@notjustbikes I mean I guess it's better than having USB-A sockets like they do in Spain... Like no thank you, I'd rather not plug my phone into an insecure USB port...
I insist the better option is to just give you a 240V socket, but this is def better than USB
@cody those USB-A sockets charge so slowly anyway. It's annoying that so many trains and buses are being built with these USB ports while the world is moving to USB-PD over USB-C.
As for security issues, that's why I used to travel with a charge-only cable (with no data lines at all). They also sell USB condoms, but I have no idea if that's technically possible with USB-PD.
@notjustbikes@cody probably not, as PD relies on establishing a negociation of max power rating supported by both end, so the data channel is mandatory. Preventing this negociation from happening will probably default to low power charging
But you might be able to build some kind of USB-PD relay that would allow PD negotiations but no other data transfer, though I suspect it would be expensive.
@notjustbikes@implicitdeny There are "USB-PD breakout boards" that allow you to just get a requested voltage and amperage out of a USB-PD power supply and those aren't too expensive iirc, so combining that with another negotiator shouldn't be too expensive
@krt3k yeah, I know they exist. I own lots of them! 😁
But the trickier part is re-negotiating USB-PD to the phone. This isn't rocket science, and just would require a microcontroller and another USB-PD chip, but the cost would add up for a low volume commercial product.