Name
of_pci_get_devfn —
Get device and function numbers for a device node
Synopsis
int of_pci_get_devfn ( | struct device_node * np) ; |
Arguments
np
Pointer to device node
Description
Parse the “reg” property which contains a standard 5-cell PCI resource
The return value is an 8-bit value that can
be passed to the PCI_SLOT
and PCI_FUNC
macros to extract the device
and function numbers respectively. On error a negative error code is
returned.
Return
PCI slot and function numbers on success, -EINVAL
on error.