pci_set_power_state

Langue: en

Autres versions - même langue

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

Section: 9 (Appels noyau Linux)

Sommaire

NAME

pci_set_power_state - Set the power state of a PCI device

SYNOPSIS

int pci_set_power_state(struct pci_dev * dev, pci_power_t state);

ARGUMENTS

dev

PCI device to be suspended

state

PCI power state (D0, D1, D2, D3hot, D3cold) we're entering

DESCRIPTION

Transition a device to a new power state, using the Power Management Capabilities in the device's config space.

RETURN VALUE

-EINVAL if trying to enter a lower state than we're already in. 0 if we're already in the requested state. -EIO if device does not support PCI PM. 0 if we can successfully change the power state.