1 /** @file 2 EDID Active Protocol from the UEFI 2.0 specification. 3 4 Placed on the video output device child handle that is actively displaying output. 5 6 Copyright (c) 2006 - 2018, Intel Corporation. All rights reserved.<BR> 7 SPDX-License-Identifier: BSD-2-Clause-Patent 8 9 **/ 10 11 #ifndef __EDID_ACTIVE_H__ 12 #define __EDID_ACTIVE_H__ 13 14 #define EFI_EDID_ACTIVE_PROTOCOL_GUID \ 15 { \ 16 0xbd8c1056, 0x9f36, 0x44ec, {0x92, 0xa8, 0xa6, 0x33, 0x7f, 0x81, 0x79, 0x86 } \ 17 } 18 19 /// 20 /// This protocol contains the EDID information for an active video output device. This is either the 21 /// EDID information retrieved from the EFI_EDID_OVERRIDE_PROTOCOL if an override is 22 /// available, or an identical copy of the EDID information from the 23 /// EFI_EDID_DISCOVERED_PROTOCOL if no overrides are available. 24 /// 25 typedef struct { 26 /// 27 /// The size, in bytes, of the Edid buffer. 0 if no EDID information 28 /// is available from the video output device. Otherwise, it must be a 29 /// minimum of 128 bytes. 30 /// 31 UINT32 SizeOfEdid; 32 33 /// 34 /// A pointer to a read-only array of bytes that contains the EDID 35 /// information for an active video output device. This pointer is 36 /// NULL if no EDID information is available for the video output 37 /// device. The minimum size of a valid Edid buffer is 128 bytes. 38 /// EDID information is defined in the E-EDID EEPROM 39 /// specification published by VESA (www.vesa.org). 40 /// 41 UINT8 *Edid; 42 } EFI_EDID_ACTIVE_PROTOCOL; 43 44 extern EFI_GUID gEfiEdidActiveProtocolGuid; 45 46 #endif 47