[alsa-devel] question on snd_power_change_state()

[Takashi Iwai]

At Fri, 11 Mar 2011 13:53:13 +0000,
Mark Brown wrote:
> 
> On Fri, Mar 11, 2011 at 02:13:12PM +0100, Takashi Iwai wrote:
> > Oliver Neukum wrote:
> 
> > > A helper for restoring all mixer settings that a device has lost due to a loss
> > > of power.
> 
> > No.  It's driver-specific.
> 
> If you're working within ASoC the register cache code has support for
> syncing back to hardware.

Right.

But usb-audio has no register (not only it doesn't using ASoC :)


Takashi