diff options
author | Martin Mares <mj@ucw.cz> | 2008-02-17 23:27:16 +0100 |
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committer | Martin Mares <mj@ucw.cz> | 2008-02-17 23:27:16 +0100 |
commit | bc46bc3902065d0209eb96fbe4d7dd92c2b534ee (patch) | |
tree | bfb8f323e57a683a9d5472894a75dd5f8d71492a /example.c | |
parent | 538a2423ae5a3af5ec26bb0b943df5b19c35dc9f (diff) | |
download | pciutils-bc46bc3902065d0209eb96fbe4d7dd92c2b534ee.tar.gz |
Moved the example program from lib/example.c to example.c.
Also, include it in the default targets, so that we always check
that it builds correctly.
Diffstat (limited to 'example.c')
-rw-r--r-- | example.c | 32 |
1 files changed, 32 insertions, 0 deletions
diff --git a/example.c b/example.c new file mode 100644 index 0000000..c7e4e8a --- /dev/null +++ b/example.c @@ -0,0 +1,32 @@ +/* + * 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; + + 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("%02x:%02x.%d vendor=%04x device=%04x class=%04x irq=%d (pin %d) base0=%lx\n", + dev->bus, dev->dev, dev->func, dev->vendor_id, dev->device_id, + dev->device_class, dev->irq, c, dev->base_addr[0]); + } + pci_cleanup(pacc); /* Close everything */ + return 0; +} |