Re: [ANN] HDMI CEC Status Update

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On 05/29/2017 11:53 PM, Hans Verkuil wrote:
For those who are interested in HDMI CEC support I made a little status
document that I intend to keep up to date:

https://hverkuil.home.xs4all.nl/cec-status.txt

My goal is to get CEC supported for any mainlined HDMI driver where the hardware
supports CEC.

If anyone is working on a CEC driver that I don't know already about, just drop
me an email so I can update the status.

I also started maintaining a list of DisplayPort to HDMI adapters that support CEC. If you have one that works and is not on the list, then please let me know. Seeing /dev/cecX is not enough, some adapters do not connect the CEC pin, so they won't be able to detect any other CEC devices. See the test instructions in the cec-status.txt file on how to make sure the adapter has a working CEC pin. I plan to do some more testing this week, so hopefully the list will expand.

Would you also like a list of known USB-C->HDMI adapters that do not work? I have a couple that advertise support at DPCD 0x3000 but are not wired correctly.

-Clint



Thanks!

    Hans
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