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Maybe make it an unshielded USB-A connector and don't implement pins 2 and 3, so there's only the 5v and ground pins.


If you have no way to reach the console, how do you know it's running Linux? Or doing anything at all really? The card has no way to display anything by itself.


Such is the tragedy of USB I suspect: all we need is serial ports, and it's extremely hard to prove that's all we'll be doing.


One could imagine a more sophisticated USB Condom that has a basic uC to implement (only) USB serial on both sides.


If you need all kinds of "condoms", each allowing a single protocol, you lose the "universal" part. It would be just as annoying as specialized adapters.

Also no one would have one for serial.




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