USB host

[William Voorhees]

For GTA02 we will most likely supply
power to the USB in host mode!

Awesome, is this news or did I just find out?

-Will

On 8/18/07, Harald Welte <laforge at openmoko.org> wrote:
>
> Guys, hardware questions go to neo1973-hardware, not to community !!
>
> On Mon, Aug 13, 2007 at 04:35:38PM +0200, Lars Hallberg wrote:
> > Giles Jones skrev:
> >> Marcin Domanski <groups at kabturek.info> wrote :
> >>> Yep it shouldn't be a problem - let's take an usb hub with external
> >>> power supply - connect it to neo and then connect the device to the
> >>> hub. I dont know how's the support for it but its an idea :)
> >> Here's how you solve the power issue:
> >>
> http://www.radioshack.com/sm-cyberpower-4-port-battery-powered-hub--pi-2259675.html
> >> A rechargable battery powered USB hub.
> >
> > I'm still not clear over this...
> >
> >  1) Will it be possible to charge the neo over the usb connection while
> the
> > neo is in host mode.
>
> for Neo1973 GTA01: definitely yes.  For GTA02 we will most likely supply
> power to the USB in host mode, so that doesn't work, at least not
> without complicated hacks ;)
>
> > Will that raise special demand on the hub?
>
> yes, or a special cable.
>
> > A flexible powered hub (Wall, external battery pack, car-power(12V)... )
> > that have any 'extra' function that the neo needs/benefits from would be
> > the perfect companion... almost a obligatory companion to the neo...
> But...
> > exactly what does it take to make such a beast?
> >
>
> We did think about this for some time, and actually I've designed the
> architecture of such a device fairly far.   The idea was to even further
> integrate that with the debug board, i.e. debug board plus
> battery-powered hub in one device :)
>
> But now that GTA01 is not really running at any reasonable quanatity,
> and GTA02 will be able to supply 5V in host mode, it was abandoned.
> We'd rather get GTA02 finished, then spend time on accessories that only
> make sense for GTA01.
>
> --
> - Harald Welte <laforge at openmoko.org>
> http://openmoko.org/
>
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