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.TH "USB_GET_CURRENT_FRAME_NUMBER" "9" "17 July 2003" "" ""

.SH NAME
usb_get_current_frame_number \- return current bus frame number
.SH SYNOPSIS
.sp
\fB
.sp
int usb_get_current_frame_number  (struct usb_device * \fIdev\fB);
\fR
.SH "ARGUMENTS"
.TP
\fB\fIdev\fB\fR
the device whose bus is being queried
.SH "DESCRIPTION"
.PP
Returns the current frame number for the USB host controller
used with the given USB device.  This can be used when scheduling
isochronous requests.
.PP
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.
.SH "ABOUT THIS DOCUMENT"
.PP
This documentation is free software; you can redistribute
it and/or modify it under the terms of the GNU General Public
License as published by the Free Software Foundation; either
version 2 of the License, or (at your option) any later
version.
.PP
This program is distributed in the hope that it will be
useful, but WITHOUT ANY WARRANTY; without even the implied
warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
See the GNU General Public License for more details.
.PP
You should have received a copy of the GNU General Public
License along with this program; if not, write to the Free
Software Foundation, Inc., 59 Temple Place, Suite 330, Boston,
MA 02111-1307 USA
.PP
For more details see the file COPYING in the source
distribution of Linux.
.PP
If you have comments on the formatting of this manpage, then please contact
Michael Still (mikal@stillhq.com).
.PP
This documentation was generated with kernel version 2.5.71.