说明： 触摸屏驱动程序源码分析
以mini2440为例，详尽分析触摸屏驱动源码，分析触摸屏工作原理。非常不错的学习和参考价值 (touch screen driver source code analysis.
base on Mini2440 a detailed analysis of the touch screen
driver source code, analysis of the touch screen works.
Good learning and reference value)
