How to use /proc

[Surenkumar Nihalani]

Hello Guys, 

I am CS student trying to write a kernel module as a part of my class assignment. I wanted to know, from within kernel, how do I read and write data to my proc file? 
I need to store state from last call of my function. 

Thanks, 
Suren Nihalani. 
-------------- next part --------------
An HTML attachment was scrubbed...
URL: http://lists.kernelnewbies.org/pipermail/kernelnewbies/attachments/20120205/445fe425/attachment.html