Benson Leung from the linked article... "The Figure 4–9 I posted above isn’t simply a rough guideline of one way of making a USB-C receptacle. It’s actually no

Benson Leung from the linked article... "The Figure 4–9 I posted above isn’t simply a rough guideline of one way of making a USB-C receptacle. It’s actually normative, meaning mandatory, required by the spec in order to call your system a compliant USB-C power sink. Just copy it." The reason this is wrong on the Pi is not because of "a huge matrix of incompatibility", but of ignorance to a mandatory design spec that is provided to everyone already. It seems to parallel crypto from a high level. Yes, USB-C can be complex. But they did the hard work here so: don't roll your own and use this free and complete reference implementation.