1 files changed, 2 insertions, 1 deletions
diff --git a/IntelFrameworkPkg/Library/DxeIoLibCpuIo/IoLib.c b/IntelFrameworkPkg/Library/DxeIoLibCpuIo/IoLib.c
index 808933f3fa..57a2335571 100644
--- a/IntelFrameworkPkg/Library/DxeIoLibCpuIo/IoLib.c
+++ b/IntelFrameworkPkg/Library/DxeIoLibCpuIo/IoLib.c
@@ -168,7 +168,8 @@ MmioReadWorker (
   @param  Address       The MMIO register to read.
                         The caller is responsible for aligning the Address if required.
   @param  Width         The width of the I/O operation.
-
+  @param  Data          The value to write to the I/O port.
+  
   @return Data read from registers in the EFI system memory space.
 
 **/