Provided by: linux-doc-2.6.15_2.6.15-23.39_all bug

NAME
       usb_get_current_frame_number - return current bus frame number


SYNOPSIS
       int usb_get_current_frame_number  (struct usb_device * dev);


ARGUMENTS
       dev    the device whose bus is being queried


DESCRIPTION
       Returns  the current frame number for the USB host controller used with
       the given USB device. This can  be  used  when  scheduling  isochronous
       requests.

       Note   that   different   kinds   of  host  controller  have  different
       ‘‘scheduling horizons’’. While one type might support  scheduling  only
       32  frames  into the future, others could support scheduling up to 1024
       frames into the future.