2010年12月12日
40、总结IRP,handling IRPs,Part II
摘要： you must understand the differences between a driver-created synchronous input/output request packet (IRP) and an asynchronous request.Synchronous (Threaded) IRPAsynchronous (Non-Threaded) IRPCreated by using IoBuildSynchronousFsdRequest or IoBuildDeviceIoControlRequest.Created by using IoBuildAsync 阅读全文
posted @ 2010-12-12 14:34 浪里飞 阅读(1087) 评论(0) 推荐(0)
39、总结IRP，Forward IRP,Part I,all two parts
摘要： An IRP completion routine can return either STATUS_MORE_PROCESSING_REQUIRED or STATUS_SUCCESS.The I/O manager uses the following rules when it examines the status: · If the status is STATUS_MORE_PROCESSING_REQUIRED, stop completing the IRP, leave the stack location unchanged and return.· If the stat 阅读全文
posted @ 2010-12-12 13:52 浪里飞 阅读(862) 评论(0) 推荐(0)
38、其它设备驱动
摘要： 关于RS-232,485等系列的驱动编写，类似于USB等，见[1]。 摄像头驱动程序 WDM摄像头驱动程序分两部分，一部分是类驱动（Class Driver）程序，由MS提供，提供了标准接口，一部分是小驱动(Mini Driver)程序，用户编写。 WDM中，Mini Driver首先将自己注册给Class Driver，Class Driver拥有设备对象，而Mini Driver不用创建设备对... 阅读全文
posted @ 2010-12-12 00:07 浪里飞 阅读(881) 评论(0) 推荐(0)