PCI_FIND_CAPABILITY(9)                 Hardware Interfaces                 PCI_FIND_CAPABILITY(9)



NAME
       pci_find_capability - query for devices' capabilities

SYNOPSIS
       int pci_find_capability(struct pci_dev * dev, int cap);

ARGUMENTS
       dev
           PCI device to query

       cap
           capability code

DESCRIPTION
       Tell if a device supports a given PCI capability. Returns the address of the requested
       capability structure within the device's PCI configuration space or 0 in case the device
       does not support it. Possible values for cap:

       PCI_CAP_ID_PM Power Management PCI_CAP_ID_AGP Accelerated Graphics Port PCI_CAP_ID_VPD
       Vital Product Data PCI_CAP_ID_SLOTID Slot Identification PCI_CAP_ID_MSI Message Signalled
       Interrupts PCI_CAP_ID_CHSWP CompactPCI HotSwap PCI_CAP_ID_PCIX PCI-X PCI_CAP_ID_EXP PCI
       Express

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