[wdmaudiodev] UAA Driver Information

  • From: Pev <pev@xxxxxxxxxxxxxxx>
  • To: wdmaudiodev@xxxxxxxxxxxxx
  • Date: Wed, 05 Dec 2007 18:47:17 +0000

Hi all,

   Firstly, I'm new to the list so hello! I suspect I'm going to be
lurking here for quite a while :-)

   My question that I was going to throw to the list is to do with UAA
drivers. I'm looking at writing what's effectively a clone of the HD
Audio class driver but extended for the hardware we're using. Now I'm
slightly nervous due to the lack of sample code, documentation or pretty
much anything beyond the HD Audio DDI spec document and a slew of
powerpoint presentations that are fairly thin on meaty content. Can
anyone reccommend any further sources of reference?

  Additionally, both the HD Audio DDI doc and the WinHEC2004
presentation point to whats referred to as the "Microsoft HD Audio IHV
Enabling Kit version 1.0" which according to the PPT was released with
both bus driver and function driver source code as well as further
documentation but as I understand this it doesn't actually exist?!

  So basically am I right in thinking that I'm going to have to create
both a bus driver and HD Audio function driver with not much more to
start with than a copy of the ac97 sample, the HD Audio DDI document
and a copy of hdaudio.h from the DDK? Can anyone that is (or has been)
involved in writing a UAA driver provide any encouragement? (c:

Best Wishes to all!



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