Writing to a file

[Maxim Zhuravlev]

"Sonja Milicic" <tanarri at geri.cc.fer.hr> wrote 

> So, could anyone please give me a detailed
> explanation of how to open a file in kernel and write to it - best data
> types to use, functions, what to look out for, maybe a link to tutorial
> or manual that deals with this (if such a thing exists), etc.?


Not really an explanation, but may be you should start from 
vfs kernel subsystem (it should be nicely documented, I guess :)). 
Even more adequate, study file-related syscalls implementation.
If not done already.

WBR,
Maxim