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authorDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-15 18:30:56 +0000
committerDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-15 18:30:56 +0000
commitd3114e0edc60508fc1e44e6cd2733fb2a97cdaca (patch)
tree82d66db664dea6ee75010455b98b04f47fcc4a90 /example.c
parentInitial commit. (diff)
downloadpciutils-d3114e0edc60508fc1e44e6cd2733fb2a97cdaca.tar.xz
pciutils-d3114e0edc60508fc1e44e6cd2733fb2a97cdaca.zip
Adding upstream version 1:3.11.1.upstream/1%3.11.1
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'example.c')
-rw-r--r--example.c37
1 files changed, 37 insertions, 0 deletions
diff --git a/example.c b/example.c
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+/*
+ * The PCI Library -- Example of use (simplistic lister of PCI devices)
+ *
+ * Written by Martin Mares and put to public domain. You can do
+ * with it anything you want, but I don't give you any warranty.
+ */
+
+#include <stdio.h>
+
+#include "lib/pci.h"
+
+int main(void)
+{
+ struct pci_access *pacc;
+ struct pci_dev *dev;
+ unsigned int c;
+ char namebuf[1024], *name;
+
+ pacc = pci_alloc(); /* Get the pci_access structure */
+ /* Set all options you want -- here we stick with the defaults */
+ 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_CLASS); /* Fill in header info we need */
+ c = pci_read_byte(dev, PCI_INTERRUPT_PIN); /* Read config register directly */
+ printf("%04x:%02x:%02x.%d vendor=%04x device=%04x class=%04x irq=%d (pin %d) base0=%lx",
+ dev->domain, dev->bus, dev->dev, dev->func, dev->vendor_id, dev->device_id,
+ dev->device_class, dev->irq, c, (long) dev->base_addr[0]);
+
+ /* Look up and print the full name of the device */
+ name = pci_lookup_name(pacc, namebuf, sizeof(namebuf), PCI_LOOKUP_DEVICE, dev->vendor_id, dev->device_id);
+ printf(" (%s)\n", name);
+ }
+ pci_cleanup(pacc); /* Close everything */
+ return 0;
+}