Linux简单字符设备驱动编写方法本示例代码实现了Linux下的一个简单字符设备驱动。由二个文件组成，驱动模块< dev_add.c> 和测试程序< test.c> 。-Linux character device driver writing simple methodThe sample code implements a simple under Linux character device drivers.Composed by two files, the driver module < dev_add.c>　and test procedures < test.c> .