#ifndef __ACPI_VIDEO_H
  #define __ACPI_VIDEO_H

  #include <linux/errno.h> /* for ENODEV */
  
  struct acpi_device;

  #define ACPI_VIDEO_CLASS	"video"

  #define ACPI_VIDEO_DISPLAY_CRT  1
  #define ACPI_VIDEO_DISPLAY_TV   2
  #define ACPI_VIDEO_DISPLAY_DVI  3
  #define ACPI_VIDEO_DISPLAY_LCD  4
  
  #define ACPI_VIDEO_DISPLAY_LEGACY_MONITOR 0x0100
  #define ACPI_VIDEO_DISPLAY_LEGACY_PANEL   0x0110
  #define ACPI_VIDEO_DISPLAY_LEGACY_TV      0x0200

  #if (defined CONFIG_ACPI_VIDEO || defined CONFIG_ACPI_VIDEO_MODULE)
  extern int acpi_video_register(void);

  extern void acpi_video_unregister(void);

  extern int acpi_video_get_edid(struct acpi_device *device, int type,
  			       int device_id, void **edid);

  #else
  static inline int acpi_video_register(void) { return 0; }

  static inline void acpi_video_unregister(void) { return; }

  static inline int acpi_video_get_edid(struct acpi_device *device, int type,
  				      int device_id, void **edid)
  {
  	return -ENODEV;
  }

  #endif
  
  #endif