.\" This documentation was generated from the book titled "The Linux-USB Host Side API", which is part of the Linux kernel source. .\" .\" This documentation comes with the following legal notice: .\" .\" 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. .\" .\" 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. .\" .\" 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 .\" .\" For more details see the file COPYING in the source .\" distribution of Linux. .\" .\" For comments on the formatting of this manpage, please contact Michael Still .\" This manpage has been automatically generated by docbook2man .\" from a DocBook document. This tool can be found at: .\" .\" Please send any bug reports, improvements, comments, patches, .\" etc. to Steve Cheng . .TH "USB_REGISTER_DEV" "9" "07 August 2003" "" "" .SH NAME usb_register_dev \- register a USB device, and ask for a minor number .SH SYNOPSIS .sp \fB .sp int usb_register_dev (struct usb_interface * \fIintf\fB, struct usb_class_driver * \fIclass_driver\fB); \fR .SH "ARGUMENTS" .TP \fB\fIintf\fB\fR pointer to the usb_interface that is being registered .TP \fB\fIclass_driver\fB\fR pointer to the usb_class_driver for this device .SH "DESCRIPTION" .PP This should be called by all USB drivers that use the USB major number. If CONFIG_USB_DYNAMIC_MINORS is enabled, the minor number will be dynamically allocated out of the list of available ones. If it is not enabled, the minor number will be based on the next available free minor, starting at the class_driver->minor_base. .PP This function also creates the devfs file for the usb device, if devfs is enabled, and creates a usb class device in the sysfs tree. .PP \fBusb_deregister_dev\fR must be called when the driver is done with the minor numbers given out by this function. .PP Returns -EINVAL if something bad happens with trying to register a device, and 0 on success. .SH "ABOUT THIS DOCUMENT" .PP This documentation was generated with kernel version 2.6.0.