USB通信驱动程序设计

讨论了电力系统故障仿真测试装置中USB通信驱动程序的开发.在视窗操作系统中,USB设备驱动程序根据WDM(视窗驱动程序模型)设计.在WDM驱动程序模型中,每个硬件设备至少有两个驱动程序,其中一个驱动程序称为功能驱动程序,通常就是硬件设备驱动程序.它了解使硬件工作的所有细节,负责初始化I/O操作,处理I/O操作完成时所带来的中断事件,为用户提供一种适合设备的控制方式;另一个由操作系统提供的驱动程序称为总线驱动程序,它负责管理硬件与计算机的连接.

USB Communication Driver Design

The development of USB function driver used in power system faults simulation test device is discussed in this paper. In Windows operating system, USB device driver is designed according to the model WDM(Windows Driver Model). In WDM every hard device has two drivers at least. One is called function driver, usually the hard device driver. This driver knows all details of running the hardware, with responsibility for initializing I/O operation, processes the interruption events which happen when the I/O operation is completed, provides a kind of control mode adaptive to devices. Another driver coming from operating system is called bus driver, which takes charge of the connection between hard wares and computer.