John S. Denker wrote:
> Request #1: USB driver supporting 24-bit i/o.
> Request #2: USB driver supporting 96000 frames per second.

What you want is already supported by the snd-usb-audio driver. IIRC
Patrick Shirkey reported that 24bit@96kHz works with the M-Audio Quattro.

> I bought an Extigy, which is capable of 24-bit i/o. It is
> also capable of digitizing 96000 frames per second.
>
> The problem is, the alsa usbaudio driver seems to know
> nothing of such capabilities.

USB devices announce their capabilities in their descriptors. Please post
the output of lsusb and the output of "od -t x1 /proc/bus/usb/001/xxx"
(xxx is the device number; try all files there, the one I want to see has
"1E 04" somewhere in the first line).


HTH
Clemens



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