[wdmaudiodev] Re: USB and ADPCM data format

  • From: "DJ Sisolak" <dsisolak@xxxxxxxxxxxxxxxxxxxxxx>
  • To: <wdmaudiodev@xxxxxxxxxxxxx>
  • Date: Mon, 22 Mar 2004 09:37:46 -0800

Hello Raph,


The short answer to your question is yes, the ADPCM format is supported
in USBAudio.sys though we have not had any devices to thoroughly test it



DJ Sisolak

Microsoft Corp.


This posting is provided "AS IS" with no warranties, and confers no



From: wdmaudiodev-bounce@xxxxxxxxxxxxx
[mailto:wdmaudiodev-bounce@xxxxxxxxxxxxx] On Behalf Of Raphael Lamy 
Sent: Monday, March 22, 2004 8:49 AM
To: wdmaudiodev@xxxxxxxxxxxxx
Subject: [wdmaudiodev] USB and ADPCM data format


Dear All, 


I develop a USB audio device and I need to use a ADPCM data format.   

I just need to know if it is possible to use this format without to
write a custom driver (maybe just using usbaudio.sys and Ks.sys). 

Which are the real datas to send from the USB chip to windows  ?  


Thanks in advance


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