I want to learn device driver developement.Can anybody help me..

It is an active field as the kernel is constantly in motion. Your best bet would be to download the latest kernel source code and look at how current drivers are implemented. Once you have that build questions around items you can not understand - it will increase the likelihood that you get a relevant reply.

There are some good resources online to help with this. One is "Linux Device Drivers" here free: http://lwn.net/Kernel/LDD3/ It can also be purchased from O'Reilly, or Amazon. Another good resource is "Linux Kernel Development" by Robert Love, published by Addison-Wesley. It is also available online (3rd edition) for free. Not sure what the URI is for that, but I have a copy (pdf) on my system.

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