[mythtv-users] HDMI-CEC ?

[Scott D. Davilla]

>CEC being on a separate pin is quite convenient for the manufacturers
>of the unit that started this thread - it means they don't have to
>have any circuitry to deal with the high speed video signals, and can
>just link teh pins across from one HDMI connector to the other.

You need more than just access to the CEC pin to fully implement 
hdmi-cec, you also need access to the i2c so you can find the root 
display device. The usb-cec device does this.