嵌入式Linux设备驱动程序研究  

Embedded Linux Device Driver Research

作　　者：李桦[1] 高飞[1] 孙磊[1] 

机构地区：[1]北京理工大学信息与电子学院

出　　处：《微计算机信息》2010年第14期68-70,共3页Control & Automation

摘　　要：本文通过对嵌入式Linux设备管理机制的深入研究,在内核层次上详细分析了驱动程序参数的传递过程,并以此为主线,重点阐述了设备驱动程序的实现机制、工作原理、层次结构和设计方法,最后实现了基于μClinux的字符型设备的可动态加载驱动程序。实际结果表明,掌握设备驱动程序的实现机制及其与系统内核的参数传递过程,可以有效地提高嵌入式Linux设备驱动程序的开发效率,减少出错几率,从而节省了嵌入式产品的开发成本和开发周期。Based on the in-depth research of the embedded device management system,analyse the process of the driver parameters delivery on kernel level particularly.According to this,expound the device driver＇s working principle,structure and design methods especially.Finally realize the drivers of the character-based devices which can be dynamically loaded.Actual result shows that mastering the realization of the device driver mechanism and the process of parameters delivery with kernel can improve the embedded device driver development efficiency and reduce error probability effectively,thus saving the development cost and development cycle of embedded products.

关 键 词：嵌入式LINUX 设备驱动程序 系统调用 内核空间 用户空间 

分 类 号：TP316[自动化与计算机技术—计算机软件与理论]