4 ms·
Data channel: no is a charging-only cable, *preferred* for dealing with untrusted sources of power. While it might violate spec it has a very valid use case.
by LorenPechtel 3y ago
Data channel: no is a charging-only cable, *preferred* for dealing with untrusted sources of power. While it might violate spec it has a very valid use case.
- tonymet 3y agoyou are right, i have many "primitive" usb-c devices that only work with a charge-only cable.
- Dylan16807 3y agoSo you're saying the data pins inside the device are attached to something, and when that something makes a connection it stops the device from drawing power? Does this happen when you plug them into chargers and when you plug them into hubs?
- tonymet 3y agoIf I use a usb-c - usb-c cable on a PD charger nothing happens. When i use a “Dumb” usb-A to usb-c cable charging works.
- Dylan16807 3y agoThis happens with some devices. It would have been better if the standard had made that failure mode impossible, but it's not the data lines causing the problem. They failed to put a resistor in the device that connects one of the sense pins.