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gEfiSmmPowerButtonDispatch2ProtocolGuid

Include/Protocol/SmmPowerButtonDispatch2.h

PROTOCOL Information

PROTOCOL's Guid NamePROTOCOL's Guid
gEfiSmmPowerButtonDispatch2ProtocolGuid{ 0x1b1183fa, 0x1823, 0x46a7, {0x88, 0x72, 0x9c, 0x57, 0x87, 0x55, 0x40, 0x9d }}

Refer to Header File

MdePkg/Include/Protocol/SmmPowerButtonDispatch2.h