摘要
针对VxWorks实时操作系统下USB应用广泛,但USB驱动开发难度高等问题,具体分析了VxWorks下USB总线驱动模型的结构及功能,详细说明了其USBD驱动栈。同时,在此USB总线驱动模型的基础上详细介绍了USB字符设备驱动开发过程,全面展示了VxWorks下的USB内部事件调度机制,对于了解和开发USB驱动有很大帮助。
In order to resolve difficulty during USB development on VxWorks real-time operating system, the structure and function of the USB driver module in VxWorks operating system .are analyzed. Then the USBD driver stack is explained in detail. Based on the USB driver module, the USB driver development for character device is introduced, which shows the USB event transfer mechanism roundly. It is very useful for realizing and developing USB driver.
出处
《测控技术》
CSCD
2008年第10期55-57,60,共4页
Measurement & Control Technology
基金
航空基金资助项目(20061353017)
