arm-netbook August 2017

arm-netbook@lists.phcomp.co.uk

23 participants
32 discussions

Re: [Arm-netbook] HDMI v1.4 Audio Return and Ethernet channels
by Andrew Bolin 01 Aug '17

01 Aug '17

> > so *i'm* not quotes considering it quotes - if it's there and there's > a linux kernel module it's there, people can compile it and use it. > > l. > Can't use it if the pin has no connection to the CPU! In the last screenshots I saw ( http://hands.com/~lkcl/eoma/a20_hdmi_review/scrn2.png ), pin 2 HEAC+ (ethernet/ARC) is not connected to anything. Pin 1 (HEAC- & HPD) does go somewhere, but it's of no use for these functions by itself. CEC does seem to be routed and is mentioned on the A20 info page. No SBC that I've seen actually uses these functions (unfortunately). - Andrew.

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HDMI v1.4 Audio Return and Ethernet channels
by Richard Wilbur 01 Aug '17

01 Aug '17

Luke, Have you considered using the Audio Return channel in HDMI v1.4 to send digital multi-channel sound back to the EOMA68-A20? How about the Ethernet channel (also in HDMI v1.4)? Does the processor support these? They are optional capabilities of HDMI v1.4 and I only ask because it would change the routing. Sincerely, Richard

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arm-netbook August 2017