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.

驱动patch linux rtl8192eu-driver for linux rtl8192eu