Hi Casey.

I did nearly the same with my USB2.0  hub that has a Standard B receptacle for the 'uplink' port.  I wanted to connect it to the OTG on the Tobi board as the other USB interface was not working on my Tobi.  I purchased the USB mini A to mini B cable from Gumstix, but still needed to interwork it to either the hub, or the cable (B-plug to A-plug) that came with the USB hub.

I purchased an adapter from amazon.com / SF cables.  In my case, it was a Standard A receptacle to mini USB B Receptacle adapter.
http://www.amazon.com/SF-Cable-Female-Mini-Adapter/dp/B005GPFIUG/ref=sr_1_3?ie=UTF8&qid=1322875065&sr=8-3

The hub worked fine using this connection topology.

SF cables seems to have quite an array of USB adapters, and at least in my case, they shipped pretty quickly.  I hope this doesn't come off as an 'ad'.  It took me several hours (and one misguided attempt to hack/solder my own cable) to figure out what I needed to buy... just thought I would share the info so that it might benefit someone else on the mail list.

Good luck!
-Nate





On Fri, Dec 2, 2011 at 6:55 PM, Casey St.Fleur <casey.stfleur@gmail.com> wrote:
Hey guy,

I received got Tobi and Overo fire modules today so I am looking
forward to developing my first project with them . I have a USB hub
that I would like to connect to the Tobi but it is a USB 1.1 hub.
Since it is only a full speed device I know I need to connect it to
the USB OTG port of the Tobi board. I also purchases the USB mini A to
mini B cable from Gumstix. The problem I am running into is that the
(powered) USB hub that I have  has a standard A connector on it, so i
need either a mini B to standard A receptacle, or many a OTG mini A to
standard A receptacle cable. My question is do you guys know of any
such cable. I've been able to find one online that i feel confident
about.

Thanks in Advance,
Casey

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