PCI_SET_POWER_STATE(9)

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 handle.

state
    PCI power state (D0, D1, D2, D3hot) to put the device into.

DESCRIPTION

Transition a device to a new power state, using the platform firmware and/or the device's PCI PM registers.

RETURN VALUE: -EINVAL if the requested state is invalid. -EIO if device does not support PCI PM or its PM capabilities register has a wrong version, or device doesn't support the requested state. 0 if device already is in the requested state. 0 if device's power state has been successfully changed.

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