Re: hello world module?

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On Tue, 28 Apr 2009, Simon wrote:

> Hi there,
>   I've compiled all my ideas in my brain and now i need to port it all
> to the x86 architecture!  I'm reading the kernel documentation for
> Kbuild, makefiles and others, it seems quite simple... but i was
> wondering if there was any such thing as an example dummy module that
> I could copy and build upon?
>
> I'm thinking about the most basic module that provides Loading and
> Unloading.  If i could do a printk, i'd probably just make it say
> 'hello world' when loading and 'bye bye' when unloading.  I think if i
> can get this working, the rest should be pretty smooth.
>
> Can anyone point me to the most simple code file that would contain a
> module similar to what i'm trying to make?  or a website to a tutorial
> in creating my first kernel module?  (i mostly need code example, but
> without any extras, like a 30 lines file or less for example)

  once upon a time, i wrote this:

http://www.crashcourse.ca/wiki/index.php/Writing_your_first_kernel_module

if it doesn't work anymore, let me know and i'll fix it.

rday
--

========================================================================
Robert P. J. Day                               Waterloo, Ontario, CANADA

        Linux Consulting, Training and Annoying Kernel Pedantry.

Web page:                                          http://crashcourse.ca
Linked In:                             http://www.linkedin.com/in/rpjday
Twitter:                                       http://twitter.com/rpjday
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