pci_get_device — begin or continue searching for a PCI device by vendor/device id
struct pci_dev * pci_get_device ( | unsigned int | vendor, |
| unsigned int | device, | |
| struct pci_dev * | from); |
vendor
PCI vendor id to match, or PCI_ANY_ID to match all vendor ids
device
PCI device id to match, or PCI_ANY_ID to match all device ids
from
Previous PCI device found in search, or NULL for new search.
Iterates through the list of known PCI devices. If a PCI device is
found with a matching vendor and device, the reference count to the
device is incremented and a pointer to its device structure is returned.
Otherwise, NULL is returned. A new search is initiated by passing NULL
as the from argument. Otherwise if from is not NULL, searches continue
from next device on the global list. The reference count for from is
always decremented if it is not NULL.