Provided by: linux-doc-2.6.15_2.6.15-23.39_all
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);
dev PCI device to be suspended
state PCI power state (D0, D1, D2, D3hot, D3cold) we’re entering
Transition a device to a new power state, using the Power Management
Capabilities in the device’s config space.
-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.