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本文介绍了基于Intel PXA255与ARM-Linux的嵌入式系统下的USB移动存储器设备的设计,对PXA255内嵌的USB设备模块的Linux驱动程序结构进行了详细分析,通过Linux下MTD的块设备与USB Mass Storage Class协议实现了在该系统上的USB移动存储器。
This paper introduces the design of USB removable memory device in embedded system based on Intel PXA255 and ARM-Linux, and analyzes the structure of Linux driver in USB device module embedded in PXA255. Through the MTD block device in Linux and USB The Mass Storage Class protocol implements USB removable storage on this system.