On Fri, 19 Aug 2005 11:04:31 -0400 (EDT), Alan Stern <[EMAIL PROTECTED]> wrote:
> On Thu, 18 Aug 2005, Pete Zaitcev wrote:

> > Just queue two URBs and voila.
> 
> It's not that simple.  If you queue two bulk URBs, they will generally 
> both execute in the same frame.

But only one will complete if the device supplies data for one.

> To do what Uwe wants, it will be necessary to have a driver or program 
> wake up every millisecond to submit a bulk URB.  That can be done, 
> although not reliably.  And only if the computer has its timer interrupt 
> rate set at 1000 Hz or higher (which isn't true of all platforms).

How is it different from interrupt URBs?

-- Pete


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