[alsa-devel] Regression in sound/usb/

[Takashi Iwai]

At Tue, 3 Jul 2012 09:41:09 +0200,
Philipp Dreimann wrote:
> 
> On 2 July 2012 14:10, Daniel Mack <zonque at gmail.com> wrote:
> > On 01.07.2012 13:40, Philipp Dreimann wrote:
> >> Hello,
> >>
> >> my usb webcam, which happens to have a microphone too, stopped working
> >> using usb2 since I tried kernel 3.5-rc2. (It works using usb3.)
> >
> > Please try 3.5-rc5. A number of regressions were fixed just recently.
> >
> > Let me know if that version still causes problems.
> 
> It still does.

Try to pass ignore_ctl_error=1 to snd-usb-audio module.
If this works and no other problem happens, we can add a similar quirk
like some Logitech webcams.


Takashi