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author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-28 09:24:33 +0000 |
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committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-28 09:24:33 +0000 |
commit | 7a19c99f661602b67db95fd1d8aca5fe3a387441 (patch) | |
tree | 215ff04ec522779fa83acf394d296c2356c6b382 /example.c | |
parent | Initial commit. (diff) | |
download | pciutils-80b48659d5b3bdd36c7b3c9d0c0331ff0d08e44f.tar.xz pciutils-80b48659d5b3bdd36c7b3c9d0c0331ff0d08e44f.zip |
Adding upstream version 1:3.9.0.upstream/1%3.9.0upstream
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to '')
-rw-r--r-- | example.c | 37 |
1 files changed, 37 insertions, 0 deletions
diff --git a/example.c b/example.c new file mode 100644 index 0000000..7780e55 --- /dev/null +++ b/example.c @@ -0,0 +1,37 @@ +/* + * 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; +} |