电容触摸屏初探

触摸芯片
瀚瑞
http://www.pixcir.com.cn/
汇顶
http://www.goodix.com/

http://www.sztctd.com/about/about85.shtml



tiny210配置的电容屏芯片
goodix GT801
http://www.goodix.com/technical-support/download/
http://www.arm9home.net/read.php?tid=20239
http://www.arm9home.net/read.php?tid-24538.html

goodix触摸屏驱动以模块形式提供，如下，在板子的文件系统中搜索

/ # find / -name "*goodix*"
/sys/module/goodix_touch
/system/lib/modules/2.6.35.7-FriendlyARM/kernel/drivers/input/touchscreen/goodix_touch.ko

/ # cat /etc/init.mini210.sh 
..
# Audio, video, input
modprobe snd-soc-mini210-wm8960
modprobe ov9650
modprobe tvp5150_tiny210
modprobe goodix_touch
..

内核选项
Device Drivers  --->Input device support  --->[*]   Touchscreens  ---> <*>   Goodix GT80X multi-touch driver   
没有源码
drivers/input/touchscreen/goodix_touch.c