[wdmaudiodev] Re: Wave Devices Under Longhorn

  • From: uwe kirst <u.kirst@xxxxxx>
  • To: wdmaudiodev@xxxxxxxxxxxxx
  • Date: Thu, 20 Oct 2005 18:34:50 +0200

Hello,
can you or someone else clarify things here.

My driver uses KSNODETYPE_SPEAKER for playback and KSNODETYPE_MICROPHONE for recording.
Playback devices have all the same name (why?).
Recording devices don't show up at all (why?).
Thanks,
Uwe



Sam Tertzakian wrote:

Hi,

I tried this...and it is working. The it is important
to have both the names and categories correct on both
wave pin bridges and topology line bridges!

---------------------------------------------------

Sam and Jeff, what are the categories of the bridge
pins that represent
the inputs and outputs (e.g. speakers, lineout, mic,
etc.) on your
topology filter?

We now look at these and create different kinds of
"endpoint" devices
for these. Wave devices ultimately map to endpoints. In order to show
up, the bridge pins need to be one of the following
types:


"External Endpoint Devices" (Things the typical user
is probably
familiar with)
       KSNODETYPE_SPEAKER
       KSNODETYPE_MICROPHONE
       KSNODETYPE_PERSONAL_MICROPHONE
       KSNODETYPE_MICROPHONE_ARRAY
       KSNODETYPE_LINE_CONNECTOR
       KSNODETYPE_HEADPHONES
       KSNODETYPE_DIGITAL_AUDIO_INTERFACE
       KSNODETYPE_SPDIF_INTERFACE

"Internal Endpoint Devices" (Abstract or exists as an
ATAPI jack inside
the PC case)
       KSNODETYPE_ANALOG_CONNECTOR
       KSNODETYPE_CD_PLAYER

We are considering expanding this list somewhat to
better accommodate
things like headsets, phones, etc.

It looks like a whitepaper on this subject is
overdue...

Let me know if this fixes things or not.  If not, I
will try to track
down the device and take a look at.

Regards,

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