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techpressionyesterday at 6:34 AM2 repliesview on HN

I don’t know if it’s the spec or just a plethora of vendors that ignores it, but I have many things with a USB-C port that requires USB-A as source. USB-C to A to C works, yay dongles, but not just C to C. So maybe it’s not really breaking backwards compatibility, just a weird mix of a port and the communication being separate standards.


Replies

mrheosuperyesterday at 6:41 AM

because those usb-c ports do not follow the spec. If they had followed the spec from 1st day there would be no problem even now.

fragmedeyesterday at 7:10 AM

it's vendors just changing the physical port but not updating the electronics. specifically, a 5.1kΩ pull-up resistors on the CC1 and/or CC pins is needed on the host (was usb-a) side in order for the c to c cable to work.