嵌入式Linux下USB驱动程序的研究与开发论文.doc

毕业设计(论文) 设计论文题目： 学生姓名： 学生学号： 专业班级： 学院名称： 指导老师： 学院院长： 年 5月 25  嵌入式Linux下USB驱动程序的研究与开发 50%左右的项目选择源代码开放的Linux作为嵌入式操作系统。但嵌入式Linux操作系统仍然没有做到在硬件配置上的即插即用。 通用串行总线(USB)是一种高传输速率的串行接口总线, 综合了一个多平台标准，其低成本,兼容性强,可连接大量的外部设备,融合先进的功能等优点,使其在嵌入式系统领域得到了广泛的应用。因此，研究和开发嵌入式Linux系统下的USB设备驱动程序就具有很好的应用价值。 本文首先介绍了嵌入式开发的基础知识，包括Linux环境下的makefile程序编译，目标机与宿主机的交叉编译环境的建立以及交叉编译的步骤， USB的系统组成、传输方式以及嵌入式Linux下设备驱动程序的开发模式，最后针对JXARM-2410平台，具体实现了一个USB设备驱动程序, 通过模块加载，表明该USB设备驱动程序能够实现对U盘的挂接，读取U盘中的数据。 关键词：Linux； 源代码开放； 嵌入式； 即插即用； USB驱动 Research and development of USB drivers under Embedded Linux Abstract Embedded System is a rapidly developing area; currently about 50 percent of Embedded System projects choose the open-source Linux as the embedded operating system. However, Embedded Linux operating system hasn’t solved the problem on the hardware configuration of plug-and-play yet. Universal Serial Bus (USB) is a high-speed serial interface bus, a comprehension of multi-platform standards. Its low cost, compatibility，the ability of connecting a large number of external equipments simultaneously and the integration of advanced functions，made Linux widely used in Embedded System areas. Therefore, it is of good value to research and develop the USB device driver under Embedded Linux. This paper introduces the knowledge of develop USB device drive under embedded Linux environment, including the compiler procedures using makefile tools, as well as the steps of establishing a cross-compiler environment. It also introduces USB transmission and the development model of embedded Linux device driver. Finally, a concrete realization of the USB device driver was made, which was loaded onto JXARM-2410 platform through module loading, showing that the USB device driver can achieve certain tasks such as articulated U, read U disk data. Keyword: Linux；plug-and-play；Open-SourceEmbedded；USB Driver 目 录 1 引言 1 1.1 嵌入式系统的发展 1 1 1.3 课题背景及目的 2 2 基础知识 3 2.1 ARM简介 3 2.2 Linux下程序的编译：makefile 3 2.2.1 akefil