嵌入式Linux下USB主控制器驱动设计

摘要

USB(Universal Serial Bus) with the features of supporting hot, high speed data transmission and easy to expand, becomes mainstream application now. This paper introduces the USB system bus and USB driver module of the Linux system. It discusses on the USB host controller driver design and implementation based on OHCI protocol in the Samsung S3C2440 chip.%USB(通用串行通信总线)因其自身支持热插拔、高速数据传输和易于扩展的特点,使其成为了当前主流的应用总线.文中介绍了USB的系统总线和Linux系统下USB驱动模块.论述在三星S3C2440芯片上基于OHCI协议的USB主控制器驱动程序的设计方法和实现.