pci_find_ext_capability — Find an extended capability
int pci_find_ext_capability ( | struct pci_dev * dev, |
int cap); |
Returns the address of the requested extended capability structure
within the device's PCI configuration space or 0 if the device does
not support it. Possible values for cap:
PCI_EXT_CAP_ID_ERR Advanced Error Reporting
PCI_EXT_CAP_ID_VC Virtual Channel
PCI_EXT_CAP_ID_DSN Device Serial Number
PCI_EXT_CAP_ID_PWR Power Budgeting