[alsa-devel] [PATCH] add Steinberg UR44 USB Audio Interface support to quirks-table

[Clemens Ladisch]

Cyrus Harmon wrote:
> I'm interested in finding out what quirk->type is when it gets to
> snd_usb_create_quirk as it looks like the function in the quirk_funcs
> table that gets called here produces the first suspect error.

>>> [    2.964094] snd-usb-audio 3-3.2:1.0: checking PCM interface
>>> [    2.964104] snd-usb-audio: probe of 3-3.2:1.0 failed with error -5

The first error is harmless (the control interface is not a PCM
interface).

>>> ...
>>> [    2.970930] snd-usb-audio: probe of 3-3.2:1.1 failed with error -5

The second error happens during snd_card_register().  In other words,
there's probably something about the PCM device that makes
snd_pcm_dev_register() unhappy.


Regards,
Clemens