Andy Green schrieb: > Somebody in the thread at some point said: > Just saying that if the debug USB connector can do double duty as > "adapter power" that makes everyone happy. It doesn't have to be in a > place that stops thing lying on desks. > > | Confusion of end-user by 2 identical connectors, one of them, the really > | hard to find one, for (virtually everyday) power for host mode and > | useful for nothing else but (highly sophisticated) debug, the other for > | power *only* when not in OTG-mode, but you can do everything else with > | it... :-/ > | My 0.02EUR: A no-go, a no-NO-go. The appeal of simplicity of a coax > | power connector you probably find 10000 times more "chargers" for it > | everywhere in he world than for USB (e.g. my old nokia charger), you > | simply can't beat that. > > Power isn't the only consideration, we already thought about bringing > out debug USB connector to the outside world. If that is what we do, > then it is sitting there ready to eat power the same as the OTG > connector, and it makes sense to allow it.
And we lose our USB-OTG cert, which clearly states certified devices have to have "one, and *only* one, micro-USB-AB-receptacle" [2006-12-05 USB-OTG supplement rev_1.3, ยง3.2]. As we may expect this doesn't apply for internally only accessible debug-connectors, it surely will hit us with two (identical!!!) external USBcon. > It is a built-in solution > for what the Y cable is proposed to do. That's what I meant by saying "no more need for Y-cable" > Confusion can be managed by recessing the connector slightly, putting it > somewhere less obvious, marking them differently,(??????!!!??????) > etc. But it will need > to be managed. Confusion of the USB-cert-auth won't be manageable anyway ;-) Probably there is some reason for the coax connector for power on the N800 Nokia. They contributed on the OTG specs. /jOERG _______________________________________________ hardware mailing list [email protected] http://lists.openmoko.org/mailman/listinfo/hardware
