[alsa-devel] HDMI+SND_JACK_AVOUT

Pierre-Louis Bossart pierre-louis.bossart at linux.intel.com
Mon May 15 14:29:20 CEST 2017


Hi,
Does anyone know the reason why the Intel/HDaudio HDMI layers use 
SND_JACK_AVOUT as a jack type? This value is composite and ends up 
having the side effect of sending 2 independent input events to 
userspace (SW_LINEOUT_INSERT and SW_VIDEOOUT_INSERT) and confusing the 
Android logic which deals with wired accessories. Shouldn't we use just 
SND_JACK_VIDEOOUT instead? What is the reason or rationale behind the 
use of LINEOUT for HDMI/DP jack events?
Thanks
-Pierre

http://elixir.free-electrons.com/linux/latest/ident/SND_JACK_AVOUT


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