说明：  基于linux和arm s3c2410的键盘驱动程序，动态加载内核模块，当按键按下，触发外部中断，通过spi和中断管脚，将键盘对应值在测试程序中显示。
(Based on linux and arm s3c2410 keyboard driver, dynamically loaded kernel module, when the button is depressed, trigger external interrupt through the spi and interrupt pin, the corresponding value of the keyboard shown in the test procedure.)