Re:USB4 Specification
by cjensen on Tuesday September 03, 2019 @05:45PM
(#20871509)
The USB-C Standard explicitly forbids use of USB-anything to USB-C adapters. Buy a USB-C to USB-other cable instead of trying to light your computer on fire.
The reason it is forbidden is because using two adapters you can convert a USB-C cable into a USB-A to USB-A cable. USB-A ports are not required to handle exciting and unexpected voltage on the wrong pins.
Re:USB4 Specification
by cesarb on Tuesday September 03, 2019 @06:29PM
(#20871919)
The prohibition is only against USB-anything to USB-C socket. Adapters to USB-C plug are allowed (and can't create the invalid combination you just described).
The reason it is forbidden is because using two adapters you can convert a USB-C cable into a USB-A to USB-A cable. USB-A ports are not required to handle exciting and unexpected voltage on the wrong pins.