table of contents
| 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¶
| June 2024 | Kernel Hackers Manual 3.10 |