Comment # 15 on bug 1069846 from
No, there is no direct control for I2C from HD-audio.  It's a different
component.

We may have a control over I2C, but it's the case mostly for Tablet and others.
In such a case, often HD-audio works as a sort of compatible mode while Windows
or others use I2S for the audio transfer and I2C for codec communication.


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