ALSA: usb-audio: Adding mixer controls to Mbox3

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Thank you for all your help, Takashi!

I would like to add the hardware mixer controls for Mbox3.
I have already identified every control in the function "mbox3_setup_defaults"
of "quirks.c", but I am unsure about the structure needed to make the controls
appear in alsamixer (further investigation is required). I would appreciate any
help you or anyone else can provide.

Manuel Barrio Linares


On Wed, May 1, 2024 at 4:55 AM Takashi Iwai <tiwai@xxxxxxx> wrote:
>
> On Tue, 30 Apr 2024 19:10:18 +0200,
> Manuel Barrio Linares wrote:
> >
> > This adds support for all sample rates supported by the
> > hardware,Digidesign Mbox 3 supports: {44100, 48000, 88200, 96000}
> >
> > Fixes syncing clock issues that presented as pops. To test this, without
> > this patch playing 440hz tone produces pops.
> >
> > Clock is now synced between playback and capture interfaces so no more
> > latency drift issue when using pipewire pro-profile.
> > (https://gitlab.freedesktop.org/pipewire/pipewire/-/issues/3900)
> >
> > Signed-off-by: Manuel Barrio Linares <mbarriolinares@xxxxxxxxx>
>
> Applied to for-next branch now.  Thanks!
>
>
> Takashi




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