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47 lines
1.5 KiB
C
47 lines
1.5 KiB
C
/** @file
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EDID Active Protocol from the UEFI 2.0 specification.
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Placed on the video output device child handle that is actively displaying output.
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Copyright (c) 2006 - 2018, Intel Corporation. All rights reserved.<BR>
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SPDX-License-Identifier: BSD-2-Clause-Patent
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**/
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#ifndef __EDID_ACTIVE_H__
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#define __EDID_ACTIVE_H__
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#define EFI_EDID_ACTIVE_PROTOCOL_GUID \
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{ \
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0xbd8c1056, 0x9f36, 0x44ec, {0x92, 0xa8, 0xa6, 0x33, 0x7f, 0x81, 0x79, 0x86 } \
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}
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///
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/// This protocol contains the EDID information for an active video output device. This is either the
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/// EDID information retrieved from the EFI_EDID_OVERRIDE_PROTOCOL if an override is
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/// available, or an identical copy of the EDID information from the
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/// EFI_EDID_DISCOVERED_PROTOCOL if no overrides are available.
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///
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typedef struct {
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///
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/// The size, in bytes, of the Edid buffer. 0 if no EDID information
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/// is available from the video output device. Otherwise, it must be a
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/// minimum of 128 bytes.
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///
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UINT32 SizeOfEdid;
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///
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/// A pointer to a read-only array of bytes that contains the EDID
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/// information for an active video output device. This pointer is
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/// NULL if no EDID information is available for the video output
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/// device. The minimum size of a valid Edid buffer is 128 bytes.
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/// EDID information is defined in the E-EDID EEPROM
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/// specification published by VESA (www.vesa.org).
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///
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UINT8 *Edid;
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} EFI_EDID_ACTIVE_PROTOCOL;
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extern EFI_GUID gEfiEdidActiveProtocolGuid;
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#endif
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