LXR linux/include/acpi/button.h

   1/* SPDX-License-Identifier: GPL-2.0 */
   2#ifndef ACPI_BUTTON_H
   3#define ACPI_BUTTON_H
   4
   5#include <linux/notifier.h>
   6
   7#if IS_ENABLED(CONFIG_ACPI_BUTTON)
   8extern int acpi_lid_notifier_register(struct notifier_block *nb);
   9extern int acpi_lid_notifier_unregister(struct notifier_block *nb);
  10extern int acpi_lid_open(void);
  11#else
  12static inline int acpi_lid_notifier_register(struct notifier_block *nb)
  13{
  14        return 0;
  15}
  16static inline int acpi_lid_notifier_unregister(struct notifier_block *nb)
  17{
  18        return 0;
  19}
  20static inline int acpi_lid_open(void)
  21{
  22        return 1;
  23}
  24#endif /* IS_ENABLED(CONFIG_ACPI_BUTTON) */
  25
  26#endif /* ACPI_BUTTON_H */
  27