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   Hugo 雨果 (whynothugo@fosstodon.org)'s status on Thursday, 13-Nov-2025 16:06:15 JST Hugo 雨果

   I truly despise usb-c devices which ONLY charge with a USB-A-to-USB-C cable. If your prototype doesn’t charge with a regular USB-C cable, then you shouldn’t start production.

   #usb #usbc

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     Haelwenn /элвэн/ :triskell: (lanodan@queer.hacktivis.me)'s status on Thursday, 13-Nov-2025 16:06:15 JST Haelwenn /элвэн/ :triskell:

     in reply to
     @whynothugo I wonder how that can even happen, but well the U of USB should be dropped.
   • Embed this notice
     Hugo 雨果 (whynothugo@fosstodon.org)'s status on Thursday, 13-Nov-2025 16:21:32 JST Hugo 雨果

     in reply to

     • Haelwenn /элвэн/ :triskell:

     @lanodan IIRC, it’s because the device doesn’t implement the power delivery negotiation that’s part of the USB-C protocol. So it doesn’t really “speak” USB-C and it can’t negotiate power delivery with the charger. With a USB-A cable, the charger sends power without any negotiation.

     I’m sure I got some of the terminology tangentially wrong, but you get the general idea.

     Haelwenn /элвэн/ :triskell: likes this.