[Bug 219111] New: Xone:23C mixer not recognized as a 2in/2out device

[bugzilla-daemon@kernel.org]

https://bugzilla.kernel.org/show_bug.cgi?id=219111

            Bug ID: 219111
           Summary: Xone:23C mixer not recognized as a 2in/2out device
           Product: Drivers
           Version: 2.5
          Hardware: All
                OS: Linux
            Status: NEW
          Severity: normal
          Priority: P3
         Component: USB
          Assignee: drivers_usb@kernel-bugs.kernel.org
          Reporter: com+bugzilla-kernel@c-henry.fr
        Regression: No

Created attachment 306638
  --> https://bugzilla.kernel.org/attachment.cgi?id=306638&action=edit
dmesg

The problem is very similar to
https://bugzilla.kernel.org/show_bug.cgi?id=217089: the Xone:23C is supposed to
be a 2 stereo input/2 stereo outputs but only 1 in and 1 out show under Linux
(Windows with related drivers installs show the correct amount of in/out).

Trying to set bConfigurationValue, either by editing
/sys/bus/usb/devices/1-9/bConfigurationValue by hand or using a udev rule won't
work:

# echo 2 >
/sys/devices/pci0000:00/0000:00:01.3/0000:01:00.0/usb1/1-2/bConfigurationValue
bash: echo: write error: Invalid argument

Please find enclosed with this ticket, the relevant journalctl, dmsg, lsusb and
`cat /sys/kernel/debug/usb/usbmon/1u` of the moment I plug the device.

Reproduced on a Fedora 40 with kernel 6.9.11.

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