This paper provides a basic model of embedded device driver and a way to implement it.

同时本文给出了嵌入式设备驱动程序设计的基本模型及其简单实现。

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This particular device driver is meant for an embedded system where you may not have much sophisticated debugging environment.

这个设备驱动程序是为一个嵌入式系统开发的，在这种系统上并没有很好的调试环境。

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The driver designed in this paper can support portable storage device and HID device. It is helpful for the developing of other embedded USB host driver.

所设计的驱动程序能够支持移动存储设备和HID设备，对其它嵌入式usb主机驱动的开发有一定的参考意义。

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