В Сб, 14/12/2019 в 09:24 +0100, Tobias пишет:
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
Please try to add delay after each class control request in snd_usb_ctl_msg_quirk():
if (chip->usb_id == USB_ID(0x15e4, 0x8004) && (requesttype & USB_TYPE_MASK) == USB_TYPE_CLASS) msleep(20);