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.TH "USB_EPNUM_TO_EP_DESC" "9" "17 July 2003" "" ""

.SH NAME
usb_epnum_to_ep_desc \- get the endpoint object with a given endpoint number
.SH SYNOPSIS
.sp
\fB
.sp
struct usb_endpoint_descriptor * usb_epnum_to_ep_desc  (struct usb_device * \fIdev\fB, unsigned \fIepnum\fB);
\fR
.SH "ARGUMENTS"
.TP
\fB\fIdev\fB\fR
the device whose current configuration is considered
.TP
\fB\fIepnum\fB\fR
the desired endpoint
.SH "DESCRIPTION"
.PP
This walks the device descriptor for the currently active configuration,
and returns a pointer to the endpoint with that particular endpoint
number, or null.
.PP
Note that interface descriptors are not required to assign endpont
numbers sequentially, so that it would be incorrect to assume that
the first endpoint in that descriptor corresponds to interface zero.
This routine helps device drivers avoid such mistakes.
.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.