urb->interval differently interpreted via xhci for 2.0

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Hi all,

I'm the maintainter of the the USBDUX* devices.

They are USB 2.0 high speed devices. I use urb->interval to control the sampling rate of these devices. That works fine with the ehci driver. When I use the xhci driver it seems to be interpreting the urb->interval in a different way and/or ignoring it? I need essentially intervals of 1,2,4,8 microframes (125us, 250, 500, 1000us).

Best
/Bernd
 http://www.berndporr.me.uk/bh/

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