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