[alsa-devel] [usb-audio] M-Audio FastTrack Pro giving invalid sample rates

[Clemens Ladisch]

Lasse Kärkkäinen wrote:
> ALSA seems to think that the card supports a wide range of sampling
> rates, but it does not manage to set them in practice. I do not know
> which is faulty, ALSA rate setting or the USB info sent by the device,
> but the problem needs to be fixed.

This device, and some others from M-Audio, do not really conform to the
USB Audio specification; there are interdependencies between the
playback, capture and digital interfaces that are not described in the
USB descriptors.

These devices will not be supported completely unless a separate driver
is written for them.


Regards,
Clemens