针对OMAP3530处理器，用来测试GPIO的模块程序。这个程序可以申请gpio，为gpio设置中断处理函数等功能。-For the OMAP3530 processor, the program is used to test the GPIO. This procedure can apply gpio, gpio settings for the interrupt handler functions.

在linux下，基于OMAP3530的CPU，GPIO设备驱动之继电器驱动-Based on the OMAP3530 CPU, the GPIO device drivers relay driver under linux