[RFC][USB] powerpc: Workaround for the PPC440EPX USBH_23 errata

Alan Stern stern at rowland.harvard.edu
Sat Sep 6 01:17:03 EST 2008


On Fri, 5 Sep 2008, Vitaly Bordug wrote:

> > > Not every hub will work (none of available did so far), and it is
> > > often not an option for embedded device without rewiring.
> > 
> > It's odd that your hubs don't work.  What's wrong with them?
> > 
> 
> well, they do not have transaction translators then. Nothing really
> wrong

No.  If the hubs run at high speed then they must have transaction 
translators; it's required by the USB 2.0 specification.

Did you try using them with ohci-hcd not loaded?

Alan Stern




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