X-Git-Url: https://git.proxmox.com/?p=mirror_edk2.git;a=blobdiff_plain;f=MdePkg%2FInclude%2FProtocol%2FSerialIo.h;fp=MdePkg%2FInclude%2FProtocol%2FSerialIo.h;h=e2e0c61eeb0a9b4b7efc4dfbe4877d98f826756b;hp=51eaa53809590262385a5ae227d16be968d0fd5a;hb=7e9cef643d507e5ce40aa4b71fdb25d7fa051130;hpb=bcf181a33b2ea46c36c3be701a5b2e232deaece7

diff --git a/MdePkg/Include/Protocol/SerialIo.h b/MdePkg/Include/Protocol/SerialIo.h
index 51eaa53809..e2e0c61eeb 100644
--- a/MdePkg/Include/Protocol/SerialIo.h
+++ b/MdePkg/Include/Protocol/SerialIo.h
@@ -263,6 +263,7 @@ typedef struct {
 } EFI_SERIAL_IO_MODE;
 
 #define EFI_SERIAL_IO_PROTOCOL_REVISION    0x00010000
+#define EFI_SERIAL_IO_PROTOCOL_REVISION1p1 0x00010001
 #define SERIAL_IO_INTERFACE_REVISION  EFI_SERIAL_IO_PROTOCOL_REVISION
 
 ///
@@ -287,6 +288,14 @@ struct _EFI_SERIAL_IO_PROTOCOL {
   /// Pointer to SERIAL_IO_MODE data.
   ///
   EFI_SERIAL_IO_MODE          *Mode;
+  ///
+  /// Pointer to a GUID identifying the device connected to the serial port.
+  /// This field is NULL when the protocol is installed by the serial port
+  /// driver and may be populated by a platform driver for a serial port
+  /// with a known device attached. The field will remain NULL if there is
+  /// no platform serial device identification information available.
+  ///
+  CONST EFI_GUID              *DeviceTypeGuid; // Revision 1.1
 };
 
 extern EFI_GUID gEfiSerialIoProtocolGuid;