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SubjectRe: [PATCH SND/USB]: Add QuickCam Communicate Deluxe/S7500 to volume_control_quirks.
On Fri, 09 Dec 2016 21:35:17 +0100,
Con Kolivas wrote:
>
> On Friday, 9 December 2016 11:22:15 AM AEDT Takashi Iwai wrote:
> > On Fri, 09 Dec 2016 05:15:57 +0100,
> >
> > Con Kolivas wrote:
> > > The Logitech QuickCam Communicate Deluxe/S7500 microphone fails with the
> > > following warning.
> > >
> > > [ 6.778995] usb 2-1.2.2.2: Warning! Unlikely big volume range (=3072),
> > > cval->res is probably wrong.
> > > [ 6.778996] usb 2-1.2.2.2: [5] FU [Mic Capture Volume] ch = 1, val =
> > > 4608/7680/1
> > >
> > > Adding it to the list of devices in volume_control_quirks makes it work
> > > properly, fixing related typo.
> > >
> > > Signed-off-by: Con Kolivas <kernel@kolivas.org>
> >
> > Applied (with Cc to stable), thanks.
>
> (Apologies for google mail defaulting to html, resending with a proper mail
> client)
>
> You're welcome. As there appear to be a lot of these devices from the same
> manufacturer with the same error, and there are likely a lot of devices out
> there that are missed from this whitelist, do you think it would be worthwhile
> changing the code to detect the combination of unlikely big volume range and
> usb vendor of 0x046d and automatically try using the volume_control_quirk on
> them instead of a discrete whitelist?

Yeah, it sounds like a good idea!


thanks,

Takashi

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