centos man page for pci_wake_from_d3

PCI_WAKE_FROM_D3(9)						Hardware Interfaces					       PCI_WAKE_FROM_D3(9)

NAME
       pci_wake_from_d3 - enable/disable device to wake up from D3_hot or D3_cold

SYNOPSIS
       int pci_wake_from_d3(struct pci_dev * dev, bool enable);

ARGUMENTS
       dev
	   PCI device to prepare

       enable
	   True to enable wake-up event generation; false to disable

DESCRIPTION
       Many drivers want the device to wake up the system from D3_hot or D3_cold and this function allows them to set that up cleanly -
       pci_enable_wake should not be called twice in a row to enable wake-up due to PCI PM vs ACPI ordering constraints.

       This function only returns error code if the device is not capable of generating PME# from both D3_hot and D3_cold, and the platform is
       unable to enable wake-up power for it.

COPYRIGHT
Kernel Hackers Manual 3.10					     June 2014						       PCI_WAKE_FROM_D3(9)