Re: Communication between kernel and user application

[amith <amith@xxxxxxxxxxxxxxx>]

Mauricio Lin wrote:

> Hi all,
>
> Does anyone know how can i develop a program that
> communicates with kernel?
>
> I would like to develop an application that can read
> some kernel data structures like task struct?
>
> BR,
>
> Mauricio Lin.
             as somebody already mentioned write a new system call , 
and the other way would be to use a device file to read and write 
something from the kernel. for every read your device_read can read the 
task_struct of whichever pid you want the task_struct of , and your user 
program could pass the pid or prog name of the process.
this is a simple and easier way of reading/writing to the kernel. Read a 
little about module programming and you can implement it without much 
trouble.

hope that helped.
cheers,
Amith





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