[alsa-devel] Restore state around suspend/resume

[Takashi Iwai]

At Sun, 30 Nov 2008 09:30:37 -0800,
Dan Nicholson wrote:
> 
> On Sun, Nov 30, 2008 at 9:22 AM, Takashi Iwai <tiwai at suse.de> wrote:
> > At Sun, 30 Nov 2008 09:10:32 -0800,
> > Dan Nicholson wrote:
> >>
> >> On Sun, Nov 30, 2008 at 9:06 AM, Takashi Iwai <tiwai at suse.de> wrote:
> >> > At Sun, 30 Nov 2008 08:22:49 -0800,
> >> > Dan Nicholson wrote:
> >> >>
> >> >> On Sun, Nov 30, 2008 at 1:01 AM, Takashi Iwai <tiwai at suse.de> wrote:
> >> >> > I don't know who introduced it, but maybe it was a workaround...
> >> >>
> >> >> Yeah, I'm sure it was a workaround, but we're trying to get rid of the
> >> >> unnecessary ones now.
> >> >
> >> > Even for drivers without PM support, alsactl alone is useless.
> >> > So I suggest you to remove it.
> >>
> >> I'm sorry, but why useless? It seems that it would be useful to
> >> restore state from userspace if the driver isn't doing that on its
> >> own.
> >
> > Read alsactl "alone".  Without the combination of module unloading and
> > reloading, it's useless.
> 
> So, are you saying that all drivers will maintain their state until
> they are unloaded?

The drivers supporting PM do it, yes.


Takashi
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