ISSN: 2250-3005 - ijcer

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International Journal Of Computational Engineering Research (ijceronline.com) Vol. 2 Issue. 8Figure 2.Interrupt handling flowchart6. DRIVER TESTDriver is only provided interface between kernel and user. To use the device, not only to install the driver,but also must write an application to use it.After the network driver is designed, the kernel module can be compiled, and the custom kernel module as part ofthe system source code is compiled a new system.A. Configuring The KernelIn Linux2.6 kernel, want to compile the kernel module, first it is necessary to configure and construct properlykernel source tree in / usr / src, that is, to extract the need kernel source code to / usr / src /, and to use thecommand „make menuconfig‟or „make gconfig‟ configure the kernel under the main directory of kernel source(Here is / usr/src/linux-2.6.18.3), then using the „make all‟ to compile the kernel completely.B. Take CS8900A NIC driver for example, introduce how to compile network device driver into the kernel.z To create a new directory cs8900a under the directory „drivers‟ of system source code tree;z To copy cs8900a.c and cs8900a.h to drivers/cs890a directory;z To compile „Makefile‟ file under drivers/cs890a directory;#Makefile for CS8900A network Driverobj -$(CONFIG_DRIVER_CS8900A) +=cs8900a.oz To compile „Kconfig‟ file under drivers/cs890a directory;#Just for CS8900A network devicemenu "CS8900A network device support"config DRIVER_CS8900A tristate "CS8900A support" This is a network driver module fo r CS8900A.endmenuz To add a line in front of„endmenu‟ statement of„Kconfig‟ file In the „driver‟ directory source"drivers/cs8900a/Kconfig"In main directory of kernel source code tree, “CS8900Anetwork device support [y / n /?]” can be found in the option„Device Drivers‟ through command „make menuconfig‟ or„make gconfig‟ , if select "y", the kernel will provide support for network driver.To recompile the kernel can be obtain kernel ofsupported CS8900A card, then download the kernel to the development board. By configuring networkparameters, the behavior of the network card driver can be test.7. CONCLUSIONIn recent years, Internet has a rapid development. Remote monitoring and remote maintenancebecome very easy after embedded system access internet, so the network of embedded systems is very important.Embedded system achieved internet access; its prerequisite is that system software has TCP/IP protocolsupport. Fortunately, Linux kernel provides support for multiple protocols including TCP/IP. This papertakes network chip CS8900A for example, and introduces the key process of implementing network driver.||Issn 2250-3005(online)|| ||December|| 2012 Page 283
International Journal Of Computational Engineering Research (ijceronline.com) Vol. 2 Issue. 88. AcknowledgmentThis research was supported by the Open Project Program of Key Laboratory of IntelligentManufacture of Hunan Province (Xiangtan University), China( No.2009IM03).References[1] Q.Sun, Developing Detail Explain of Embedded Linux Application, Beijing, Posts & Telecom Press,July 2006.[2] T.Z.Sun and W.J.Yuan, embedded design and Linux driver development guide, Beijing,[3]Publishing House of Electronics Industry, October 2009.M.liu, Embedded system interface design and LinuxUniversity Press,May 2006.driver development, Beijing, Beihang[4] L.G.Zhou, Example of A RM Embedded Linux System Building andDriver Development, Beijing, BeihangUniversity Press, 2006.[5] C.Qian, R.H.Xu and Q.R.Wang, “Device Driver Development Based on Linux Operating System”, Control& Automation,2004,(09).[6] Q.N.Cao, B.Zhao and K.Y.Meng, “Design and realization of embedded linux networkcommunication system based on ARM9 platform “, Journal of Northwest University(Natural ScienceEdition), 2009,(1).[7] J.Zhao,X.Q.Ding, “Development and Implementation Principle of Network Driver Based onEmbedded Linux”, Microcomputer Information, 2008,(17).[8] F.J.Li and W.D.Jin, “Research and Implementation of Network Driver in Embedded Linux”, ModernElectronic Technique, 2005(16)[9] W.Su, “Design of Linux Network Device Driver” Financial Computer of Huanan, 2005(06).[10] D.Cao and K.Wang, “Research of Network Device Driver based on Linux”, Computer Knowledge andTechnology, 2005( 21).[11] Q.Wu, SH.H.Zhou and ZH.X.Ma, “Development of Linux Network Driver Based on USBDevice”, Microcomputer Information,2007,(02). V12-448||Issn 2250-3005(online)|| ||December|| 2012 Page 284
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ISSN: 2250-3005 - ijcer

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