Am Samstag, 20. August 2005 00:52 schrieb Pete Zaitcev:
> 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?
By the maximum amount of data transfered in one frame.
Regards
Oliver
-------------------------------------------------------
SF.Net email is Sponsored by the Better Software Conference & EXPO
September 19-22, 2005 * San Francisco, CA * Development Lifecycle Practices
Agile & Plan-Driven Development * Managing Projects & Teams * Testing & QA
Security * Process Improvement & Measurement * http://www.sqe.com/bsce5sf
_______________________________________________
[email protected]
To unsubscribe, use the last form field at:
https://lists.sourceforge.net/lists/listinfo/linux-usb-devel
