From: Takashi Iwai <tiwai@suse.de>
To: "Sebastian Dalfuß" <sd@sedf.de>
Cc: Jaroslav Kysela <perex@perex.cz>, Takashi Iwai <tiwai@suse.com>,
linux-sound@vger.kernel.org, linux-kernel@vger.kernel.org
Subject: Re: [PATCH] ALSA: usb-audio: Add boot quirk for Behringer CM1A
Date: Sun, 06 Sep 2026 10:12:55 +0200 [thread overview]
Message-ID: <87fqzm4x2w.wl-tiwai@suse.de> (raw)
In-Reply-To: <apwG4DRfNyvmRzyb@sedf.de>
On Sat, 05 Sep 2026 14:11:12 +0200,
Sebastian Dalfuß wrote:
>
> After a power cycle and reenumeration, the Behringer CM1A* leaves its
> MIDI endpoint inoperative. USB enumeration and driver binding
> complete successfully, but MIDI outputs remain pending.
>
> A GET_DESCRIPTOR request for the device descriptor, issued after USB
> configuration, makes the endpoint operational. Add a one time boot quirk
> to perform that request before ALSA initializes the device.
>
> *
> ID 1397:1234 BEHRINGER International GmbH CM1A
>
> Signed-off-by: Sebastian Dalfuß <sd@sedf.de>
Applied now. Thanks.
Takashi
prev parent reply other threads:[~2026-09-06 8:13 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-09-05 12:11 [PATCH] ALSA: usb-audio: Add boot quirk for Behringer CM1A Sebastian Dalfuß
2026-09-06 8:12 ` Takashi Iwai [this message]
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=87fqzm4x2w.wl-tiwai@suse.de \
--to=tiwai@suse.de \
--cc=linux-kernel@vger.kernel.org \
--cc=linux-sound@vger.kernel.org \
--cc=perex@perex.cz \
--cc=sd@sedf.de \
--cc=tiwai@suse.com \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.