Hi there, I have ported (am porting) Gingerbread to my device and I made a custom touchscreen 5-point calibration method. This is my port: http://sourceforge.net/p/ipaq214android/android/ci/c01dc0839a8a86a74959f197ee99433da6805ead/tree/
==Relevant files== InputReader.cpp.diff InputReader.h.diff ipaq214/wm97xx-touchscreen.idc Files `InputReader.*.diff` are modifications to the framework to allow using the 5-point calibration method by the idc file. For the idc file you need to use the correct name. Some info is here: http://source.android.com/tech/input/input-device-configuration-files.html Note that lines 26-32 in `wm97xx-touchscreen.idc` is applicable only for patched framework. The idc file is copied to system/usr/idc in device.mk. In order to use the calibration, you need to have an existing Linux distribution that has TSLib built with it, calibrate it once, and get the /etc/pointercal file after calibration. Then divide all the numbers by the last number (should be 65536?) and replace line 27-32 of the idc file by the numbers. The reason for me to use the idc file instead of etc/pointercal is that I wanted to follow the standard. Obviously, using this method isn't a really good way as calibration cannot be done dynamically. For me, I used the "Pointer Location" in "Dev Tools" (ENG build) to test the touchscreen pointer location. I hope this helps. Good luck, Alvin Wong On 4月5日, 下午11�r58分, 李晖 <[email protected]> wrote: > hi, all > I am porting android 2.3.7 to a ARM Cortex-A8 board, currently, the > system can boot up, but the touch screen can not work correctly, when I > slide left on the screen, the notification view show up, slide right, the > notification view gone, slide up, the screen goes left, slide down, the > screen goes right, did anyone came across this problem? > BTW, I searched in the Internet and found that to calibrate the > touchscreen, we can change the value in the system/etc/pointercal file > which read by > frameworks/base/services/java/com/android/services/InputDevice.java file, > but there is no such file in the gingerbread source tree as the calibrate > method has changed, did anyone knows how to calibrate the touch screen in > android 2.3, thanks in advance! > > andy > Best Regards > ------------------------------------------------------------------- > ------------------------------------------------------------------- > 北京航空航天大学大学嵌入式系统实验室 > 新主楼G座1028室 > 李晖 > MSN:[email protected] -- unsubscribe: [email protected] website: http://groups.google.com/group/android-porting
