>>>Yeah, I think interrupt URB's will vary significantly regardless. Too
>>>many limitation withs UHCI.
>>
>>Could you elaborate a bit?  The functionality is there, from what
>>I've seen, and there are no code comments about particular silicon
>>quirks that might be interfering.
> 
> 
> Not silicon quirks, but more design limitations.
> 
> To honor the period would be very complicated. That's why we try our
> best to fit it into some predefined periods.

Right now the URB submit logic forces periods to be binary powers
of two; is that what you meant?  I agree that other periods would
be annoying, the hcd would always be patching the schedule and
could never realistically share things.

All the HCDs have had that expectation for a while now.

- Dave




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