diff --git a/MdeModulePkg/Bus/Pci/EhciDxe/EhciDxe.inf b/MdeModulePkg/Bus/Pci/EhciDxe/EhciDxe.inf
index 69f693f95c..deb540524f 100644
--- a/MdeModulePkg/Bus/Pci/EhciDxe/EhciDxe.inf
+++ b/MdeModulePkg/Bus/Pci/EhciDxe/EhciDxe.inf
@@ -59,7 +59,7 @@
   MdeModulePkg/MdeModulePkg.dec
 
 [FeaturePcd]
-  gEfiMdeModulePkgTokenSpaceGuid.PcdTurnOffUsbLegacySupport
+  gEfiMdeModulePkgTokenSpaceGuid.PcdTurnOffUsbLegacySupport  ## SOMETIME_CONSUMES (enable/disable usb legacy support.)
 
 [LibraryClasses]
   MemoryAllocationLib
diff --git a/MdeModulePkg/Bus/Pci/UhciDxe/UhciDxe.inf b/MdeModulePkg/Bus/Pci/UhciDxe/UhciDxe.inf
index b35bd31d9e..cf91655244 100644
--- a/MdeModulePkg/Bus/Pci/UhciDxe/UhciDxe.inf
+++ b/MdeModulePkg/Bus/Pci/UhciDxe/UhciDxe.inf
@@ -60,7 +60,7 @@
   MdeModulePkg/MdeModulePkg.dec
 
 [FeaturePcd]
-  gEfiMdeModulePkgTokenSpaceGuid.PcdTurnOffUsbLegacySupport
+  gEfiMdeModulePkgTokenSpaceGuid.PcdTurnOffUsbLegacySupport  ## SOMETIME_CONSUMES (enable/disable usb legacy support.)
 
 [LibraryClasses]
   MemoryAllocationLib
diff --git a/MdeModulePkg/Bus/Usb/UsbBusDxe/UsbBusDxe.inf b/MdeModulePkg/Bus/Usb/UsbBusDxe/UsbBusDxe.inf
index deebed43ab..e8c0a5dc8c 100644
--- a/MdeModulePkg/Bus/Usb/UsbBusDxe/UsbBusDxe.inf
+++ b/MdeModulePkg/Bus/Usb/UsbBusDxe/UsbBusDxe.inf
@@ -64,10 +64,10 @@
 
 
 [Protocols]
-  gEfiUsbIoProtocolGuid                         ## ALWAYS_PRODUCED
-  gEfiDevicePathProtocolGuid                    ## ALWAYS_CONSUMED
-  gEfiUsb2HcProtocolGuid                        ## SOMETIMES_CONSUMED
-  gEfiUsbHcProtocolGuid                         ## SOMETIMES_CONSUMED
+  gEfiUsbIoProtocolGuid                         ## BY_START
+  gEfiDevicePathProtocolGuid                    ## BY_START
+  gEfiUsb2HcProtocolGuid                        ## TO_START
+  gEfiUsbHcProtocolGuid                         ## TO_START
 
 # [Event]
 #   ##
diff --git a/MdeModulePkg/Universal/Variable/EmuRuntimeDxe/EmuVariableRuntimeDxe.inf b/MdeModulePkg/Universal/Variable/EmuRuntimeDxe/EmuVariableRuntimeDxe.inf
index 36fa152d9d..12cbbc929a 100644
--- a/MdeModulePkg/Universal/Variable/EmuRuntimeDxe/EmuVariableRuntimeDxe.inf
+++ b/MdeModulePkg/Universal/Variable/EmuRuntimeDxe/EmuVariableRuntimeDxe.inf
@@ -55,7 +55,7 @@
   gEfiVariableWriteArchProtocolGuid             ## PRODUCES
 
 [Guids]
-  gEfiEventVirtualAddressChangeGuid
+  gEfiEventVirtualAddressChangeGuid             ## PRODUCES ## Event
 
 [Pcd.common]
   gEfiMdeModulePkgTokenSpaceGuid.PcdMaxVariableSize
diff --git a/MdeModulePkg/Universal/Variable/RuntimeDxe/VariableRuntimeDxe.inf b/MdeModulePkg/Universal/Variable/RuntimeDxe/VariableRuntimeDxe.inf
index 5a47fa4a24..c7ba49b11f 100644
--- a/MdeModulePkg/Universal/Variable/RuntimeDxe/VariableRuntimeDxe.inf
+++ b/MdeModulePkg/Universal/Variable/RuntimeDxe/VariableRuntimeDxe.inf
@@ -72,7 +72,7 @@
   gEfiMdeModulePkgTokenSpaceGuid.PcdVariableStoreSize
   
 [FeaturePcd.common]
-  gEfiMdeModulePkgTokenSpaceGuid.PcdVariableCollectStatistics
+  gEfiMdeModulePkgTokenSpaceGuid.PcdVariableCollectStatistics  ## SOMETIME_CONSUMES (statistic the information of variable.)
 
 [Depex]
   gEfiFirmwareVolumeBlockProtocolGuid AND gEfiFaultTolerantWriteLiteProtocolGuid