2008•Jisuanji gongcheng yu shejiRequires access

Analysis and improvement of USB flash disk driver based on embedded Linux

Zhang Xi-huang

Abstract

As a convenient storage device,USB flash disk is applied to the embedded system based on cutting the USB mass storage driver of Linux,in order to get the simplified driver.The protocol of Linux USB mass storage is analyzed and needless codes are simplified,in order to only support to the storage device based on ATAPI protocol in Bulk-Only transport mode,consequently makes the embedded system much more simpler,and next cuts the USB mass storage driver.The cut USB mass storage driver is planted into the development board of Samsung QT2410E and then succeed.

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Key concepts: USB, Mass storage, Host controller interface, Computer science, USB hub, Operating system, Embedded system, eXtensible Host Controller Interface (xHCI)