Re: [PATCH 0/4] ALSA: usb-audio: Add dB scale quirks for AB13X and Xiaomi Speaker Mini

[Takashi Iwai]

On Mon, 19 Oct 2026 22:18:21 +0200,
Rong Zhang wrote:
> 
> I recently got two devices with insane volume control, so I tried to
> measure their volume mapping and add dB scale quirks for them.
> 
> PATCH 1 collects the code snippets for dB scale override into a helper
> function, with unified info and warning messages, and also deconflicts
> playback dB scale quirks of DragonFly.
> 
> PATCH 2 applies the MV-SILICON linear volume quirk only to the affected
> mixers, instead of the whole device.
> 
> PATCH 3 adds dB scale quirk for an AB13X variant.
> 
> PATCH 4 adds dB scale quirk for the Xiaomi Speaker Mini.
> 
> Signed-off-by: Rong Zhang <i@xxxxxxxx>
> ---
> Rong Zhang (4):
>       ALSA: usb-audio: Unify dB scale override
>       ALSA: usb-audio: Apply MV-SILICON linear volume quirk per mixer
>       ALSA: usb-audio: Add dB scale quirk for an AB13X variant
>       ALSA: usb-audio: Add dB scale quirk for Xiaomi Speaker Mini

JFYI, I postpone this for 7.5, as 7.4 merge window was already opened,
and the code change amount is slightly too big as a last-minute fix.


thanks,

Takashi