From 7e12715ecc47a8a59154afe2746e48998225bb69 Mon Sep 17 00:00:00 2001 From: Jesse Barnes Date: Thu, 10 Sep 2009 15:28:02 -0700 Subject: ACPI button: provide lid status functions Some drivers need to know when a lid event occurs and get the current status. This can be useful for when a platform firmware clobbers some hardware state at lid time, and a driver needs to restore things when the lid is opened again. Acked-by: Matthew Garrett Signed-off-by: Jesse Barnes Signed-off-by: Eric Anholt --- include/acpi/button.h | 10 ++++++++++ 1 file changed, 10 insertions(+) create mode 100644 include/acpi/button.h (limited to 'include/acpi') diff --git a/include/acpi/button.h b/include/acpi/button.h new file mode 100644 index 0000000..bb643a7 --- /dev/null +++ b/include/acpi/button.h @@ -0,0 +1,10 @@ +#ifndef ACPI_BUTTON_H +#define ACPI_BUTTON_H + +#include + +extern int acpi_lid_notifier_register(struct notifier_block *nb); +extern int acpi_lid_notifier_unregister(struct notifier_block *nb); +extern int acpi_lid_open(void); + +#endif /* ACPI_BUTTON_H */ -- cgit v1.1