Thanks for the 'diagram' Alex.
I ordered the cables for this, and will give the OTG a go.

On Thu, Oct 27, 2011 at 6:57 PM, Alex Gibson <> wrote:
On 28/10/2011 9:43 AM, Nathan Young wrote:
> Thanks for the suggestion.  Unfortuantely, it did not work.  I tried
> both a powered 4-port USB2.0 hub and an unpowered 4 port USB2.0 hub on
> the Tobi Host port.  No activity in either lsusb or syslog.

Try the OTG port.

Get the cables from special computing or gumstix or else where digikey??

The special comp usb hub with ethernet come in very handy
at times as well

USB Mini-A to USB A Female OTG Cable

We use

gumstix overo -> tobi -> mini usb otg cable -> normal usb cable-> 4 port
dlink usb2 hub

Works nicely for usb wifi, usb bluetooth, usb soundcards , webcams ,
flash drives , usb jtag(for programming microcontrollers).
Also works well when powered from battery (mostly use sealed lead acid
gel cells with low voltage cutoff)

trying to get a couple of oscilliscopes going at the moment (image and
waveform capture)  via usb and
a logitech c910 webcam


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