how to enable android touchscreen on beagle board xm

For information about interfacing LCD/touchscreen onto beagleboard, we suggest you look around at the beagleboard community site www.beagleboard.org

Hi Pankaj Bharadiya,

 Thanks for your reply! I have make my touchscreen work by modify u-boot.bin and kenel

Thanks,

jason  

Hi jason liu81336 can u send me what all the modifications u did in u-boot.bin and in kernel. I m also trying to

enable touch screen on beagleboard extention lcd panel, but not working properly. i tried some modifications in

board-omap3beagle.c n its working partially , means if press one side on screen in the sense it will sense opposite side

of the board.

Thanks in advance

Rohit kumar.

Hi Rohit,

Please see below porting guide for touch screen porting and calibration method.

http://processors.wiki.ti.com/index.php/TI-Android-GingerBread-2.3.4-DevKit-2.1_PortingGuides#Touchscreen

I hope this helps.

Regards,

Pankaj Bharadiya

hi Rohit kumar

you should modify the file knrnel/drivers/input/touchscreen/ads7846.c to make your touch screen work properly!

I comment  the 137 、144、615、616、617、620 lines in ads7846.c 


Thanks for regards 
jason_liu

hi jason liu81336,

I do follow but the line seem to be wrong?

137        ifdef CONFIG_MACH_OMAP3EVM

144        #endif

615            ts->pendown = 1;   
616            dev_vdbg(&ts->spi->dev, "DOWN\n");   
617        }
620            swap(x, y);

Can you give me more detail about this?

Thank you

Dung Tx