SuSE 11.3 - man page for pci_get_subsys (suse section 9)
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PCI_GET_SUBSYS(9) Hardware Interfaces PCI_GET_SUBSYS(9)
pci_get_subsys - begin or continue searching for a PCI device by
struct pci_dev * pci_get_subsys(unsigned int vendor, unsigned int device,
unsigned int ss_vendor, unsigned int ss_device,
struct pci_dev * from);
PCI vendor id to match, or PCI_ANY_ID to match all vendor ids
PCI device id to match, or PCI_ANY_ID to match all device ids
PCI subsystem vendor id to match, or PCI_ANY_ID to match all vendor ids
PCI subsystem device id to match, or PCI_ANY_ID to match all device ids
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, 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.
Kernel Hackers Manual 2.6. July 2010 PCI_GET_SUBSYS(9)
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