1. Retired HotPlugDevice protocol.

2. Check devicepath node to get hot plug information. Currently, USB and PCCard device are checked.

git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@7562 6f19259b-4bc3-4df7-8a09-765794883524

MdeModulePkg/Bus/Usb/UsbKbDxe/EfiKey.c

@@ -293,9 +293,8 @@ USBKeyboardDriverBindingStart (
   // Install Simple Text Input Protocol and Simple Text Input Ex Protocol
   // for the USB keyboard device.
   // USB keyboard is a hot plug device, and expected to work immediately
-  // when plugging into system, so a HotPlugDeviceGuid is installed onto
-  // the usb keyboard device handle, to distinguish it from other conventional
-  // console devices.
+  // when plugging into system, other conventional console devices could
+  // distinguish it by its device path.
   //
   Status = gBS->InstallMultipleProtocolInterfaces (
                   &Controller,
@@ -303,8 +302,6 @@ USBKeyboardDriverBindingStart (
                   &UsbKeyboardDevice->SimpleInput,
                   &gEfiSimpleTextInputExProtocolGuid,
                   &UsbKeyboardDevice->SimpleInputEx,
-                  &gEfiHotPlugDeviceGuid,
-                  NULL,
                   NULL
                   );
   if (EFI_ERROR (Status)) {
@@ -325,8 +322,6 @@ USBKeyboardDriverBindingStart (
            &UsbKeyboardDevice->SimpleInput,
            &gEfiSimpleTextInputExProtocolGuid,
            &UsbKeyboardDevice->SimpleInputEx,
-           &gEfiHotPlugDeviceGuid,
-           NULL,
            NULL
            );
     goto ErrorExit;
@@ -356,8 +351,6 @@ USBKeyboardDriverBindingStart (
            &UsbKeyboardDevice->SimpleInput,
            &gEfiSimpleTextInputExProtocolGuid,
            &UsbKeyboardDevice->SimpleInputEx,
-           &gEfiHotPlugDeviceGuid,
-           NULL,
            NULL
            );
     goto ErrorExit;
@@ -495,8 +488,6 @@ USBKeyboardDriverBindingStop (
                   &UsbKeyboardDevice->SimpleInput,
                   &gEfiSimpleTextInputExProtocolGuid,
                   &UsbKeyboardDevice->SimpleInputEx,
-                  &gEfiHotPlugDeviceGuid,
-                  NULL,
                   NULL
                   );
   //

MdeModulePkg/Bus/Usb/UsbKbDxe/EfiKey.h

@@ -23,7 +23,6 @@ WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
 #include <Protocol/UsbIo.h>
 #include <Protocol/DevicePath.h>
 #include <Protocol/SimpleTextInExNotify.h>
-#include <Protocol/HotPlugDevice.h>
 
 #include <Guid/HiiKeyBoardLayout.h>
 

MdeModulePkg/Bus/Usb/UsbKbDxe/UsbKbDxe.inf

@@ -79,7 +79,6 @@
   gEfiDevicePathProtocolGuid                    ## TO_START
   gEfiSimpleTextInProtocolGuid                  ## BY_START
   gEfiSimpleTextInputExProtocolGuid             ## BY_START
-  gEfiHotPlugDeviceGuid                         ## BY_START
   ##
   # If HII Database Protocol exists, then keyboard layout from HII database is used.
   # Otherwise, USB keyboard module tries to use its carried default layout.