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Annotation of embedaddon/pciutils/example.c, revision 1.1.1.1

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: }