How to write a device driver in linux

yogesh_bansal · 01-25-2009, 04:54 AM

Hi,

I am newbie to linux, I have passion towards device drivers. I want to write a char or block device driver. To achieve my objective I have started reading the device driver 3rd edition from o'relly. I have successfully added a small module in the linux kernel 2.6.28 and its working fine. But I dont know how to move forward and how to take the input from user for the driver and process that.

Any guidance will be appriciated.

Thanks
Yogesh Bansal

brianL · 01-25-2009, 05:32 AM

This book, Linux Device Drivers, might be what you're looking for:
http://lwn.net/Kernel/LDD3/

maroonbaboon · 01-25-2009, 07:47 AM

This is an interesting little article.

Since you have already started writing drivers maybe it is too elementary for you, but it seems to give a few hints about how to communicate with the running module.