[alsa-devel] [RFC v3 7/7] ASoC: hdmi-codec: Add ELD control

[Takashi Iwai]

On Tue, 19 Jan 2016 13:00:05 +0100,
Jyri Sarha wrote:
> 
> On 01/12/16 17:38, Philipp Zabel wrote:
> > Exporting the ELD bytes to userspace allows an application to select
> > an appropriate audio format depending on the current capabilities of
> > the connected HDMI sink device.
> >
> 
> This looks good, but I was unable to test it. Obviously amixer or 
> alsamixer is unable to show anything about an ELD mixer element,

You can use amixer cget command to retrieve the information.

> but 
> shouldn't there be something about it shown under /proc/asound/card0/, 
> or am I mistaken.

It's specific to driver.  HD-audio has one, but it doesn't show the
whole ELD but only parsed contents.


Takashi