[digi_owl]

What people usually refer to as USB-C are 3 independent specs.

First there is the C plug and cable, including provisions for converting between C and the various A and B sizes. This is the spec that introduce various resistors to signal if the cable is a converter or (a very big or that has created much problems) if it can handle various watts at 5V.

then there is the power delivery spec that on paper can be used with any USB plug (yes, even your old A and B formats), and allows current to go in either direction at up to 20V.

And thirdly there is a continuation of the 3.0 data spec, 3.1, that include a provision for using various wires in the C cable in an alternate mode. This mode allows anything from digital video to PCI bus traffic to travel over the same cable, if both ends support the protocol traveling over the alternate mode wires. outside of alternate mode the 3.1 data spec can also be used with 3.0 A and B ports.

So even if your device have a C port, it may not be able to handle more than 5V at 0.5A and 1.0 data speeds...