Linux环境下，用输入子系统结构写的按键驱动程序，检测到按键K1/K2/K3/K4中断后再终端显示被按下的按键。-Linux environment, with the the input subsystem structure written key driver detected key K1/K2/K3/K4 interrupt after terminal to display the button is pressed.

实现基于atm91sam的linux嵌入式操作的液晶显示器显示和按键输入数据的程序。-Based atm91sam of linux embedded operating a liquid crystal display and key input data program.