usb_reset.c
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00001 /* usbreset -- send a USB port reset to a USB device */
00002 
00003 /*
00004  * Copyright (c) 2014, JSK Robotics Lab, Inc.
00005  * All rights reserved.
00006  *
00007  * Redistribution and use in source and binary forms, with or without
00008  * modification, are permitted provided that the following conditions are met:
00009  *
00010  *     * Redistributions of source code must retain the above copyright
00011  *       notice, this list of conditions and the following disclaimer.
00012  *     * Redistributions in binary form must reproduce the above copyright
00013  *       notice, this list of conditions and the following disclaimer in the
00014  *       documentation and/or other materials provided with the distribution.
00015  *     * Neither the name of the Willow Garage, Inc. nor the names of its
00016  *       contributors may be used to endorse or promote products derived from
00017  *       this software without specific prior written permission.
00018  *
00019  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
00020  * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
00021  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
00022  * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
00023  * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
00024  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
00025  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
00026  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
00027  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
00028  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
00029  * POSSIBILITY OF SUCH DAMAGE.
00030  *
00031  *      Author: Ryohei Ueda (ueda@jsk.t.u-tokyo.ac.jp)
00032  */
00033 
00034 #include <stdio.h>
00035 #include <unistd.h>
00036 #include <fcntl.h>
00037 #include <errno.h>
00038 #include <sys/ioctl.h>
00039 
00040 #include <linux/usbdevice_fs.h>
00041 
00042 
00043 int main(int argc, char **argv)
00044 {
00045   const char *filename;
00046   int fd;
00047   int rc;
00048 
00049   if (argc != 2) {
00050     fprintf(stderr, "Usage: usbreset device-filename\n");
00051     return 1;
00052   }
00053   filename = argv[1];
00054 
00055   fd = open(filename, O_WRONLY);
00056   if (fd < 0) {
00057     perror("Error opening output file");
00058     return 1;
00059   }
00060 
00061   printf("Resetting USB device %s\n", filename);
00062   rc = ioctl(fd, USBDEVFS_RESET, 0);
00063   if (rc < 0) {
00064     perror("Error in ioctl");
00065     return 1;
00066   }
00067   printf("Reset successful\n");
00068 
00069   close(fd);
00070   return 0;
00071 }


openni2_camera
Author(s): Julius Kammerl
autogenerated on Tue Oct 3 2017 03:16:54