diff --git a/reactos/ntoskrnl/inbv/inbvport.c b/reactos/ntoskrnl/inbv/inbvport.c
index d0509becce3..e95e8256783 100644
--- a/reactos/ntoskrnl/inbv/inbvport.c
+++ b/reactos/ntoskrnl/inbv/inbvport.c
@@ -35,11 +35,20 @@ InbvPortPollOnly(IN ULONG PortId)
 
 BOOLEAN
 NTAPI
-InbvPortGetByte(IN ULONG PortId,
-                OUT PUCHAR Char)
+InbvPortGetByte(IN  ULONG  PortId,
+                OUT PUCHAR Byte)
 {
     /* Read a byte from the port */
-    return CpGetByte(&Port[PortId], Char, TRUE, FALSE) == CP_GET_SUCCESS;
+    return CpGetByte(&Port[PortId], Byte, TRUE, FALSE) == CP_GET_SUCCESS;
+}
+
+VOID
+NTAPI
+InbvPortPutByte(IN ULONG PortId,
+                IN UCHAR Byte)
+{
+    /* Send the byte */
+    CpPutByte(&Port[PortId], Byte);
 }
 
 VOID
@@ -51,15 +60,6 @@ InbvPortEnableFifo(IN ULONG   PortId,
     CpEnableFifo(Port[PortId].Address, Enable);
 }
 
-VOID
-NTAPI
-InbvPortPutByte(IN ULONG   PortId,
-                IN BOOLEAN Output)
-{
-    /* Send the byte */
-    CpPutByte(&Port[PortId], Output);
-}
-
 VOID
 NTAPI
 InbvPortTerminate(IN ULONG PortId)
diff --git a/reactos/ntoskrnl/include/internal/inbv.h b/reactos/ntoskrnl/include/internal/inbv.h
index 140761045e1..84d44ba03aa 100644
--- a/reactos/ntoskrnl/include/internal/inbv.h
+++ b/reactos/ntoskrnl/include/internal/inbv.h
@@ -84,11 +84,18 @@ InbvPortEnableFifo(
     IN BOOLEAN Enable
 );
 
+BOOLEAN
+NTAPI
+InbvPortGetByte(
+    IN ULONG PortId,
+    OUT PUCHAR Byte
+);
+
 VOID
 NTAPI
 InbvPortPutByte(
     IN ULONG PortId,
-    IN BOOLEAN Output
+    IN UCHAR Byte
 );
 
 VOID
@@ -113,11 +120,4 @@ InbvPortPollOnly(
     IN ULONG PortId
 );
 
-BOOLEAN
-NTAPI
-InbvPortGetByte(
-    IN ULONG PortId,
-    OUT PUCHAR Char
-);
-
 extern BOOLEAN InbvBootDriverInstalled;