Improvements in COM port support

sdk/xtdk/hlfuncs.h

@@ -26,13 +26,13 @@ HlComPortGetByte(IN PCPPORT Port,
                  IN BOOLEAN Poll);
 
 XTCDECL
-UCHAR
-HlComPortReadLsr(IN PCPPORT Port,
+XTSTATUS
+HlComPortPutByte(IN PCPPORT Port,
                  IN UCHAR Byte);
 
 XTCDECL
-XTSTATUS 
-HlComPortPutByte(IN PCPPORT Port,
+UCHAR
+HlComPortReadLsr(IN PCPPORT Port,
                  IN UCHAR Byte);
 
 XTCDECL

sdk/xtdk/hltypes.h

@@ -88,7 +88,7 @@
 #define COMPORT_REG_MCR             0x04 /* Modem Control Register */
 #define COMPORT_REG_LSR             0x05 /* Line Status Register */
 #define COMPORT_REG_MSR             0x06 /* Modem Status Register */
-#define COMPROT_REG_SR              0x07 /* Scratch Register */
+#define COMPORT_REG_SR              0x07 /* Scratch Register */
 
 /* Serial (COM) port initial state */
 typedef struct _CPPORT