pci_find_slot

Langue: en

Autres versions - même langue

Version: June 2009 (debian - 07/07/09)

Section: 9 (Appels noyau Linux)

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NAME

pci_find_slot - locate PCI device from a given PCI slot

SYNOPSIS

struct pci_dev * pci_find_slot(unsigned int bus, unsigned int devfn);

ARGUMENTS

bus

number of PCI bus on which desired PCI device resides

devfn

encodes number of PCI slot in which the desired PCI device resides and the logical device number within that slot in case of multi-function devices.

DESCRIPTION

Given a PCI bus and slot/function number, the desired PCI device is located in system global list of PCI devices. If the device is found, a pointer to its data structure is returned. If no device is found, NULL is returned.

NOTE

Do not use this function any more; use pci_get_slot instead, as the PCI device returned by this function can disappear at any moment in time.