Re: Re: Re: [PATCH] ALSA: usb-audio: Add quirk flags for SC13A

[Ai Chao]

Hi Rong:

> > >   usb 3-5.2.4.1: Warning! Unlikely big volume range (=4096),
> > >     cval->res is probably wrong.
> > >   usb 3-5.2.4.1: [5] FU [Mic Capture Volume] ch = 1, val = 0/4096/1
> >
> >  Most CVTE webcams also ship with a microphone. Does it also apply to
> > SC13A? If so, it probably needs a mixer quirk too, e.g.,
> > QUIRK_FLAG_MIXER_CAPTURE_LINEAR_VOL, QUIRK_FLAG_MIC_RES_*, or a device-
> > specific one.
>
> Thank you for pointing this out. I will contact the vendor to confirm right away.

Yes, the SC13A includes a microphone.
The vendor confirmed that the mixer volume control works as expected, so it doesn't
seem to require QUIRK_FLAG_MIXER_CAPTURE_LINEAR_VOL or QUIRK_FLAG_MIC_RES_*.

Thanks,
Ai Chao