PCI_FIND_CAPABILITY

Section: Hardware Interfaces (9)
Updated: February 2011
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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  

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