[alsa-devel] [RFC PATCH 1/1] ASoC: soc-dapm: warn if no avaiable path found for widget kcontrol

Dong Aisheng b29396 at freescale.com
Thu Aug 2 09:08:10 CEST 2012

On Wed, Aug 01, 2012 at 08:15:16PM +0800, Mark Brown wrote:
> On Wed, Aug 01, 2012 at 03:49:53PM +0800, Dong Aisheng wrote:
> > On Mon, Jul 30, 2012 at 04:22:19AM +0800, Mark Brown wrote:
> > > This isn't a good idea, it's fairly common for widgets to have a "None"
> > > option which isn't expected to have an input.
> > What i changed is mux widgets, i'm wondering is it possible or correct
> > the mux widget has no input path?
> > If i understand correct, we may need set correct input path
> > for mux widget, or why we still need a mux?
> > Or can you help give an example that no input needed for mux widget?
> The above is the most common example - one of the inputs to a mux being
> a "no input" option which shouldn't be connected to anything.  A mux
> with no inputs at all would be silly, but having one (or sometimes a
> couple for various reasons) that isn't connected isn't unusual.

Thanks for the info.

Dong Aisheng

More information about the Alsa-devel mailing list