1 files changed, 2 insertions, 2 deletions
diff --git a/MdePkg/Include/Library/PciCf8Lib.h b/MdePkg/Include/Library/PciCf8Lib.h
index 41491f01a2..7ae59e67ea 100644
--- a/MdePkg/Include/Library/PciCf8Lib.h
+++ b/MdePkg/Include/Library/PciCf8Lib.h
@@ -1000,7 +1000,7 @@ PciCf8BitFieldAndThenOr32 (
   @param  Size          Size in bytes of the transfer.
   @param  Buffer        Pointer to a buffer receiving the data read.
 
-  @return Size
+  @return Size read from StartAddress.
 
 **/
 UINTN
@@ -1033,7 +1033,7 @@ PciCf8ReadBuffer (
   @param  Size          Size in bytes of the transfer.
   @param  Buffer        Pointer to a buffer containing the data to write.
 
-  @return Size
+  @return Size written to StartAddress.
 
 **/
 UINTN