1 2 extern int acpi_suspend(u32 state); 3 4 extern void acpi_enable_wakeup_devices(u8 sleep_state); 5 extern void acpi_disable_wakeup_devices(u8 sleep_state); 6 7 extern struct list_head acpi_wakeup_device_list; 8 extern struct mutex acpi_device_lock; 9