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介绍了以太网MAC层的工作原理,分析Linux网络驱动程序体系结构的基础上,结合Linux2.4.20内核在OURS2410嵌入式开发板上编写DM9000A网卡驱动程序的实例,重点讨论了嵌入式Linux网络驱动程序的实现原理,并详细的分析了程序代码的框架结构和测试方法。
This paper introduces the working principle of Ethernet MAC layer and analyzes the architecture of Linux network driver. Based on the Linux2.4.20 kernel, an example of DM9000A NIC driver written on OURS2410 embedded development board is introduced. The embedded Linux network driver The principle of the implementation, and a detailed analysis of the framework of the program code and test methods.