pci_find_next_ext_capability (9) Linux Manual Page
pci_find_next_ext_capability – Find an extended capability
Synopsis
int pci_find_next_ext_capability(struct pci_dev *dev, int start, int cap);Arguments
dev
-
- PCI device to query
start
- address at which to start looking (0 to start at beginning of list)
cap
- capability code
Description
Returns the address of the next matching extended capability structure within the device’s PCI configuration space or 0 if the device does not support it. Some capabilities can occur several times, e.g., the vendor-specific capability, and this provides a way to find them all.