source: mainline/uspace/app/lspci/pci.c@ 892e4e1

/*
 * HelenOS PCI driver.
 *
 * (Based on public domain libpci example.c written by Martin Mares.)
 * Copyright (c) 2006 Jakub Jermar
 *
 * Can be freely distributed and used under the terms of the GNU GPL.
 */

/**
 * @addtogroup pci
 * @{
 */

#include <stdio.h>
#include <ddi.h>
#include <task.h>
#include <stdlib.h>
#include <errno.h>

#include "libpci/pci.h"

#define NAME            "PCI"

static struct pci_access *pacc;

int main(int argc, char *argv[])
{
        struct pci_dev *dev;
        unsigned int c;
        char buf[80];
        
        pacc = pci_alloc();           /* Get the pci_access structure */
        pci_init(pacc);               /* Initialize the PCI library */
        pci_scan_bus(pacc);           /* We want to get the list of devices */
        for(dev=pacc->devices; dev; dev=dev->next) {   /* Iterate over all devices */
                pci_fill_info(dev, PCI_FILL_IDENT | PCI_FILL_BASES | PCI_FILL_IRQ);
                c = pci_read_word(dev, PCI_CLASS_DEVICE); /* Read config register directly */
                printf("%02x:%02x.%d vendor=%04x device=%04x class=%04x irq=%d base0=%lx\n",
                        dev->bus, dev->dev, dev->func, dev->vendor_id, dev->device_id,
                        c, dev->irq, dev->base_addr[0]);
                printf("\t%s\n", pci_lookup_name(pacc, buf, sizeof(buf), PCI_LOOKUP_VENDOR | PCI_LOOKUP_DEVICE,
                        dev->vendor_id, dev->device_id));
        }

        pci_cleanup(pacc);
        return 0;
}

/**
 * @}
 */