1 files changed, 6 insertions, 0 deletions
diff --git a/MdePkg/Include/Protocol/PxeBaseCodeCallBack.h b/MdePkg/Include/Protocol/PxeBaseCodeCallBack.h
index 8fe8f0be3f..f8267d8610 100644
--- a/MdePkg/Include/Protocol/PxeBaseCodeCallBack.h
+++ b/MdePkg/Include/Protocol/PxeBaseCodeCallBack.h
@@ -46,6 +46,9 @@ typedef struct _EFI_PXE_BASE_CODE_CALLBACK_PROTOCOL  EFI_PXE_BASE_CODE_CALLBACK_
 /// 
 typedef EFI_PXE_BASE_CODE_CALLBACK_PROTOCOL   EFI_PXE_BASE_CODE_CALLBACK;
 
+///
+/// Event type list for PXE Base Code Protocol function
+///
 typedef enum {
   EFI_PXE_BASE_CODE_FUNCTION_FIRST,
   EFI_PXE_BASE_CODE_FUNCTION_DHCP,
@@ -58,6 +61,9 @@ typedef enum {
   EFI_PXE_BASE_CODE_PXE_FUNCTION_LAST
 } EFI_PXE_BASE_CODE_FUNCTION;
 
+///
+/// Callback status type
+///
 typedef enum {
   EFI_PXE_BASE_CODE_CALLBACK_STATUS_FIRST,
   EFI_PXE_BASE_CODE_CALLBACK_STATUS_CONTINUE,