kern/56660: Douk Audio U2 PRO USB (XMOS HIFI DSD) audio autoconfiguration error

[allcoms%gmail.com@localhost]

>Number:         56660
>Category:       kern
>Synopsis:       Douk Audio U2 PRO USB (XMOS HIFI DSD) audio autoconfiguration error
>Confidential:   no
>Severity:       serious
>Priority:       medium
>Responsible:    kern-bug-people
>State:          open
>Class:          sw-bug
>Submitter-Id:   net
>Arrival-Date:   Sun Jan 23 18:25:00 +0000 2022
>Originator:     Dan MacDonald
>Release:        NetBSD 9.99.93
>Organization:
>Environment:
NetBSD localhost 9.99.93 NetBSD 9.99.93 (GENERIC) #0: Fri Jan 21 08:58:10 UTC 2022  mkrepro%mkrepro.NetBSD.org@localhost:/usr/src/sys/arch/amd64/compile/GENERIC amd64

>Description:
This sound card offers 24/32 bit 192 Khz output via TOSLINK/SPDIF and coax.

It looks like NetBSD doesn't support any UAC/ADC-2 devices yet? I believe FreeBSD does have a driver for UAC 2 audio devices but I've not tested that yet.

[   129.100319] uaudio0 at uhub9 port 3 configuration 1 interface 0
[   129.100319] uaudio0: XMOS (0x20b1) HIFI DSD (0x0008), rev 2.00/6.c5, addr 2
[   129.100319] uaudio0: autoconfiguration error: audio descriptors make no sense, error=4
localhost# uname -a
NetBSD localhost 9.99.93 NetBSD 9.99.93 (GENERIC) #0: Fri Jan 21 08:58:10 UTC 2022  mkrepro%mkrepro.NetBSD.org@localhost:/usr/src/sys/arch/amd64/compile/GENERIC amd64


>How-To-Repeat:
Attach a Douk Audio U2 PRO USB soundcard or another device using the XMOS HIFI DSD chipset to NetBSD current.
>Fix: