release/src/router/libusb/examples/lsusb.c

   1 /*
   2  * libusb-0.1 example program
   3  * Copyright (C) 2008 Daniel Drake <dsd@gentoo.org>
   4  *
   5  * This library is free software; you can redistribute it and/or
   6  * modify it under the terms of the GNU Lesser General Public
   7  * License as published by the Free Software Foundation; either
   8  * version 2.1 of the License, or (at your option) any later version.
   9  *
  10  * This library is distributed in the hope that it will be useful,
  11  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  12  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  13  * Lesser General Public License for more details.
  14  *
  15  * You should have received a copy of the GNU Lesser General Public
  16  * License along with this library; if not, write to the Free Software
  17  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
  18  */
  19
  20 #include <stdio.h>
  21 #include <usb.h>
  22
  23 int main(void)
  24 {
  25         struct usb_bus *busses;
  26         struct usb_bus *bus;
  27
  28         usb_init();
  29         usb_find_busses();
  30         usb_find_devices();
  31
  32         busses = usb_get_busses();
  33         for (bus = busses; bus; bus = bus->next) {
  34                 struct usb_device *dev;
  35                 for (dev = bus->devices; dev; dev = dev->next) {
  36                         printf("%04x:%04x\n",
  37                                 dev->descriptor.idVendor, dev->descriptor.idProduct);
  38                 }
  39         }
  40
  41         return 0;
  42 }
  43