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.