You could enable a little debug in ehci and check if it says
something about the data toggle.  It's a start.
The places where I can imagine problems is when you get
short transfers.

	-- Lennart


Vincent wrote:
> Lennart Augustsson a écrit :
> 
>> Split transactions only happen for non-high speed devices.
>> A lost interrupt shouldn't give thw wrongs CSW, just missing data.
>>
>> It could be a data toggle problem again.  We've had those before.
> 
> 
> Any method to check that out ?
> 
> Thanks again for the help.
> Vincent
>