If the PMIC *isn't* do it, nothing else would know about the available power.Are you sure the Pi5 PMIC is doing it on its own ? Might it have support from the RP1 ?If the PMIC on a Pi5 can do it, there should be something even less complex that just does the PD handshake and accepts as much current as the PSU can deliver. Given what was done with the Pi4, it might be doable with a few simple components, though a chip that jsut does the handshake might be cheaper...or, at least, cheaper to integrate onto the PCB.Regard a PD handshake in the hub, is there an hub IC that does this ? Might be the issue.
Yes, and that was fixed. It originally had 1 resistor where it needed two.]And I thought the Pi4 had problems/incompatibilities in this area ?
Statistics: Posted by W. H. Heydt — Wed Jan 29, 2025 2:03 am