X-Git-Url: https://git.proxmox.com/?a=blobdiff_plain;f=IntelFrameworkPkg%2FLibrary%2FDxeIoLibCpuIo%2FIoLib.c;h=57a2335571035fcdf4c68a3363f8f19ff908f38f;hb=7459094d5f6904a0c8445d97519f4a99b654ef43;hp=6aeee32cc47f80023b12780440284b425bf8ed87;hpb=856500d8fdb158a7158654c62f952b90cf454b9d;p=mirror_edk2.git

diff --git a/IntelFrameworkPkg/Library/DxeIoLibCpuIo/IoLib.c b/IntelFrameworkPkg/Library/DxeIoLibCpuIo/IoLib.c
index 6aeee32cc4..57a2335571 100644
--- a/IntelFrameworkPkg/Library/DxeIoLibCpuIo/IoLib.c
+++ b/IntelFrameworkPkg/Library/DxeIoLibCpuIo/IoLib.c
@@ -1,6 +1,8 @@
 /** @file
   I/O Library.
-
+  The implementation of I/O operation for this library instance 
+  are based on EFI_CPU_IO_PROTOCOL.
+  
   Copyright (c) 2006, Intel Corporation<BR>
   All rights reserved. This program and the accompanying materials
   are licensed and made available under the terms and conditions of the BSD License
@@ -166,7 +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.
 
 **/