一个在友善mini2440板子上控制led的驱动程序和应用程序，通过混杂设备模型实现，通过完整的ioctl设备方法实现规则实现，友善之臂提供的源码没有利用完整的ioctl实现规则,这里的代码多了ioctl命令定义，ioctl命令检查。在应用程序中多了一个获得led状态的功能。里面附代编译好的模块和程序，可直接加载到mini2440板子上进行实验。-A control board in a friendly mini2440 led drivers and applications, through the hybrid device model implementation, through the complete rules of ioctl device methods to achieve implementation of the arms provide a friendly source did not make use ioctl to achieve complete rules and more code here ioctl command defined, ioctl command to check. In the application of a gain led many state functions.