应用层建立event,传入驱动，并等待事件，驱动中检测到事件被触发立即通知应用层，应用层收到消息，进行相应处理。ansi c编写，适合驱动新手使用，实现驱动与应用层的通信，-application layer established event, came to drive, and wait for the incident, Drivers were detected incident was triggered immediately notify the application laye