Re: [PATCH] ALSA: usb-audio: Add boot quirk for Behringer CM1A

[Takashi Iwai]

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@xxxxxxx>

Applied now.  Thanks.


Takashi