[alsa-devel] Why analog loopback of sigmatel devices got removed?

[Takashi Iwai]

At Fri, 19 Jun 2009 11:21:41 +0300,
Maxim Levitsky wrote:
> 
> On Fri, 2009-06-19 at 08:32 +0200, Takashi Iwai wrote:
> > At Fri, 19 Jun 2009 02:50:35 +0300,
> > Maxim Levitsky wrote:
> > > 
> > > Hi,
> > > 
> > > Due to lack of time, I didn't update kernel on my desktop system.
> > > Now I notice that analog loopback go removed. Why?
> > 
> > Because it harms than helps more often.  I've got tons of bug reports
> > and been upset just because users blindly set "Analog Loopback" mixer
> > switch and lost their sound output.  This is no mixer element that
> > behaves intuitively -- it shuts out PCM output instead of adding the
> > analog loopback like other hardwares.
> 
> Here it doesn't shut PCM.
> I just hear input in headphones, mixed with output.
> I suspect that this feature might not work correctly on newer devices
> that ones I have added.

Possibly...


Takashi