[alsa-devel] How is /proc/asound/cardX/eld#Y.Z generated?

[Takashi Iwai]

On Wed, 07 Oct 2015 06:21:57 +0200,
VDR User wrote:
> 
> Hi. I was wondering if someone can tell me how exactly the eld files
> are generated.

It's just showing the data passed.  Usually the graphics driver sets
ELD, and the hardware receives and transfers to the audio part.

> Additionally, if they can be overridden somehow.

No, there is no such a mechanism.

> The
> reason is if I start x while my tv is turned on, the eld reports only
> stereo audio capability for hdmi even though the tv is plugged into my
> surround receiver. I don't care what the tv reports, my surround
> receiver is 7.1 so I always want the eld to reflect my -actual- audio
> channel setup.

As mentioned, this is the information coming from the graphics side,
so the place to manage is rather the graphics driver.


Takashi