PCI_BUS_FIND_CAPABIL(9) Hardware Interfaces PCI_BUS_FIND_CAPABIL(9)
NAME
pci_bus_find_capability - query for devices' capabilities
SYNOPSIS
int pci_bus_find_capability(struct pci_bus * bus, unsigned int devfn, int cap);
ARGUMENTS
bus
the PCI bus to query
devfn
PCI device to query
cap
capability code
DESCRIPTION
Like pci_find_capability but works for pci devices that do not have a pci_dev structure set up yet.
Returns the address of the requested capability structure within the device's PCI configuration space or 0 in case the device does not
support it.
COPYRIGHT
Kernel Hackers Manual 2.6. July 2010 PCI_BUS_FIND_CAPABIL(9)
