I have a follow-up question to this one.
I have a type C connector with 8 pins. No spec, type C female counterpart reveals G, Vcc, A2, A3, A6, A7. Remaining two pins do not respond to anything. G-Vcc shows 5.10V. A6-A7 shows 38 kOhm. G-A5/G-B5 on female counterpart shows 4.84V.
When using this to connect high-speed USB C device, system gives the following output:
[330114.311007] usb 3-2: new low-speed USB device number 61 using xhci_hcd
[330114.439054] usb 3-2: device descriptor read/64, error -71
[330114.675048] usb 3-2: device descriptor read/64, error -71
[330114.910996] usb 3-2: new low-speed USB device number 62 using xhci_hcd
[330115.039040] usb 3-2: device descriptor read/64, error -71
[330115.274963] usb 3-2: device descriptor read/64, error -71
[330115.382963] usb usb3-port2: attempt power cycle
[330116.034978] usb 3-2: new low-speed USB device number 63 using xhci_hcd
[330116.035567] usb 3-2: Device not responding to setup address.
[330116.243594] usb 3-2: Device not responding to setup address.
I'm new into this topic, and I've searched the available sources. Seems that the proper resistor is missing, but the problem is that I don't have an A5 pin! One of the tiny lanes on the plug itself does respond to A5, but why its pin is hidden by design? What could be done in this case?
Best Answer
If you see the initial connect event as Low Speed while the device is actually a HS, it means that green and white wires are swapped. The plug should have A5 connected to ground via 5.1k resistor, it should be somewhere on the PCB interposer.