pci_set_power_state — Set the power state of a PCI device


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


struct pci_dev * dev

PCI device to handle.

pci_power_t state

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


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.