Update Protocol for backward-compatible with EFI1.1.

[mirror_edk2.git] / MdePkg / Include / Protocol / DeviceIo.h

diff --git a/MdePkg/Include/Protocol/DeviceIo.h b/MdePkg/Include/Protocol/DeviceIo.h
index 643c810a3483c3abe24d5d8c8b5352216815d7d8..1e52548ac05e0f67ccfebc932bd935452227710f 100644 (file)
--- a/MdePkg/Include/Protocol/DeviceIo.h
+++ b/MdePkg/Include/Protocol/DeviceIo.h
@@ -27,6 +27,16 @@
 \r
 typedef struct _EFI_DEVICE_IO_PROTOCOL EFI_DEVICE_IO_PROTOCOL;\r
 \r
+//\r
+// Protocol GUID name defined in EFI1.1.\r
+// \r
+#define DEVICE_IO_PROTOCOL  EFI_DEVICE_IO_PROTOCOL_GUID\r
+\r
+//\r
+// Protocol defined in EFI1.1.\r
+// \r
+typedef EFI_DEVICE_IO_PROTOCOL  EFI_DEVICE_IO_INTERFACE;\r
+\r
 typedef enum {\r
   IO_UINT8,\r
   IO_UINT16,\r