Teensy 3.1 I2C "proxy"

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Thiakil

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I mainly need to get the EDID, which still allowing the HDMI device on the cable access to it.

Preferably using the i2c_t3 library, would it be possible to make an I2C proxy that listens on one bus as a ranged slave, and can then query/write the other bus on the same address? (substituting own data as required)

It sounds ok in theory, but I would assume the proxying would be happening in an ISR, which could be a problem...

If not, anyone know how compatible multiple masters are on a DDC/EDID bus? or if there's some other better way
 
That's almost what I'm after, though as my project does other things, I'd need to try modify it to use interrupts completely.

And still doesn't allow me to act as the target device when the actual target is not turned on.
 
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