sure you have it populated in your QSB. It's a zero Ohm resistor on the bottom side of the board, near the Power Jack (J1), and it's required to provide a reference voltage source for touch screen operations.
Best regards.
Kirill Danilenko said:
If I add in uboot parameter bootargs 'calibration' I have black screen with white plus, calibration mode. But touch events do not detect, so how can create calibration file to make touch on, if my touch does not work?) When I was surfing the web, I faced with one thread in this forum http://imxcommunity.org/group/imx53quickstartboard/forum/topics/sei... , at the end of discussion Shlomo Kut add LCD patch file. Does anybody use it? Or maybe there is some problems in hardware ? Like the same hardware patch from that thread.
Thanks for replies again! Any answer will help!
