摘要： 该文从I/O驱动软件的设计目标开始，论述了I/O驱动软件的结构、实现方法和通常的设备划分种类。从而得出要设计一个好的I/O驱动软件．必须从应用系统的需求出发，根据实际的应用来设计，同时需要软/硬开发人员的密切合作。

关键词: I/O驱动软件, 设计, 嵌入式

Abstract: This paper discusses the purpose of I/O driver,the architheture of I/O driver,two ways of implementation and how to class device. From the discussion,the conclusion is drawn that it is dependent on the requirement of the real application system and must cooperate between software developer and hardware developer to design a good I/O driver.

中图分类号: 

• TP316