操作文件的函数的说明和代码,包含了所有文件操作的功能,适合在windows和unix下运行。-operation as a function of the document description and code, containing all the file manipulation functions, suitable for the windows and unix running.
pxa270下利用mmap函数实现LED控制的函数,直接在用户层操作具体的IO口来控制LED,推荐!-pxa270 next LED control function implementation using mmap functions operate directly on the user level of specific IO port to control the LED, recommended!