Kernel update has lost XMOS USB hardware

"David W. Legg" <dwlegg@xxxxxxxxx> · Fri, 9 Jul 2021 10:10:28 +0100

I tried updating my Fedora 34 kernel from-

5.11.17-300

to

5.12.14-300

and it no longer recognises my XMOS USB device:

$ cat /proc/asound/cards

 0 [ALSA           ]: bcm2835_alsa - bcm2835 ALSA
                      bcm2835 ALSA
 1 [vc4hdmi0       ]: vc4-hdmi - vc4-hdmi-0
                      vc4-hdmi-0
 2 [vc4hdmi1       ]: vc4-hdmi - vc4-hdmi-1
                      vc4-hdmi-1
 4 [H20            ]: USB-Audio - HU300 HiFi 2.0
                      Yunyue Audio HU300 HiFi 2.0 at usb-0000:01:00.0-1.3, high speed

So, device number 4 is missing with the 5.12.14-300 kernel.

Given that the rpi4 is not yet supported, whom should I tell about this apparent bug, please?

:D
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