On Sat, 2004-11-13 at 11:11 -0500, Alan Stern wrote:
> On Fri, 12 Nov 2004, omar kfitz wrote:

> > Actually my supervisor provided me with an A to A USB cable that doesn't
> > respect USB norms.
> 
> Where did he get the cable?  I never heard of such a thing -- no 
> existing hardware would be able to use it.

One of our boards has a type A socket which can be swapped between host
and device mode, by swapping the physical connection between the
PXA2xx's internal device controller and an external host controller.
Technically it is just a header with a type-A socket breakout but we do
not make a type-B breakout and so we use A to A cables. We buy these in
rather than making them ourselves so I've always assumed we are not the
only ones who do something like this -- although I couldn't point you to
another example.

I don't know what the specifications say about having a device
controller behind a type A socket, I suspect it frowns upon it.

Ian.
-- 
Ian Campbell



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