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i2c over hdmi

Eli Chan
in Rockchip

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I am now working on Bionic Desktop for Orange Pi rk3399. I want to do something similar to what have been done on Raspberry. i.e to use hdmi ddc as i2c (i2c over hmdi)

http://blog.koalo.de/2013/11/i2c-over-hdmi.html

 

I could run i2cdump, ic2get and i2cwrite without any problem but I can't find the i2c device for hdmi ddc of my OrangePi rk3399. My wild guess is that I need to enable hdmi ddc by modifying the uboot folder. However, I don't know how to start with.

 

Can anyone give me some pointers?

 

Thanks in advance

 

Eli

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