PORTS Forum

Ports and Interfaces => USB => Topic started by: tmf on July 04, 2010, 02:30:52 am

Title: USB AUDIO
Post by: tmf on July 04, 2010, 02:30:52 am

I have written code for a small microcontroller to do USB AUDIO (speakers) and it works on an XP machine and not Vista or Windows 7, I have narrowed it down to a lot of people online talking about how their USB audio devices all stopped working on Vista and that it was a known fact and had to do with Microsoft DRM, somehow MS does not like the device as it is not seen as DRM worthy. I wonder if anyone knows the exact reason and what you need to add to the USB AUDIO device to make Vista like it? (modify the USB descripto????)

Thanks!

Title: Re: USB AUDIO
Post by: Jan Axelson on July 04, 2010, 02:57:09 pm

You've likely seen it, but there is a hotfix:

http://support.microsoft.com/kb/944681

The setupapi files might also offer a clue.

Jan