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Altera_Forum's avatar
Altera_Forum
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16 years ago

Ioctl problem

Hi, I'm writing a device driver and I have problems with the ioctl function. When I run my user application associated with the driver in the terminal, "printks" that are inside my module funct...
Altera_Forum's avatar
Altera_Forum
Icon for Honored Contributor rankHonored Contributor
16 years ago

Hi,

Maby I'm wrong but I'm not agree with you. It's true that 'fwrite' is a function of <stdio.h> library , but it is connected with my kernel function write.

One of the parametres of fwrite is a file_pointer, this file_pointer has the same major as my driver, so when I call a fwrite in user space indirectly I call my function write in kernel.

Things ara litle complex but more or less.This what I think, maby I'm wrong tell me please.

Thanks