Yup, I figured it out, that's the solution.

skipfire wrote: My guess is that solution requires that you connect to the SDA and clock pins as well.

I had previously assumed there was an I2C connection through the DSI port, but apparently not. At least not the same I2C port we can access through software.

dan.inden wrote:I can confirm that this works:

I've tried that code, and I get the error: "The system cannot find the file specified. Slave address was not acknowledged."

What am I missing here?