1 files changed, 31 insertions, 13 deletions
diff --git a/MdePkg/Library/BaseIoLibIntrinsic/IoLibIcc.c b/MdePkg/Library/BaseIoLibIntrinsic/IoLibIcc.c
index d12ce3de90..c83fe8838d 100644
--- a/MdePkg/Library/BaseIoLibIntrinsic/IoLibIcc.c
+++ b/MdePkg/Library/BaseIoLibIntrinsic/IoLibIcc.c
@@ -13,9 +13,6 @@
 
 **/
 
-//
-// Include common header file for this module.
-//
 #include "BaseIoLibIntrinsicInternal.h"
 
 /**
@@ -29,7 +26,7 @@
 
   @param  Address The MMIO register to read.
 
-  @return The value read.
+  @return The value read from Address.
 
 **/
 UINT8
@@ -52,6 +49,10 @@ MmioRead8 (
 
   @param  Address The MMIO register to write.
   @param  Value   The value to write to the MMIO register.
+  
+  @return The value written to the Mmio. It equals to the input
+          Value instead of the actual value read back from the
+          Mmio.
 
 **/
 UINT8
@@ -75,7 +76,7 @@ MmioWrite8 (
 
   @param  Address The MMIO register to read.
 
-  @return The value read.
+  @return The value read from Address.
 
 **/
 UINT16
@@ -99,6 +100,10 @@ MmioRead16 (
 
   @param  Address The MMIO register to write.
   @param  Value   The value to write to the MMIO register.
+  
+  @return The value written to the Mmio. It equals to the input
+          Value instead of the actual value read back from the
+          Mmio.
 
 **/
 UINT16
@@ -123,7 +128,7 @@ MmioWrite16 (
 
   @param  Address The MMIO register to read.
 
-  @return The value read.
+  @return The value read from Address.
 
 **/
 UINT32
@@ -147,6 +152,10 @@ MmioRead32 (
 
   @param  Address The MMIO register to write.
   @param  Value   The value to write to the MMIO register.
+  
+  @return The value written to the Mmio. It equals to the input
+          Value instead of the actual value read back from the
+          Mmio.
 
 **/
 UINT32
@@ -171,7 +180,7 @@ MmioWrite32 (
 
   @param  Address The MMIO register to read.
 
-  @return The value read.
+  @return The value read from Address.
 
 **/
 UINT64
@@ -196,6 +205,9 @@ MmioRead64 (
   @param  Address The MMIO register to write.
   @param  Value   The value to write to the MMIO register.
 
+  @return The value written to the Mmio. It equals to the input
+          Value instead of the actual value read back from the
+          Mmio.
 **/
 UINT64
 EFIAPI
@@ -221,7 +233,7 @@ MmioWrite64 (
 
   @param  Port  The I/O port to read.
 
-  @return The value read.
+  @return The value read from Port.
 
 **/
 UINT8
@@ -253,7 +265,9 @@ IoRead8 (
   @param  Port  The I/O port to write.
   @param  Value The value to write to the I/O port.
 
-  @return The value written the I/O port.
+  @return The value written to the I/O port. It equals to the input
+          Value instead of the actual value read back from the
+          I/O port.
 
 **/
 UINT8
@@ -282,7 +296,7 @@ IoWrite8 (
 
   @param  Port  The I/O port to read.
 
-  @return The value read.
+  @return The value read from Port.
 
 **/
 UINT16
@@ -316,7 +330,9 @@ IoRead16 (
   @param  Port  The I/O port to write.
   @param  Value The value to write to the I/O port.
 
-  @return The value written the I/O port.
+  @return The value written to the I/O port. It equals to the input
+          Value instead of the actual value read back from the
+          I/O port.
 
 **/
 UINT16
@@ -351,7 +367,7 @@ IoWrite16 (
 
   @param  Port  The I/O port to read.
 
-  @return The value read.
+  @return The value read from Port.
 
 **/
 UINT32
@@ -385,7 +401,9 @@ IoRead32 (
   @param  Port  The I/O port to write.
   @param  Value The value to write to the I/O port.
 
-  @return The value written the I/O port.
+  @return The value written to the I/O port. It equals to the input
+          Value instead of the actual value read back from the
+          I/O port.
 
 **/
 UINT32