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New: xone23c mixer

Bug 217088 [email protected] 1 participant 3 messages Feb 26, 2023 – Feb 27, 2023 USB

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https://bugzilla.kernel.org/show_bug.cgi?id=217088

            Bug ID: 217088
           Summary: xone23c mixer
           Product: Drivers
           Version: 2.5
    Kernel Version: <5.4.0.33
          Hardware: All
                OS: Linux
              Tree: Mainline
            Status: NEW
          Severity: normal
          Priority: P1
         Component: USB
          Assignee: [email protected]
          Reporter: [email protected]
        Regression: No

Having a few problems with the Xone32c though not sure if this is an ALSA issue or general USB stack problem.

It's a USB soundcard that is supposed to have 4 inputs and 4 outputs. It seems to have 2 USB configurations (bNumConfigurations : 0x2). When plugged in, bConfigurationValue is 0x1 and only 2 inputs and 2 outputs show up. Change this value to 0x2 and it shows up (as it should) as 4 inputs and 4 outputs.

I can change the bConfigurationValue with this udev rule, or with a `echo 2

/sys/bus/usb/devices/1-1.4/bConfigurationValue`:

This has all been working OK on Ubuntu 20.04 running kernel 5.4.0-33-generic. However, I just updated to 5.4.0-37-generic and now there is only a single USB configuration (bNumConfigurations : 0x1) and bConfigurationValue can't be changed to 0x2:

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