PCI_GET_SUBSYS(9) Hardware Interfaces PCI_GET_SUBSYS(9)NAME
pci_get_subsys - begin or continue searching for a PCI device by
vendor/subvendor/device/subdevice id
SYNOPSIS
struct pci_dev * pci_get_subsys(unsigned int vendor,
unsigned int device,
unsigned int ss_vendor,
unsigned int ss_device,
struct pci_dev * from);
ARGUMENTS
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
ss_vendor
PCI subsystem vendor id to match, or PCI_ANY_ID to match all vendor
ids
ss_device
PCI subsystem 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.
DESCRIPTION
Iterates through the list of known PCI devices. If a PCI device is
found with a matching vendor, device, ss_vendor and ss_device, a
pointer to its device structure is returned, and the reference count to
the device is incremented. 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.
COPYRIGHTKernel Hackers Manual 2.6. November 2013 PCI_GET_SUBSYS(9)