Hello, I've got a Logitech USB Headset that runs properly as a uaudio device
for output, but the mic doesn't work, as the kernel says 'ignoring endpoint
of type adaptive'. I've added the device to usbdevs and tried adding an
entry to usb_quirks.c similar to one I see for another headset (the
PLANTRONICS one), but I have no idea what that hex value after the device
and before the quirk should be set to. Using the one for the PLANTRONICS
headset doesn't make a difference.

Any help would be appreciated.

Thanks,
-Sean