samuel Lellouche wrote:

> Anyone know any LKM that attaches a device ?
> or can give me any documentation about LKM ?

  Have you looked at the old Amiga audio driver LKMs as Ignatios and
Hubert suggested earlier?  They might be a good starting point for you. 
Here are the references, in case you missed them:


On Sat, 5 Feb 2000 17:36:12 +0100, Ignatios Souvatzis wrote:

 > For a long time, the predecessor to the AMiga internal audio
 > driver was (only) available as a device driver.


On Sun, 6 Feb 2000 04:16:39 +0100 (MET), Hubert Feyrer wrote:

 > If Ignatios doesn't have it any more, it _may_ be available in one of
the
 > remaining mirrors of the former NetBSD-Amiga site - the one at
 >
ftp://ftp.funet.fi/pub/mirrors/ftp.uni-regensburg.de/pub/NetBSD-Amiga/
 > still seems to have all the files.

 > At 
 >
ftp://ftp.funet.fi/pub/mirrors/ftp.uni-regensburg.de/pub/NetBSD-Amiga/experimental/bin12/
 > the files audio-src12.tar.gz, audio-src12.readme  and
audio-src12.tar.gz
 > may be of interrest. (Someone should save that archive... the master
site 
 > here in regensburg is gone due to a disk crash)


  Perhaps there you find the answers you need.

  Cheers
      ,
   Rene