[RFC v2 6/6] ASoC: hdmi-codec: Use HDMI notifications to add jack support
Mark Brown
broonie at kernel.org
Fri Jan 8 04:55:34 PST 2016
On Fri, Jan 08, 2016 at 10:46:23AM +0000, Russell King - ARM Linux wrote:
> Given that, I'd like to throw in here another detail: iirc, i915's
> HDMI exports the ELD to userspace via a control called "ELD" - see
> eld_bytes_ctl in sound/pci/hda/patch_hdmi.c. This allows userspace
> to monitor, and read the ELD including which compressed audio formats
> are supported. I'm not currently aware of anything that makes use of
> this, but as there is this precedent for exporting this information,
> maybe it should become a standard way, so that video playback
> applications can then select an appropriate audio stream depending on
> the current properties of the connected device?
That makes sense to me.
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