Open source USB Type-C to HDMI Adapter

Re:Open source USB Type-C to HDMI Adapter by vsampath on Wednesday March 11, 2015 @11:05PM (#9189020)

For what it's worth, this appears to be an active dongle using a MegaChips device to do the DisplayPort to HDMI 2.0 conversion. USB Type-C alternate mode handles the passing of DisplayPort audio/video data from the GPU over the USB pins (ML0-3), and the MegaChips device converts that to HDMI 2.0 TMDS signaling.

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Re:Open source USB Type-C to HDMI Adapter by lsaferite on Thursday March 12, 2015 @09:21AM (#9190562)

Do you have a link to the datasheet for the DP-HDMI2 chip?

I tried searching based on the part number and apparently my google-fu was weak.

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Re:Open source USB Type-C to HDMI Adapter by vsampath on Thursday March 12, 2015 @05:36PM (#9194094)

No, my Google-fu also failed me. There's also an SPI ROM that is an input into the DP-HDMI2 chip, so there's likely firmware there that is not part of Google's open-sourcing.

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