commands/simple/lspci.c

   1 /*
   2  * Copyright (c) 2009, Erik van der Kouwe
   3  * All rights reserved.
   4  *
   5  * Redistribution and use in source and binary forms, with or without
   6  * modification, are permitted provided that the following conditions are met:
   7  *
   8  * 1. Redistributions of source code must retain the above copyright notice,
   9  *    this list of conditions and the following disclaimer.
  10  * 2. Redistributions in binary form must reproduce the above copyright notice,
  11  *    this list of conditions and the following disclaimer in the documentation
  12  *    and/or other materials provided with the distribution.
  13  * 3. The name of the author may not be used to endorse or promote products
  14  *    derived from this software without specific prior written permission.
  15  *
  16  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
  17  * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
  18  * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO
  19  * EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
  20  * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
  21  * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
  22  * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
  23  * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
  24  * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
  25  * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  26  */
  27
  28 #include <minix/com.h>
  29 #include <stdio.h>
  30 #include <unistd.h>
  31
  32 int main(int argc, char **argv)
  33 {
  34         struct pciinfo_entry *entry;
  35         struct pciinfo pciinfo;
  36
  37         /* obtain a list of PCI devices from PM */
  38         if (getsysinfo(PM_PROC_NR, SI_PCI_INFO, &pciinfo) < 0)
  39         {
  40                 perror("getsysinfo failed");
  41                 return -1;
  42         }
  43
  44         /* print the list of devices */
  45         entry = pciinfo.pi_entries;
  46         while (pciinfo.pi_count-- > 0)
  47         {
  48                 printf("%.4X:%.4X %s\n", entry->pie_vid, entry->pie_did, entry->pie_name);
  49                 entry++;
  50         }
  51
  52         return 0;
  53 }