On Tuesday 26 January 2010, Felipe Balbi wrote: > > > >Thing is, supplying current is a bit more involved. If the > >board can't supply 300 mA, the USB configuration selection > >mechanism has to know that, so it never selects peripheral > >configurations which require that much current. > > but that's done already by the usb core, no ? It rules out configuration > based on the hub->power_budget (can't remember if the field is that > exact name). Yes, it handles that ... but where does the power budget come from? That's what I meant by "more involved". As in, the host/supplying side of the power equation can't be event driven like the peripheral/consuming side can. And that's another reason I think it's best to fully solve the common (peripheral, recharge-that-batter) case first. - Dave -- To unsubscribe from this list: send the line "unsubscribe linux-usb" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
