PCI_GET_CLASS(9) Hardware Interfaces PCI_GET_CLASS(9)NAMEpci_get_class - begin or continue searching for a PCI device by class
SYNOPSIS
struct pci_dev * pci_get_class(unsigned int class,
struct pci_dev * from);
ARGUMENTS
class
search for a PCI device with this class designation
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 class, 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.
COPYRIGHTKernel Hackers Manual 2.6. November 2013 PCI_GET_CLASS(9)
