Ahhh this makes a lot of sense! That explains why my multiplexer setup won't work! This is the mux I'm talking about:Another possibility is the USB C male to USB A male cable. AIUI those are intended to connect a USB A host port to a USB C device port not the other way around as you're doing.
https://thepihut.com/products/bidirecti ... 6665723265
But since I was connecting the central A port to a USB-C device, this connection only allows the connected device to be the gadget and not my Pi which is connected either on the multiplexers B or C ports.. So a USB-A based multiplexer is not usable for my task. Good to know!
Now the question remains, why I can't get a connection between a USB-C gadget and the PI as host to work via a direct USB-C to USB-C connection. I only get the pi as host working, when I include a USB-C (m) to USB-A (fm) adapter, together with a USB-C to A cable.
I have a USB cable tester here.. I should be able to test for this right? But the previously described problem with a C to C connection with the pi as host occurred with all the 4 C to C cable I had around.. What effect would this resistor have?Your cable may have resistors between one or both of the CC lines and ground at the USB C end which may be causing confusion.
Sorry I don't get that, what do you mean with "turning it over"?If it's a really dumb cable you could try turning it over at the USB C end.
Thx alot for your support!
Statistics: Posted by fl0w — Tue Aug 26, 2025 6:33 pm