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Annotation of embedaddon/pciutils/example.c, revision 1.1

1.1     ! misho       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: }