PCI_FIND_EXT_CAPABIL(9)                Hardware Interfaces                PCI_FIND_EXT_CAPABIL(9)



NAME
       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

COPYRIGHT
Kernel Hackers Manual 4.8.                 January 2017                   PCI_FIND_EXT_CAPABIL(9)