Re: Redirecting output

[Andrew Morton <akpm@osdl.org>]

"shafa.hidee" <shafa.hidee@gmail.com> wrote:
>
>      I have created a dummy module for learning device driver in linux. I
>  want to redirect the standard output of printk to my xterm. But by default
>  it is redirected to tty.
> 
>  I have remote logged into the machine.

You can do this from within the module_init() handler only:

module_init_handler(...)
{
	mm_segment_t old_fs;

	....
	old_fs = set_fs(KERNEL_DS);
	sys_write(1, "foo\n", 4);
	set_fs(old_fs);
	...
}

The text comes out on modprobe's standard output.

Don't tell anyone I told you this.