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pciutils

    1: /*
    2:  *	The PCI Library -- Example of use (simplistic lister of PCI devices)
    3:  *
    4:  *	Written by Martin Mares and put to public domain. You can do
    5:  *	with it anything you want, but I don't give you any warranty.
    6:  */
    7: 
    8: #include <stdio.h>
    9: 
   10: #include "lib/pci.h"
   11: 
   12: int main(void)
   13: {
   14:   struct pci_access *pacc;
   15:   struct pci_dev *dev;
   16:   unsigned int c;
   17:   char namebuf[1024], *name;
   18: 
   19:   pacc = pci_alloc();		/* Get the pci_access structure */
   20:   /* Set all options you want -- here we stick with the defaults */
   21:   pci_init(pacc);		/* Initialize the PCI library */
   22:   pci_scan_bus(pacc);		/* We want to get the list of devices */
   23:   for (dev=pacc->devices; dev; dev=dev->next)	/* Iterate over all devices */
   24:     {
   25:       pci_fill_info(dev, PCI_FILL_IDENT | PCI_FILL_BASES | PCI_FILL_CLASS);	/* Fill in header info we need */
   26:       c = pci_read_byte(dev, PCI_INTERRUPT_PIN);				/* Read config register directly */
   27:       printf("%04x:%02x:%02x.%d vendor=%04x device=%04x class=%04x irq=%d (pin %d) base0=%lx",
   28: 	     dev->domain, dev->bus, dev->dev, dev->func, dev->vendor_id, dev->device_id,
   29: 	     dev->device_class, dev->irq, c, (long) dev->base_addr[0]);
   30: 
   31:       /* Look up and print the full name of the device */
   32:       name = pci_lookup_name(pacc, namebuf, sizeof(namebuf), PCI_LOOKUP_DEVICE, dev->vendor_id, dev->device_id);
   33:       printf(" (%s)\n", name);
   34:     }
   35:   pci_cleanup(pacc);		/* Close everything */
   36:   return 0;
   37: }