USB device driver is a reliable guarantee for USB device function.

USB驱动程序是实现USB设备功能的可靠保证。

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Specially, it describes the key technology USB communication realization, which includes USB firmware develop and USB device driver develop.

尤其对有关usb通信的实现部分进行了详细地论述，其中包括USB固件程序开发与usb设备驱动程序开发。

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Then, emphasize the development and design of USB device, among them include primarily; The design of USB hardware, the development of the firmware, the development of USB device driver.

然后，着重介绍了USB设备的设计和开发，其中主要包括：USB硬件设计，固件程序的开发，USB设备驱动程序的开发。

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