[modbus]changed tabs to spaces.

components/net/freemodbus-v1.6.0/port/port.c

@@ -16,7 +16,7 @@
   * License along with this library; if not, write to the Free Software
   * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
   *
-  * File: $Id: portevent.c,v 1.60 2015/02/01 9:18:05 Armink $
+  * File: $Id: port.c,v 1.60 2015/02/01 9:18:05 Armink $
   */
 
 /* ----------------------- System includes --------------------------------*/

components/net/freemodbus-v1.6.0/port/user_mb_app.c

@@ -260,8 +260,8 @@ eMBErrorCode eMBRegDiscreteCB( UCHAR * pucRegBuffer, USHORT usAddress, USHORT us
     if ((usAddress >= DISCRETE_INPUT_START)
             && (usAddress + usNDiscrete    <= DISCRETE_INPUT_START + DISCRETE_INPUT_NDISCRETES))
     {
-        iRegIndex = (USHORT) (usAddress - usDiscreteInputStart) / 8; //每个寄存器存8个
-        iRegBitIndex = (USHORT) (usAddress - usDiscreteInputStart) % 8; //相对于寄存器内部的位地址
+        iRegIndex = (USHORT) (usAddress - usDiscreteInputStart) / 8;
+        iRegBitIndex = (USHORT) (usAddress - usDiscreteInputStart) % 8;
 
         while (iNReg > 0)
         {