Re: musb AM335x: isoc out transfers to FS device via hub are broken

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On Mon, 30 Mar 2015, Johannes Stezenbach wrote:

> > Judging by your high-speed log, it looks like the host controller is 
> > not sending out the Start SPLIT transactions the way it should.
> 
> Yes, it happens consistently that the host send two SPLIT OUT
> packets in the same microframe.  So that explains the cause
> of the issue, the question is now if there is a workaround,
> but my expectations are low since the musb split packet handling
> is all done in hardware.

Is there perhaps a known erratum that mentions this?  It seems like a 
pretty serious problem, the sort of thing anyone would notice the first 
time they tried to play audio through a high-speed hub.

Alan Stern

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