From mboxrd@z Thu Jan  1 00:00:00 1970
From: Clemens Ladisch <clemens@ladisch.de>
Subject: Re: [PATCH][ALSA] usbmidi support for Access Music
	synths.
Date: Fri, 12 Feb 2010 10:24:04 +0100
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To: Sebastien Alaiwan <sebastien.alaiwan@gmail.com>
Cc: Takashi Iwai <tiwai@suse.de>, alsa-devel@alsa-project.org, linux-kernel@vger.kernel.org
List-Id: alsa-devel@alsa-project.org

Sebastien Alaiwan wrote:
> I've replaced the QUIRK_COMPOSITE by a QUIRK_MIDI_FIXED_ENDPOINT, the
> module also probes (and fails) the USB interface 4 (I don't know
> what this interface is for on this device) which results in the
> printing of an error in the kernel log. How can I inform the
> snd-usb-audio driver that the USB interface 4 should be left alone?

With a QUIRK_IGNORE_INTERFACE for that interface.  This means you need
QUIRK_COMPOSITE again.


HTH
Clemens