MdePkg/Include/Protocol/EdidDiscovered.h

   1 /** @file
   2   EDID Discovered Protocol from the UEFI 2.0 specification.
   3
   4   This protocol is placed on the video output device child handle. It represents
   5   the EDID information being used for the output device represented by the child handle.
   6
   7   Copyright (c) 2006 - 2018, Intel Corporation. All rights reserved.<BR>
   8   SPDX-License-Identifier: BSD-2-Clause-Patent
   9
  10 **/
  11
  12 #ifndef __EDID_DISCOVERED_H__
  13 #define __EDID_DISCOVERED_H__
  14
  15 #define EFI_EDID_DISCOVERED_PROTOCOL_GUID \
  16   { \
  17     0x1c0c34f6, 0xd380, 0x41fa, {0xa0, 0x49, 0x8a, 0xd0, 0x6c, 0x1a, 0x66, 0xaa } \
  18   }
  19
  20 ///
  21 /// This protocol contains the EDID information retrieved from a video output device.
  22 ///
  23 typedef struct {
  24   ///
  25   /// The size, in bytes, of the Edid buffer. 0 if no EDID information
  26   /// is available from the video output device. Otherwise, it must be a
  27   /// minimum of 128 bytes.
  28   ///
  29   UINT32   SizeOfEdid;
  30
  31   ///
  32   /// A pointer to a read-only array of bytes that contains the EDID
  33   /// information for an active video output device. This pointer is
  34   /// NULL if no EDID information is available for the video output
  35   /// device. The minimum size of a valid Edid buffer is 128 bytes.
  36   /// EDID information is defined in the E-EDID EEPROM
  37   /// specification published by VESA (www.vesa.org).
  38   ///
  39   UINT8    *Edid;
  40 } EFI_EDID_DISCOVERED_PROTOCOL;
  41
  42 extern EFI_GUID gEfiEdidDiscoveredProtocolGuid;
  43
  44 #endif