[wdmaudiodev] Re: AVStream and Wave Devices
- From: Sam Tertzakian <saekisam@xxxxxxxxx>
- To: wdmaudiodev@xxxxxxxxxxxxx
- Date: Thu, 6 Oct 2005 17:04:04 -0700 (PDT)
I have WHQL certified audio driver that works
perfectly under 2k and XP (PortCls). However, under
Longhorn, it fails to create a Wave device.
MSFT has my device and drivers and some developers are
scheduled to investigate why that is happening.
Perhaps they will find something interesting in
corrected it, or perhaps I am doing something under XP
that I should not be doing, but works anyway.
It has been over two months now...and Richard Fricks
told me that if the developers don't get to it soon,
then he will look at it.
But, I am getting worried that we are getting so close
to the final release and this problem still exists.
Like your device, I also regiester multiple
subdevices.
--- Jeff Pages <jeff@xxxxxxxxxxxxxxxx> wrote:
> Matt,
>
> You mentioned that Windows Vista will use the
> friendly names of the pins to
> identify devices. I'm having a lot of grief with
> Vista Beta 1 and our
> multi-channel sound cards. Each channel on the card
> is registered as a
> separate input, output and topology subdevice, as
> described in the DDK under
> "Multiple Audio Subdevices", and under all current
> OSs these appear as
> separate waveIn, waveOut and Mixer devices, but
> under Vista it tries to make
> them all one device with multiple source and
> destination pins. This is a big
> problem as applications using our cards need to open
> multiple subdevices
> simultaneously.
>
> Am I going to have to write a buss driver and
> implement the multiple
> subdevices that way under Vista, or is there another
> way around this?
>
> The Vista Beta 1 WDK documentation on "Multiple
> Audio Subdevices" and
> "Kernel Streaming Topology to Audio Mixer API
> Translation" is unchanged from
> the previous DDK documentation, so I was wondering
> if this changed behaviour
> of Vista is actually documented anywhere?
>
> Jeff Pages
> Innes Corporation Pty Ltd
>
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