[alsa-devel] How to create an Alsa mixer for a USB device w/o mixer descriptor?

Hi,

as posted earlier, I've got a USB device (Fast Track Ultra 8R) wich *has* a mixer unit but doesn't have a descriptor for it. It's operated by standard control messages. Although I'm specifically interested in my device, I guess there are many more USB interfaces out there with similar issues.

So in general: What's the best way to build a Alsa mixer for such devices. Should one bypass all the descriptor parsing and build a mixer specifically for the device in interest? Or should one think about passing a "fake" descriptor to the mixer build process?

Any ideas?

Kind regards,

Felix