Linux系统中，设备驱动程序是操作系统内核的重要组成部分，在 与硬件设备之间

建立了标准的抽象接口。通过这个接口，用户可以像处理普通文件一样，对硬件设

备进行打开(open)、关闭(close)、读写(read/write)等操作。通过分析和设计设

备驱动程序，可以深入理解Linux系统和进行系统开发-Linux system, device drivers operating system kernel is an important component, the equipment and hardware standards established between the abstract interface. Through this interface, users can do with ordinary paper, the right hardware for open (open). closure (close), the read-write (read / write) operations. Through the analysis and design of device drivers, in-depth understanding of Linux systems and systems development