Thank you Neil; After some more experimentation I found out that on the board I was using, the devices show up if I use the USB A port in the middle of the board but not on the port located near the edge.  I have yet to try my other robovero to see if the behavior is the same.  On the good port (center one) my webcam shows up as /dev/video0.

Thanks,
Brett


On Mon, Jan 30, 2012 at 11:28 AM, Neil MacMunn <neil@gumstix.com> wrote:
Hi Brett,

On Sat, Jan 28, 2012 at 2:03 PM, Brett Hemes <brett.hemes@gmail.com> wrote:
> Hello, I am playing with my robovero and just realized that the robovero
> itself doesnt seem to ever power the usb hub.  When I connect an external pc
> to the mini usb jack it powers oof the pc and I can see the devices on the
> pc.  If I disconnect the mini usb however, all the connected devices (usb
> wifi adapter and usb webcam) lose power.  Looking at the schematic, it seems
> that there is some switching circuitry that should be giving the bus power
> when an external pc is not connected.  Is this not true?

Yes this is the expected behaviour. Do you have an Overo mounted on
the RoboVero? I have used an Overo Fire + RoboVero + webcam (without
the console connected) to stream video before. The camera showed up as
/dev/video0 as I recall.

-
Neil

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