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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 <mjg59@srcf.ucam.org> Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org> Signed-off-by: Eric Anholt <eric@anholt.net>
11 lines
268 B
C
11 lines
268 B
C
#ifndef ACPI_BUTTON_H
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#define ACPI_BUTTON_H
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#include <linux/notifier.h>
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extern int acpi_lid_notifier_register(struct notifier_block *nb);
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extern int acpi_lid_notifier_unregister(struct notifier_block *nb);
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extern int acpi_lid_open(void);
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#endif /* ACPI_BUTTON_H */
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