[pulseaudio-discuss] Hal detect and multiple outputs

Lennart Poettering lennart at poettering.net
Fri May 23 17:09:02 PDT 2008

On Fri, 23.05.08 19:50, Jon Smirl (jonsmirl at gmail.com) wrote:

> >  > Yes, of course. Would be awesome. However, neither HAL nor ALSA
> >  >  provide enough information about whether the SPDIF and analog outputs
> >  >  are exclusive to each other or not.
> >  >
> >  >  If they are not exclusive (which is the case on most devices) we need
> >  >  to be able to switch the output during runtime.
> Are you sure they aren't exclusive most of the time? S/PDIF is
> assigned a separate slot in both the HDA and AC97 protocols. That
> makes me think that they should be exclusive in most hardware. Now of
> course the driver may be cloning the output in software.

See what Takashi has to say about this:


Scroll down to "The question remains: what exactly is ...?"


Lennart Poettering                        Red Hat, Inc.
lennart [at] poettering [dot] net         ICQ# 11060553
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