have you ask the author of that patch ?
similar case is the four channel mic array of ps3 eye
USB Mixer information !!---------------------------
USB Mixer: usb_id=0x14152000, ctrlif=1, ctlerr=0 Card: OmniVision Technologies, Inc. USB Camera-B4.04.27.1 at usb-0000:00:1d.7-4, high Unit: 3 Control: name="Mic Capture Volume", index=0 Info: id=3, control=2, cmask=0xf, channels=4, type="S16" Volume: min=0, max=1, dBmin=0, dBmax=0
https://www.libreoffice.org/bugzilla/show_bug.cgi?id=45813
have you ask the author of that patch ?
similar case is the four channel mic array of ps3 eye
USB Mixer information ------- ------- ------- -
!!-----
USB Mixer: usb_id=0x14152000, ctrlif=1, ctlerr=0
Card: OmniVision Technologies, Inc. USB Camera-B4.04.27.1 at usb-0000:00:1d.7-4, high
Unit: 3
Control: name="Mic Capture Volume", index=0
Info: id=3, control=2, cmask=0xf, channels=4, type="S16"
Volume: min=0, max=1, dBmin=0, dBmax=0
https:/ /www.libreoffic e.org/bugzilla/ show_bug. cgi?id= 45813