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

[Takashi Iwai]

On Mon, 13 Jan 2020 14:58:53 +0100,
Tobias wrote:
> 
> Hello dear ALSA developers - is there any chance to get the Denon
> MC7000 and MC8000 USB Audio devices supported? See previous message
> for details.

Which kernel did you try?  IOW, does the problem still persist with
the recent kernel?

If yes, how was the last question Clemens pointed in the forum you
cited?


thanks,

Takashi

> Thanks a lot
> Tobias
> 
> 
> 
> Am 14.12.19 um 09:24 schrieb Tobias:
> > Hello dear ALSA developers.
> >
> > I have purchased a MC7000 controller in order to control MIXXX on
> > Ubuntu 16.04. According to the Denon specification the controller
> > should have been class compliant but there is an issue with the
> > Audio interface to work properly giving following message ...
> >
> > $ dmesg
> > ...
> > |[   74.522831] usb 1-1.3: new high-speed USB device number 6 using
> > xhci_hcd
> > [   74.623784] usb 1-1.3: New USB device found, idVendor=15e4,
> > idProduct=8004
> > [   74.623789] usb 1-1.3: New USB device strings: Mfr=1, Product=2,
> > SerialNumber=3
> > [   74.623793] usb 1-1.3: Product: DENON DJ MC7000
> > [   74.623796] usb 1-1.3: Manufacturer: DENON DJ
> > [   74.623798] usb 1-1.3: SerialNumber: 201603
> > [   74.625134] usb 1-1.3: clock source 65 is not valid, cannot use
> >
> > "|||clock source 65 is not valid, cannot use" is repeated
> > uncountable times then
> >
> >
> > |I found a discussion here for the MC8000 Audio interface which was
> > not working and showing the same error message:
> >
> > https://alsa-user.narkive.com/2tDAO87f/troubleshooting-new-usb-audio-device#post8 
> >
> >
> > The solution was to change sound/usb/clock.c and recompile the kernel.
> > This is not practical for daily use case so I would like to ask if
> > the ALSA team could possibly find a permanent fix for ordinary
> > users.
> >
> > To get my outputs for
> >
> > aplay -l
> > aplay -L
> > |||aplay -D plughw:CARD=MC7000,DEV=0 Grimmaldika-MakeBelieve.wav
> > |lsusb -v
> > mixxx --controllerDebug||
> > JackServer error message|
> >
> > you may have a look at the Mixxx Community Forums here(just on page,
> > you don't need to find and read on multiple pages)
> >
> > https://www.mixxx.org/forums/viewtopic.php?f=7&t=12962&start=10
> >
> > If you need any more information then please let me know.
> >
> > Thanks a lot for your support on this matter.
> >
> > Cheers!
> > OsZ
> > ||
> 
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