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

[bugzilla-daemon@kernel.org]

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

--- Comment #18 from CH (com+bugzilla-kernel@c-henry.fr) ---
Ok, so I finally managed to correclty install and run the patched kernel and it
appears your patch doesn't work. Here's the journalctl trace from when I plug
the mixer:

août 04 17:32:42 localhost kernel: usb 1-2: new high-speed USB device number 7
using xhci_hcd
août 04 17:32:42 localhost kernel: usb 1-2: Patch applied
août 04 17:32:42 localhost kernel: usb 1-2: Skipped second reset
août 04 17:32:42 localhost kernel: usb 1-2: New USB device found,
idVendor=22f0, idProduct=0008, bcdDevice= 2.00
août 04 17:32:42 localhost kernel: usb 1-2: New USB device strings: Mfr=1,
Product=2, SerialNumber=3
août 04 17:32:42 localhost kernel: usb 1-2: Product: Xone:23C
août 04 17:32:42 localhost kernel: usb 1-2: Manufacturer: Allen&Heath
août 04 17:32:42 localhost kernel: usb 1-2: SerialNumber: no serial number
août 04 17:32:42 localhost kernel: usb 1-2: 1:2 : UAC_AS_GENERAL descriptor not
found
août 04 17:32:42 localhost kernel: usb 1-2: 2:2 : UAC_AS_GENERAL descriptor not
found
août 04 17:32:42 localhost kernel: usb 1-2: Quirk or no altset; falling back to
MIDI 1.0
août 04 17:32:42 localhost mtp-probe[5421]: checking bus 1, device 7:
"/sys/devices/pci0000:00/0000:00:01.3/0000:01:00.0/usb1/1-2"
août 04 17:32:42 localhost mtp-probe[5421]: bus: 1, device: 7 was not an MTP
device
août 04 17:32:42 localhost (udev-worker)[5420]: 1-2:
/usr/lib/udev/rules.d/69-mixxx-usb-uaccess.rules:19 Failed to write
ATTR{/sys/devices/pci0000:00/0000:00:01.3/0000:01:00.0/usb1/1-2/bConfigurationValue},
ignoring: Invalid argument
août 04 17:32:42 localhost mtp-probe[5443]: checking bus 1, device 7:
"/sys/devices/pci0000:00/0000:00:01.3/0000:01:00.0/usb1/1-2"
août 04 17:32:42 localhost mtp-probe[5443]: bus: 1, device: 7 was not an MTP
device
août 04 17:32:42 localhost kded6[3384]: org.kde.pulseaudio: No object for name
"alsa_output.pci-0000_08_00.4.analog-stereo.monitor"
août 04 17:32:42 localhost plasmashell[3409]: org.kde.pulseaudio: No object for
name "alsa_output.pci-0000_08_00.4.analog-stereo.monitor"
août 04 17:32:42 localhost kded6[3384]: org.kde.pulseaudio: No object for name
"alsa_output.pci-0000_08_00.4.analog-stereo.monitor"
août 04 17:32:42 localhost plasmashell[3409]: org.kde.pulseaudio: No object for
name "alsa_output.pci-0000_08_00.4.analog-stereo.monitor"
août 04 17:32:42 localhost kded6[3384]: org.kde.pulseaudio: No object for name
"alsa_output.pci-0000_08_00.4.analog-stereo.monitor"
août 04 17:32:42 localhost kded6[3384]: org.kde.pulseaudio: No object for name
"alsa_output.pci-0000_08_00.4.analog-stereo.monitor"
août 04 17:32:42 localhost plasmashell[3409]: org.kde.pulseaudio: No object for
name "alsa_output.pci-0000_08_00.4.analog-stereo.monitor"
août 04 17:32:42 localhost plasmashell[3409]: org.kde.pulseaudio: No object for
name "alsa_output.pci-0000_08_00.4.analog-stereo.monitor"
août 04 17:32:42 localhost kded6[3384]: org.kde.pulseaudio: No object for name
"alsa_output.pci-0000_08_00.4.analog-stereo.monitor"
août 04 17:32:42 localhost plasmashell[3409]: org.kde.pulseaudio: No object for
name "alsa_output.pci-0000_08_00.4.analog-stereo.monitor"
août 04 17:32:42 localhost kded6[3384]: org.kde.pulseaudio: No object for name
"alsa_output.pci-0000_08_00.4.analog-stereo.monitor"
août 04 17:32:42 localhost plasmashell[3409]: org.kde.pulseaudio: No object for
name "alsa_output.pci-0000_08_00.4.analog-stereo.monitor"


You can see the *Patch applied* log which is a line I added to ensure I was
indeed running the patched kernel and the *Skipped second reset* line that
indicates the `if (maxp0 <= 18)` was skipped but udev still fails to apply the
`bConfigurationValue` rule.

If you want to test another patch, I now know how to do.

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