简单的按键linux驱动程序，里面有两种模式，一种是扫描模式，一种是中断模式。中断模式是按键驱动led-Simple key linux driver, there are two modes, a scan mode, one is the interrupt mode. The interrupt mode key driver led

几个linux驱动程序 分别是led驱动、按键驱动、温度传感器驱动、蜂鸣器驱动、加速度驱动-Several linux drivers are led drive, key drive, the drive temperature sensor, buzzer driver, driving acceleration