USB inventor explains why the connector was not designed to be reversible

Re:USB inventor explains why the connector was not designed ... by Izkata on Monday October 09, 2023 @06:18PM (#37826157)

I mean, I feel like they prefer to keep using A-to-C or A-to-Micro because of power flow instead of packaging C-to-C (and from some quick Amazon searches, C output still looks rare, the majority of what I'm seeing is C input and A output on the power bank itself).

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Re:USB inventor explains why the connector was not designed ... by fragmede on Monday October 09, 2023 @06:20PM (#37826172)

Those C input ports are usually also output ports.

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Re:USB inventor explains why the connector was not designed ... by lxgr on Monday October 09, 2023 @06:43PM (#37826370)

Almost always, as I've noticed only after grabbing a friend's power bank and a C-to-lightning cable for a day trip...

I believe an USB-C device port is easier to implement than a host/power supply port, since the host is only allowed to supply Vbus after ensuring that it's connected to a device (by actively probing the resistor connected to the CC pins etc.), whereas a device port only needs to present that resistor. After all, even a passive C-to-micro-B cable can do that.

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Re:USB inventor explains why the connector was not designed ... by Izkata on Monday October 09, 2023 @07:17PM (#37826664)

See my other responses in this chain; the only power bank I have that has a USB-C port can't use it for output.

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Re:USB inventor explains why the connector was not designed ... by fragmede on Tuesday October 10, 2023 @03:31AM (#37829427)

And the ~dozen I've bought off of Amazon (Mostly Anker) can. shrug

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