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August 26, 2024 20:17
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udev rule for the Xone 23C; sets configuration to state "2" so this shows up as a 4 input/4 output soundcard - otherwise shows up as only 2 input/2 output. Only tested with the Xone 32C configured for DVS. Put this file in /etc/udev/rules.d/
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| ACTION=="add", SUBSYSTEM=="usb", ATTR{idVendor}=="22f0", ATTR{idProduct}=="0008", ATTR{bConfigurationValue}="2" |
I am having the problem again on newer kernels (6.9). The udev rule seems to have a wrong parameter according to journalctl -xe after restarting the device:
Aug 26 22:07:21 fhchl-macbookpro55 kernel: usb 4-2: new high-speed USB device number 10 using ehci-pci
Aug 26 22:07:21 fhchl-macbookpro55 kernel: usb 4-2: device descriptor read/8, error -71
Aug 26 22:07:21 fhchl-macbookpro55 kernel: usb 4-2: device descriptor read/8, error -71
Aug 26 22:07:21 fhchl-macbookpro55 kernel: usb 4-2: new high-speed USB device number 11 using ehci-pci
Aug 26 22:07:21 fhchl-macbookpro55 kernel: usb 4-2: device descriptor read/8, error -71
Aug 26 22:07:22 fhchl-macbookpro55 kernel: usb 4-2: device descriptor read/8, error -71
Aug 26 22:07:22 fhchl-macbookpro55 kernel: usb usb4-port2: attempt power cycle
Aug 26 22:07:22 fhchl-macbookpro55 kernel: usb 4-2: new high-speed USB device number 12 using ehci-pci
Aug 26 22:07:22 fhchl-macbookpro55 kernel: usb 4-2: New USB device found, idVendor=22f0, idProduct=0008, bcdDevice= 2.00
Aug 26 22:07:22 fhchl-macbookpro55 kernel: usb 4-2: New USB device strings: Mfr=1, Product=2, SerialNumber=3
Aug 26 22:07:22 fhchl-macbookpro55 kernel: usb 4-2: Product: Xone:23C
Aug 26 22:07:22 fhchl-macbookpro55 kernel: usb 4-2: Manufacturer: Allen&Heath
Aug 26 22:07:22 fhchl-macbookpro55 kernel: usb 4-2: SerialNumber: no serial number
Aug 26 22:07:22 fhchl-macbookpro55 kernel: usb 4-2: 1:2 : UAC_AS_GENERAL descriptor not found
Aug 26 22:07:22 fhchl-macbookpro55 kernel: usb 4-2: 2:2 : UAC_AS_GENERAL descriptor not found
Aug 26 22:07:22 fhchl-macbookpro55 kernel: usb 4-2: Quirk or no altset; falling back to MIDI 1.0
Aug 26 22:07:22 fhchl-macbookpro55 mtp-probe[3207]: checking bus 4, device 12: "/sys/devices/pci0000:00/0000:00:06.1/usb4/4-2"
Aug 26 22:07:22 fhchl-macbookpro55 mtp-probe[3207]: bus: 4, device: 12 was not an MTP device
Aug 26 22:07:22 fhchl-macbookpro55 (udev-worker)[3206]: 4-2: /etc/udev/rules.d/99-xone.rules:1 Failed to write ATTR{/sys/devices/pci0000:00/0000:00:06.1/usb4/4-2/bConfigurationValue}="2", ignoring: Invalid argument
Aug 26 22:07:22 fhchl-macbookpro55 mtp-probe[3219]: checking bus 4, device 12: "/sys/devices/pci0000:00/0000:00:06.1/usb4/4-2"
Aug 26 22:07:22 fhchl-macbookpro55 mtp-probe[3219]: bus: 4, device: 12 was not an MTP device
I coudn't get channels 3 and 4 visible.
Any ideas?
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@molli1312 All right, after a "reboot" of the mixer it now works as expected, i see correctly 4 channels in Mixxx.
Thank you man!
As a side note, in my setup at least, it is important to unplug the USB cable as well then reconnect only after the mixer is on. If the USB cable stay connected, the device is not recognized at all:
It seems an udev rule related to sound card initialization fails.
Once the system fall into this issue, whatever i do (unplug, replug, reboot the mixer) the device is not recognized. The only solution i found is to reboot the kernel. I'll look more further at this issue then report here if i find something interresting.