pci_find_ext_capability (9) Linux Manual Page
pci_find_ext_capability – Find an extended capability
Synopsis
int pci_find_ext_capability(struct pci_dev *dev, int cap);Arguments
dev
-
- PCI device to query
cap
- capability code
Description
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