kern/56659: Focusrite Scarlett 2i4 USB audio autoconfiguration error

[allcoms%gmail.com@localhost]

>Number:         56659
>Category:       kern
>Synopsis:       Focusrite Scarlett 2i4 USB 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 17:45:00 +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:
[   834.038464] uaudio0 at uhub3 port 3 configuration 1 interface 0
[   834.038464] uaudio0: Focusrite (0x1235) Scarlett 2i4 USB (0x800a), rev 2.00/1.25, addr 4
[   834.038464] uaudio0: autoconfiguration error: audio descriptors make no sense, error=4
[   834.038464] uaudio1 at uhub3 port 3 configuration 1 interface 3
[   834.038464] uaudio1: Focusrite (0x1235) Scarlett 2i4 USB (0x800a), rev 2.00/1.25, addr 4
[   834.038464] uaudio1: autoconfiguration error: audio descriptors make no sense, error=4
[   834.038464] umidi0 at uhub3 port 3 configuration 1 interface 4
[   834.038464] umidi0: Focusrite (0x1235) Scarlett 2i4 USB (0x800a), rev 2.00/1.25, addr 4
[   834.038464] umidi0: (genuine USB-MIDI)
[   834.038464] umidi0: out=1, in=1
[   834.038464] midi1 at umidi0: <0 >0 on umidi0
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
localhost# 

>How-To-Repeat:
Attach a Focusrite Scarlett 2i4 to a machine running NetBSD current. The above errors are output to dmesg and the device doesn't get listed by audiocfg list.
>Fix: