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 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.