[Intel-gfx] HDMI CEC support

Jesse Barnes jbarnes at virtuousgeek.org
Thu Jun 30 19:49:45 CEST 2011


On Thu, 30 Jun 2011 18:37:13 +0100
Simon Farnsworth <simon.farnsworth at onelan.co.uk> wrote:

> On Thursday 30 June 2011, Jesse Barnes <jbarnes at virtuousgeek.org> wrote:
> > On Thu, 30 Jun 2011 18:19:20 +0100
> > 
> > Barry Scott <barry.scott at onelan.co.uk> wrote:
> > > The HW needs to support the 1 wire bidirectional bus using AV.Link
> > > prootocol on pin 13.
> > > 
> > > I bit of googling seems to confirm that Intel Integrated graphic on
> > > Windows can operate CEC. (I did not find chip level details).
> > > 
> > > We may be asked to get this going here. If we have access to the
> > > necesssary docs to work on this we'll supply patches for your
> > > consideration.
> > 
> > Great.  Docs are available at http://www.intellinuxgraphics.org if you
> > want to take a stab at this.  It would be a nice feature to have.
> > 
> Of the available docs, which one should I look in? I can't find any references 
> to pin 13 or CEC in any part of volume 3, and when I look at the search 
> results for HDMI, I can't find anything that even hints that pin 13 is 
> connected to a GPIO line or an AV.Link engine in the hardware.
> 
> I can only find references to HDMI in part 3 of volume 3, but, again, nothing 
> that indicates where I'd go hunting to find out how I get at the CEC pin.
> 
> Am I looking in the wrong place?

Hm I don't see any references either.  Lemme ask around...

-- 
Jesse Barnes, Intel Open Source Technology Center



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