[alsa-devel] USB Audio Interface / Denon MC7000 and MC8000 controller

[Takashi Iwai]

On Thu, 16 Jan 2020 18:45:28 +0100,
Tobias wrote:
> 
> I applied the patch and when connecting the Denon MC7000 the attached
> is what dmesg shows...
> Hope you can find something useful in there.

Thanks.  This shows the validation error reported repeatedly at each
access.  Hmm.

> Please let me know, if I can be of any more help.

Please give lsusb -v output for the device, too, as well as
alsa-info.sh output (run with --no-upload option).

And, be prepared for building the more recent kernel.  At least, the
latest 5.4.y would be good -- otherwise there can be a chance you
overlook something that was fixed already.


Takashi