[alsa-devel] Adding ELD control to alsa-lib hdmi device

Hi, Now that I almost done with exposing a read-only ELD control for HDA/HDMI outputs, I was wondering how to read it from user-land. PulseAudio and others rely on the 'hdmi' device, and apparently I can't access this new ELD control, I have to use the 'hw:x,y' details. I really don't understand much to alsa-lib... Can I expose this new control through the ALSA configuration files where the hdmi device is defined? Or is there a way to infer the card and device number actually used by an alsa-lib plugin? Or do I have to add code to propagate the information from hardware-level to higher-level plugins? Thanks for your feedback! -Pierre