PCI_FIND_CAPABILITY(9) Hardware Interfaces PCI_FIND_CAPABILITY(9)NAME
pci_find_capability - query for devicesĀ“ 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 deviceĀ“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
COPYRIGHTKernel Hackers Manual 2.6. November 2013 PCI_FIND_CAPABILITY(9)