i wrote a driver who create a directory named abc and one file named xyz1 under this directory also.This directory is at /proc/.
When i am trying to write on this file my driver proc_write function getting executed continually.I wrote simple general code under proc_write function.

i am writing to the file using this command

echo start>/proc/abc/xyz1


Please help me ...

Why are you creating/writing files under /proc ? .. this is not a physical file system, just a representation of information from the kernel.

I'm a bit confused; you wrote a kernel driver (which means you're a skilled programmer), but can't figure out how to debug your own code? And as kbp asked, why are you writing files to /proc? If you need help with your code, post it.

I think the OP is trying to say that his driver creates the virtual file(s) in the /proc filesystem. While I am no kernel development expert, this seems like a reasonable thing for a driver to do. If I further understand the crux of the question, it sounds like the OP is saying that the callback in the driver is being called repeatedly whenever a value gets written from userspace. My guess is that the callback must return a correct status to indicate that it has consumed the input, and should not be bothered about it any further.

Whatever the problem, I concur with TB0ne that the only way for anyone to provide much insight is to post the relevant section(s) of code, retaining all formatting by posting in [CODE][/CODE] tags, of course.

--- rod.