Fix up end of file and trailing whitespace.

This can be enforced by pre-commit, but correct it separately to make it easier to review.

11 files changed, 416 insertions, 417 deletions

diff --git a/drivers/wiznet5k/ethernet/socket.c b/drivers/wiznet5k/ethernet/socket.c
index bea98601d..7a114aa1b 100644
--- a/drivers/wiznet5k/ethernet/socket.c
+++ b/drivers/wiznet5k/ethernet/socket.c
@@ -2,7 +2,7 @@
 //
 //! \file socket.c
 //! \brief SOCKET APIs Implements file.
-//! \details SOCKET APIs like as Berkeley Socket APIs. 
+//! \details SOCKET APIs like as Berkeley Socket APIs.
 //! \version 1.0.3
 //! \date 2013/10/21
 //! \par  Revision history
@@ -10,7 +10,7 @@
 //!       <2014/05/01> V1.0.3. Refer to M20140501
 //!         1. Implicit type casting -> Explicit type casting.
 //!         2. replace 0x01 with PACK_REMAINED in recvfrom()
-//!         3. Validation a destination ip in connect() & sendto(): 
+//!         3. Validation a destination ip in connect() & sendto():
 //!            It occurs a fatal error on converting unint32 address if uint8* addr parameter is not aligned by 4byte address.
 //!            Copy 4 byte addr value into temporary uint32 variable and then compares it.
 //!       <2013/12/20> V1.0.2 Refer to M20131220
@@ -23,30 +23,30 @@
 //!
 //! Copyright (c)  2013, WIZnet Co., LTD.
 //! All rights reserved.
-//! 
-//! Redistribution and use in source and binary forms, with or without 
-//! modification, are permitted provided that the following conditions 
-//! are met: 
-//! 
-//!     * Redistributions of source code must retain the above copyright 
-//! notice, this list of conditions and the following disclaimer. 
+//!
+//! Redistribution and use in source and binary forms, with or without
+//! modification, are permitted provided that the following conditions
+//! are met:
+//!
+//!     * Redistributions of source code must retain the above copyright
+//! notice, this list of conditions and the following disclaimer.
 //!     * Redistributions in binary form must reproduce the above copyright
 //! notice, this list of conditions and the following disclaimer in the
-//! documentation and/or other materials provided with the distribution. 
-//!     * Neither the name of the <ORGANIZATION> nor the names of its 
-//! contributors may be used to endorse or promote products derived 
-//! from this software without specific prior written permission. 
-//! 
+//! documentation and/or other materials provided with the distribution.
+//!     * Neither the name of the <ORGANIZATION> nor the names of its
+//! contributors may be used to endorse or promote products derived
+//! from this software without specific prior written permission.
+//!
 //! THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
-//! AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 
+//! AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
 //! IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
-//! ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE 
-//! LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 
-//! CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 
+//! ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
+//! LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+//! CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
 //! SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
-//! INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 
-//! CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 
-//! ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF 
+//! INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+//! CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+//! ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
 //! THE POSSIBILITY OF SUCH DAMAGE.
 //
 //*****************************************************************************
@@ -123,7 +123,7 @@ int8_t WIZCHIP_EXPORT(socket)(uint8_t sn, uint8_t protocol, uint16_t port, uint8
 #if _WIZCHIP_ == 5200
    if(flag & 0x10) return SOCKERR_SOCKFLAG;
 #endif
-	   
+
 	if(flag != 0)
 	{
    	switch(protocol)
@@ -154,7 +154,7 @@ int8_t WIZCHIP_EXPORT(socket)(uint8_t sn, uint8_t protocol, uint16_t port, uint8
 	   port = sock_any_port++;
 	   if(sock_any_port == 0xFFF0) sock_any_port = SOCK_ANY_PORT_NUM;
 	}
-   setSn_PORT(sn,port);	
+   setSn_PORT(sn,port);
    setSn_CR(sn,Sn_CR_OPEN);
    while(getSn_CR(sn));
    sock_io_mode |= ((flag & SF_IO_NONBLOCK) << sn);
@@ -163,12 +163,12 @@ int8_t WIZCHIP_EXPORT(socket)(uint8_t sn, uint8_t protocol, uint16_t port, uint8
    sock_pack_info[sn] = 0;
    while(getSn_SR(sn) == SOCK_CLOSED);
    return (int8_t)sn;
-}	   
+}
 
 int8_t WIZCHIP_EXPORT(close)(uint8_t sn)
 {
 	CHECK_SOCKNUM();
-	
+
 	setSn_CR(sn,Sn_CR_CLOSE);
    /* wait to process the command... */
 	while( getSn_CR(sn) );
@@ -216,18 +216,18 @@ int8_t WIZCHIP_EXPORT(connect)(uint8_t sn, uint8_t * addr, uint16_t port)
       if (taddr == 0xFFFFFFFF || taddr == 0) return SOCKERR_IPINVALID;
    }
    //
-	
+
 	if(port == 0) return SOCKERR_PORTZERO;
 	setSn_DIPR(sn,addr);
 	setSn_DPORT(sn,port);
-   #if _WIZCHIP_ == 5200   // for W5200 ARP errata 
+   #if _WIZCHIP_ == 5200   // for W5200 ARP errata
     setSUBR(wizchip_getsubn());
    #endif
 	setSn_CR(sn,Sn_CR_CONNECT);
    while(getSn_CR(sn));
    if(sock_io_mode & (1<<sn)) return SOCK_BUSY;
    while(getSn_SR(sn) != SOCK_ESTABLISHED)
-   {   
+   {
         if (getSn_SR(sn) == SOCK_CLOSED) {
             #if _WIZCHIP_ == 5200   // for W5200 ARP errata
             setSUBR((uint8_t*)"\x00\x00\x00\x00");
@@ -237,17 +237,17 @@ int8_t WIZCHIP_EXPORT(connect)(uint8_t sn, uint8_t * addr, uint16_t port)
 		if (getSn_IR(sn) & Sn_IR_TIMEOUT)
 		{
 			setSn_IR(sn, Sn_IR_TIMEOUT);
-         #if _WIZCHIP_ == 5200   // for W5200 ARP errata 
+         #if _WIZCHIP_ == 5200   // for W5200 ARP errata
             setSUBR((uint8_t*)"\x00\x00\x00\x00");
          #endif
          return SOCKERR_TIMEOUT;
 		}
         MICROPY_THREAD_YIELD();
 	}
-   #if _WIZCHIP_ == 5200   // for W5200 ARP errata 
+   #if _WIZCHIP_ == 5200   // for W5200 ARP errata
       setSUBR((uint8_t*)"\x00\x00\x00\x00");
    #endif
-   
+
    return SOCK_OK;
 }
 
@@ -275,7 +275,7 @@ int32_t WIZCHIP_EXPORT(send)(uint8_t sn, uint8_t * buf, uint16_t len)
 {
    uint8_t tmp=0;
    uint16_t freesize=0;
-   
+
    CHECK_SOCKNUM();
    CHECK_SOCKMODE(Sn_MR_TCP);
    CHECK_SOCKDATA();
@@ -295,7 +295,7 @@ int32_t WIZCHIP_EXPORT(send)(uint8_t sn, uint8_t * buf, uint16_t len)
                return SOCKERR_BUSY;
             }
          #endif
-         sock_is_sending &= ~(1<<sn);         
+         sock_is_sending &= ~(1<<sn);
       }
       else if(tmp & Sn_IR_TIMEOUT)
       {
@@ -338,7 +338,7 @@ int32_t WIZCHIP_EXPORT(recv)(uint8_t sn, uint8_t * buf, uint16_t len)
    CHECK_SOCKNUM();
    CHECK_SOCKMODE(Sn_MR_TCP);
    CHECK_SOCKDATA();
-   
+
    recvsize = getSn_RxMAX(sn);
    if(recvsize < len) len = recvsize;
    while(1)
@@ -398,9 +398,9 @@ int32_t WIZCHIP_EXPORT(sendto)(uint8_t sn, uint8_t * buf, uint16_t len, uint8_t
    if(port == 0)               return SOCKERR_PORTZERO;
    tmp = getSn_SR(sn);
    if(tmp != SOCK_MACRAW && tmp != SOCK_UDP) return SOCKERR_SOCKSTATUS;
-      
+
    setSn_DIPR(sn,addr);
-   setSn_DPORT(sn,port);      
+   setSn_DPORT(sn,port);
    freesize = getSn_TxMAX(sn);
    if (len > freesize) len = freesize; // check size not to exceed MAX size.
    while(1)
@@ -413,7 +413,7 @@ int32_t WIZCHIP_EXPORT(sendto)(uint8_t sn, uint8_t * buf, uint16_t len, uint8_t
    };
 	wiz_send_data(sn, buf, len);
 
-   #if _WIZCHIP_ == 5200   // for W5200 ARP errata 
+   #if _WIZCHIP_ == 5200   // for W5200 ARP errata
       setSUBR(wizchip_getsubn());
    #endif
 
@@ -433,7 +433,7 @@ int32_t WIZCHIP_EXPORT(sendto)(uint8_t sn, uint8_t * buf, uint16_t len, uint8_t
       else if(tmp & Sn_IR_TIMEOUT)
       {
          setSn_IR(sn, Sn_IR_TIMEOUT);
-   #if _WIZCHIP_ == 5200   // for W5200 ARP errata 
+   #if _WIZCHIP_ == 5200   // for W5200 ARP errata
       setSUBR((uint8_t*)"\x00\x00\x00\x00");
    #endif
          return SOCKERR_TIMEOUT;
@@ -441,7 +441,7 @@ int32_t WIZCHIP_EXPORT(sendto)(uint8_t sn, uint8_t * buf, uint16_t len, uint8_t
       ////////////
       MICROPY_THREAD_YIELD();
    }
-   #if _WIZCHIP_ == 5200   // for W5200 ARP errata 
+   #if _WIZCHIP_ == 5200   // for W5200 ARP errata
       setSUBR((uint8_t*)"\x00\x00\x00\x00");
    #endif
 	return len;
@@ -462,7 +462,7 @@ int32_t WIZCHIP_EXPORT(recvfrom)(uint8_t sn, uint8_t * buf, uint16_t len, uint8_
       case Sn_MR_UDP:
       case Sn_MR_MACRAW:
          break;
-   #if ( _WIZCHIP_ < 5200 )         
+   #if ( _WIZCHIP_ < 5200 )
       case Sn_MR_IPRAW:
       case Sn_MR_PPPoE:
          break;
@@ -519,7 +519,7 @@ int32_t WIZCHIP_EXPORT(recvfrom)(uint8_t sn, uint8_t * buf, uint16_t len, uint8_
     			sock_remained_size[sn] = head[0];
    			sock_remained_size[sn] = (sock_remained_size[sn] <<8) + head[1];
    			sock_remained_size[sn] -= 2; // len includes 2 len bytes
-   			if(sock_remained_size[sn] > 1514) 
+   			if(sock_remained_size[sn] > 1514)
    			{
    			   WIZCHIP_EXPORT(close)(sn);
    			   return SOCKFATAL_PACKLEN;
@@ -582,7 +582,7 @@ int8_t  WIZCHIP_EXPORT(ctlsocket)(uint8_t sn, ctlsock_type cstype, void* arg)
          else if(tmp == SOCK_IO_BLOCK) sock_io_mode &= ~(1<<sn);
          else return SOCKERR_ARG;
          break;
-      case CS_GET_IOMODE:   
+      case CS_GET_IOMODE:
          //M20140501 : implict type casting -> explict type casting
          //*((uint8_t*)arg) = (sock_io_mode >> sn) & 0x0001;
          *((uint8_t*)arg) = (uint8_t)((sock_io_mode >> sn) & 0x0001);
@@ -591,7 +591,7 @@ int8_t  WIZCHIP_EXPORT(ctlsocket)(uint8_t sn, ctlsock_type cstype, void* arg)
       case CS_GET_MAXTXBUF:
          *((uint16_t*)arg) = getSn_TxMAX(sn);
          break;
-      case CS_GET_MAXRXBUF:    
+      case CS_GET_MAXRXBUF:
          *((uint16_t*)arg) = getSn_RxMAX(sn);
          break;
       case CS_CLR_INTERRUPT:
@@ -601,11 +601,11 @@ int8_t  WIZCHIP_EXPORT(ctlsocket)(uint8_t sn, ctlsock_type cstype, void* arg)
       case CS_GET_INTERRUPT:
          *((uint8_t*)arg) = getSn_IR(sn);
          break;
-      case CS_SET_INTMASK:  
+      case CS_SET_INTMASK:
          if( (*(uint8_t*)arg) > SIK_ALL) return SOCKERR_ARG;
          setSn_IMR(sn,*(uint8_t*)arg);
          break;
-      case CS_GET_INTMASK:   
+      case CS_GET_INTMASK:
          *((uint8_t*)arg) = getSn_IMR(sn);
       default:
          return SOCKERR_ARG;
@@ -658,11 +658,11 @@ int8_t  WIZCHIP_EXPORT(setsockopt)(uint8_t sn, sockopt_type sotype, void* arg)
          CHECK_SOCKMODE(Sn_MR_TCP);
          setSn_KPALVTR(sn,*(uint8_t*)arg);
          break;
-   #endif      
-#endif   
+   #endif
+#endif
       default:
          return SOCKERR_ARG;
-   }   
+   }
    return SOCK_OK;
 }
 
@@ -680,20 +680,20 @@ int8_t  WIZCHIP_EXPORT(getsockopt)(uint8_t sn, sockopt_type sotype, void* arg)
       case SO_TOS:
          *(uint8_t*) arg = getSn_TOS(sn);
          break;
-      case SO_MSS:   
+      case SO_MSS:
          *(uint8_t*) arg = getSn_MSSR(sn);
       case SO_DESTIP:
          getSn_DIPR(sn, (uint8_t*)arg);
          break;
-      case SO_DESTPORT:  
+      case SO_DESTPORT:
          *(uint16_t*) arg = getSn_DPORT(sn);
          break;
-   #if _WIZCHIP_ > 5200   
+   #if _WIZCHIP_ > 5200
       case SO_KEEPALIVEAUTO:
          CHECK_SOCKMODE(Sn_MR_TCP);
          *(uint16_t*) arg = getSn_KPALVTR(sn);
          break;
-   #endif      
+   #endif
       case SO_SENDBUF:
          *(uint16_t*) arg = getSn_TX_FSR(sn);
       case SO_RECVBUF:
diff --git a/drivers/wiznet5k/ethernet/socket.h b/drivers/wiznet5k/ethernet/socket.h
index 2f03a34eb..4f602e429 100644
--- a/drivers/wiznet5k/ethernet/socket.h
+++ b/drivers/wiznet5k/ethernet/socket.h
@@ -2,43 +2,43 @@
 //
 //! \file socket.h
 //! \brief SOCKET APIs Header file.
-//! \details SOCKET APIs like as berkeley socket api. 
+//! \details SOCKET APIs like as berkeley socket api.
 //! \version 1.0.2
 //! \date 2013/10/21
 //! \par  Revision history
 //!       <2014/05/01> V1.0.2. Refer to M20140501
 //!         1. Modify the comment : SO_REMAINED -> PACK_REMAINED
-//!         2. Add the comment as zero byte udp data reception in getsockopt(). 
+//!         2. Add the comment as zero byte udp data reception in getsockopt().
 //!       <2013/10/21> 1st Release
 //! \author MidnightCow
 //! \copyright
 //!
 //! Copyright (c)  2013, WIZnet Co., LTD.
 //! All rights reserved.
-//! 
-//! Redistribution and use in source and binary forms, with or without 
-//! modification, are permitted provided that the following conditions 
-//! are met: 
-//! 
-//!     * Redistributions of source code must retain the above copyright 
-//! notice, this list of conditions and the following disclaimer. 
+//!
+//! Redistribution and use in source and binary forms, with or without
+//! modification, are permitted provided that the following conditions
+//! are met:
+//!
+//!     * Redistributions of source code must retain the above copyright
+//! notice, this list of conditions and the following disclaimer.
 //!     * Redistributions in binary form must reproduce the above copyright
 //! notice, this list of conditions and the following disclaimer in the
-//! documentation and/or other materials provided with the distribution. 
-//!     * Neither the name of the <ORGANIZATION> nor the names of its 
-//! contributors may be used to endorse or promote products derived 
-//! from this software without specific prior written permission. 
-//! 
+//! documentation and/or other materials provided with the distribution.
+//!     * Neither the name of the <ORGANIZATION> nor the names of its
+//! contributors may be used to endorse or promote products derived
+//! from this software without specific prior written permission.
+//!
 //! THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
-//! AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 
+//! AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
 //! IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
-//! ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE 
-//! LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 
-//! CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 
+//! ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
+//! LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+//! CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
 //! SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
-//! INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 
-//! CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 
-//! ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF 
+//! INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+//! CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+//! ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
 //! THE POSSIBILITY OF SUCH DAMAGE.
 //
 //*****************************************************************************
@@ -92,7 +92,7 @@
 #define SOCK_BUSY             0        ///< Socket is busy on processing the operation. Valid only Non-block IO Mode.
 #define SOCK_FATAL            -1000    ///< Result is fatal error about socket process.
 
-#define SOCK_ERROR            0        
+#define SOCK_ERROR            0
 #define SOCKERR_SOCKNUM       (SOCK_ERROR - 1)     ///< Invalid socket number
 #define SOCKERR_SOCKOPT       (SOCK_ERROR - 2)     ///< Invalid socket option
 #define SOCKERR_SOCKINIT      (SOCK_ERROR - 3)     ///< Socket is not initialized
@@ -113,7 +113,7 @@
  * SOCKET FLAG
  */
 #define SF_ETHER_OWN           (Sn_MR_MFEN)        ///< In \ref Sn_MR_MACRAW, Receive only the packet as broadcast, multicast and own packet
-#define SF_IGMP_VER2           (Sn_MR_MC)          ///< In \ref Sn_MR_UDP with \ref SF_MULTI_ENABLE, Select IGMP version 2.   
+#define SF_IGMP_VER2           (Sn_MR_MC)          ///< In \ref Sn_MR_UDP with \ref SF_MULTI_ENABLE, Select IGMP version 2.
 #define SF_TCP_NODELAY         (Sn_MR_ND)          ///< In \ref Sn_MR_TCP, Use to nodelayed ack.
 #define SF_MULTI_ENABLE        (Sn_MR_MULTI)       ///< In \ref Sn_MR_UDP, Enable multicast mode.
 
@@ -184,7 +184,7 @@ int8_t  WIZCHIP_EXPORT(listen)(uint8_t sn);
  * @ingroup WIZnet_socket_APIs
  * @brief Try to connect a server.
  * @details It requests connection to the server with destination IP address and port number passed as parameter.\n
- * @note It is valid only in TCP client mode. 
+ * @note It is valid only in TCP client mode.
  *       In block io mode, it does not return until connection is completed.
  *       In Non-block io mode, it return @ref SOCK_BUSY immediately.
  *
@@ -286,7 +286,7 @@ int32_t WIZCHIP_EXPORT(recv)(uint8_t sn, uint8_t * buf, uint16_t len);
  *                        @ref SOCKERR_PORTZERO    - Server port zero\n
  *                        @ref SOCKERR_SOCKCLOSED  - Socket unexpectedly closed \n
  *                        @ref SOCKERR_TIMEOUT     - Timeout occurred \n
- *                        @ref SOCK_BUSY           - Socket is busy. 
+ *                        @ref SOCK_BUSY           - Socket is busy.
  */
 int32_t WIZCHIP_EXPORT(sendto)(uint8_t sn, uint8_t * buf, uint16_t len, uint8_t * addr, uint16_t port);
 
@@ -294,7 +294,7 @@ int32_t WIZCHIP_EXPORT(sendto)(uint8_t sn, uint8_t * buf, uint16_t len, uint8_t
  * @ingroup WIZnet_socket_APIs
  * @brief Receive datagram of UDP or MACRAW
  * @details This function is an application I/F function which is used to receive the data in other then TCP mode. \n
- *          This function is used to receive UDP and MAC_RAW mode, and handle the header as well. 
+ *          This function is used to receive UDP and MAC_RAW mode, and handle the header as well.
  *          This function can divide to received the packet data.
  *          On the MACRAW SOCKET, the addr and port parameters are ignored.
  * @note    In block io mode, it doesn't return until data reception is completed - data is filled as <I>len</I> in socket buffer
@@ -302,7 +302,7 @@ int32_t WIZCHIP_EXPORT(sendto)(uint8_t sn, uint8_t * buf, uint16_t len, uint8_t
  *
  * @param sn   Socket number. It should be <b>0 ~ @ref \_WIZCHIP_SOCK_NUM_</b>.
  * @param buf  Pointer buffer to read incoming data.
- * @param len  The max data length of data in buf. 
+ * @param len  The max data length of data in buf.
  *             When the received packet size <= len, receives data as packet sized.
  *             When others, receives data as len.
  * @param addr Pointer variable of destination IP address. It should be allocated 4 bytes.
@@ -366,7 +366,7 @@ typedef enum
 /**
  * @ingroup DATA_TYPE
  * @brief The type of socket option in @ref setsockopt() or @ref getsockopt()
- */ 
+ */
 typedef enum
 {
    SO_FLAG,           ///< Valid only in getsockopt(), For set flag of socket refer to <I>flag</I> in @ref socket().
@@ -375,11 +375,11 @@ typedef enum
    SO_MSS,              ///< Set/Get MSS. @ref Sn_MSSR ( @ref setSn_MSSR(), @ref getSn_MSSR() )
    SO_DESTIP,           ///< Set/Get the destination IP address. @ref Sn_DIPR ( @ref setSn_DIPR(), @ref getSn_DIPR() )
    SO_DESTPORT,         ///< Set/Get the destination Port number. @ref Sn_DPORT ( @ref setSn_DPORT(), @ref getSn_DPORT() )
-#if _WIZCHIP_ != 5100   
+#if _WIZCHIP_ != 5100
    SO_KEEPALIVESEND,    ///< Valid only in setsockopt. Manually send keep-alive packet in TCP mode
-   #if _WIZCHIP_ > 5200   
+   #if _WIZCHIP_ > 5200
       SO_KEEPALIVEAUTO, ///< Set/Get keep-alive auto transmission timer in TCP mode
-   #endif      
+   #endif
 #endif
    SO_SENDBUF,          ///< Valid only in getsockopt. Get the free data size of Socekt TX buffer. @ref Sn_TX_FSR, @ref getSn_TX_FSR()
    SO_RECVBUF,          ///< Valid only in getsockopt. Get the received data size in socket RX buffer. @ref Sn_RX_RSR, @ref getSn_RX_RSR()
@@ -400,34 +400,34 @@ typedef enum
  *                  <tr> <td> @b cstype </td> <td> @b data type</td><td>@b value</td></tr>
  *                  <tr> <td> @ref CS_SET_IOMODE \n @ref CS_GET_IOMODE </td> <td> uint8_t </td><td>@ref SOCK_IO_BLOCK @ref SOCK_IO_NONBLOCK</td></tr>
  *                  <tr> <td> @ref CS_GET_MAXTXBUF \n @ref CS_GET_MAXRXBUF </td> <td> uint16_t </td><td> 0 ~ 16K </td></tr>
- *                  <tr> <td> @ref CS_CLR_INTERRUPT \n @ref CS_GET_INTERRUPT \n @ref CS_SET_INTMASK \n @ref CS_GET_INTMASK </td> <td> @ref sockint_kind </td><td> @ref SIK_CONNECTED, etc.  </td></tr> 
+ *                  <tr> <td> @ref CS_CLR_INTERRUPT \n @ref CS_GET_INTERRUPT \n @ref CS_SET_INTMASK \n @ref CS_GET_INTMASK </td> <td> @ref sockint_kind </td><td> @ref SIK_CONNECTED, etc.  </td></tr>
  *             </table>
  *  @return @b Success @ref SOCK_OK \n
  *          @b fail    @ref SOCKERR_ARG         - Invalid argument\n
  */
 int8_t  WIZCHIP_EXPORT(ctlsocket)(uint8_t sn, ctlsock_type cstype, void* arg);
 
-/** 
+/**
  * @ingroup WIZnet_socket_APIs
  *  @brief set socket options
  *  @details Set socket option like as TTL, MSS, TOS, and so on. Refer to @ref sockopt_type.
- *               
+ *
  *  @param sn socket number
  *  @param sotype socket option type. refer to @ref sockopt_type
  *  @param arg Data type and value is determined according to <I>sotype</I>. \n
  *             <table>
- *                  <tr> <td> @b sotype </td> <td> @b data type</td><td>@b value</td></tr> 
+ *                  <tr> <td> @b sotype </td> <td> @b data type</td><td>@b value</td></tr>
  *                  <tr> <td> @ref SO_TTL </td> <td> uint8_t </td><td> 0 ~ 255 </td> </tr>
  *                  <tr> <td> @ref SO_TOS </td> <td> uint8_t </td><td> 0 ~ 255 </td> </tr>
  *                  <tr> <td> @ref SO_MSS </td> <td> uint16_t </td><td> 0 ~ 65535 </td> </tr>
- *                  <tr> <td> @ref SO_DESTIP </td> <td> uint8_t[4] </td><td>  </td></tr> 
- *                  <tr> <td> @ref SO_DESTPORT </td> <td> uint16_t </td><td> 0 ~ 65535 </td></tr> 
- *                  <tr> <td> @ref SO_KEEPALIVESEND </td> <td> null </td><td> null </td></tr> 
- *                  <tr> <td> @ref SO_KEEPALIVEAUTO </td> <td> uint8_t </td><td> 0 ~ 255 </td></tr> 
+ *                  <tr> <td> @ref SO_DESTIP </td> <td> uint8_t[4] </td><td>  </td></tr>
+ *                  <tr> <td> @ref SO_DESTPORT </td> <td> uint16_t </td><td> 0 ~ 65535 </td></tr>
+ *                  <tr> <td> @ref SO_KEEPALIVESEND </td> <td> null </td><td> null </td></tr>
+ *                  <tr> <td> @ref SO_KEEPALIVEAUTO </td> <td> uint8_t </td><td> 0 ~ 255 </td></tr>
  *             </table>
- * @return 
+ * @return
  * - @b Success : @ref SOCK_OK \n
- * - @b Fail 
+ * - @b Fail
  *  - @ref SOCKERR_SOCKNUM     - Invalid Socket number \n
  *  - @ref SOCKERR_SOCKMODE    - Invalid socket mode \n
  *  - @ref SOCKERR_SOCKOPT     - Invalid socket option or its value \n
@@ -435,7 +435,7 @@ int8_t  WIZCHIP_EXPORT(ctlsocket)(uint8_t sn, ctlsock_type cstype, void* arg);
  */
 int8_t  WIZCHIP_EXPORT(setsockopt)(uint8_t sn, sockopt_type sotype, void* arg);
 
-/** 
+/**
  * @ingroup WIZnet_socket_APIs
  *  @brief get socket options
  *  @details Get socket option like as FLAG, TTL, MSS, and so on. Refer to @ref sockopt_type
@@ -447,24 +447,24 @@ int8_t  WIZCHIP_EXPORT(setsockopt)(uint8_t sn, sockopt_type sotype, void* arg);
  *                  <tr> <td> @ref SO_FLAG </td> <td> uint8_t </td><td> @ref SF_ETHER_OWN, etc... </td> </tr>
  *                  <tr> <td> @ref SO_TOS </td> <td> uint8_t </td><td> 0 ~ 255 </td> </tr>
  *                  <tr> <td> @ref SO_MSS </td> <td> uint16_t </td><td> 0 ~ 65535 </td> </tr>
- *                  <tr> <td> @ref SO_DESTIP </td> <td> uint8_t[4] </td><td>  </td></tr> 
- *                  <tr> <td> @ref SO_DESTPORT </td> <td> uint16_t </td><td>  </td></tr> 
- *                  <tr> <td> @ref SO_KEEPALIVEAUTO </td> <td> uint8_t </td><td> 0 ~ 255 </td></tr> 
- *                  <tr> <td> @ref SO_SENDBUF </td> <td> uint16_t </td><td> 0 ~ 65535 </td></tr>  
- *                  <tr> <td> @ref SO_RECVBUF </td> <td> uint16_t </td><td> 0 ~ 65535 </td></tr>  
- *                  <tr> <td> @ref SO_STATUS </td> <td> uint8_t </td><td> @ref SOCK_ESTABLISHED, etc.. </td></tr>  
+ *                  <tr> <td> @ref SO_DESTIP </td> <td> uint8_t[4] </td><td>  </td></tr>
+ *                  <tr> <td> @ref SO_DESTPORT </td> <td> uint16_t </td><td>  </td></tr>
+ *                  <tr> <td> @ref SO_KEEPALIVEAUTO </td> <td> uint8_t </td><td> 0 ~ 255 </td></tr>
+ *                  <tr> <td> @ref SO_SENDBUF </td> <td> uint16_t </td><td> 0 ~ 65535 </td></tr>
+ *                  <tr> <td> @ref SO_RECVBUF </td> <td> uint16_t </td><td> 0 ~ 65535 </td></tr>
+ *                  <tr> <td> @ref SO_STATUS </td> <td> uint8_t </td><td> @ref SOCK_ESTABLISHED, etc.. </td></tr>
  *                  <tr> <td> @ref SO_REMAINSIZE </td> <td> uint16_t </td><td> 0~ 65535 </td></tr>
  *                  <tr> <td> @ref SO_PACKINFO </td> <td> uint8_t </td><td> @ref PACK_FIRST, etc... </td></tr>
  *             </table>
- * @return 
+ * @return
  * - @b Success : @ref SOCK_OK \n
- * - @b Fail 
+ * - @b Fail
  *  - @ref SOCKERR_SOCKNUM     - Invalid Socket number \n
  *  - @ref SOCKERR_SOCKOPT     - Invalid socket option or its value \n
  *  - @ref SOCKERR_SOCKMODE    - Invalid socket mode \n
  * @note
  *   The option as PACK_REMAINED and SO_PACKINFO is valid only in NON-TCP mode and after call @ref recvfrom(). \n
- *   When SO_PACKINFO value is PACK_FIRST and the return value of recvfrom() is zero, 
+ *   When SO_PACKINFO value is PACK_FIRST and the return value of recvfrom() is zero,
  *   This means the zero byte UDP data(UDP Header only) received.
   */
 int8_t  WIZCHIP_EXPORT(getsockopt)(uint8_t sn, sockopt_type sotype, void* arg);
diff --git a/drivers/wiznet5k/ethernet/w5200/w5200.c b/drivers/wiznet5k/ethernet/w5200/w5200.c
index 8c3780792..cbcb13609 100644
--- a/drivers/wiznet5k/ethernet/w5200/w5200.c
+++ b/drivers/wiznet5k/ethernet/w5200/w5200.c
@@ -22,30 +22,30 @@
 //!
 //! Copyright (c)  2013, WIZnet Co., LTD.
 //! All rights reserved.
-//! 
-//! Redistribution and use in source and binary forms, with or without 
-//! modification, are permitted provided that the following conditions 
-//! are met: 
-//! 
-//!     * Redistributions of source code must retain the above copyright 
-//! notice, this list of conditions and the following disclaimer. 
+//!
+//! Redistribution and use in source and binary forms, with or without
+//! modification, are permitted provided that the following conditions
+//! are met:
+//!
+//!     * Redistributions of source code must retain the above copyright
+//! notice, this list of conditions and the following disclaimer.
 //!     * Redistributions in binary form must reproduce the above copyright
 //! notice, this list of conditions and the following disclaimer in the
-//! documentation and/or other materials provided with the distribution. 
-//!     * Neither the name of the <ORGANIZATION> nor the names of its 
-//! contributors may be used to endorse or promote products derived 
-//! from this software without specific prior written permission. 
-//! 
+//! documentation and/or other materials provided with the distribution.
+//!     * Neither the name of the <ORGANIZATION> nor the names of its
+//! contributors may be used to endorse or promote products derived
+//! from this software without specific prior written permission.
+//!
 //! THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
-//! AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 
+//! AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
 //! IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
-//! ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE 
-//! LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 
-//! CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 
+//! ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
+//! LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+//! CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
 //! SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
-//! INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 
-//! CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 
-//! ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF 
+//! INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+//! CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+//! ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
 //! THE POSSIBILITY OF SUCH DAMAGE.
 //
 //*****************************************************************************
diff --git a/drivers/wiznet5k/ethernet/w5200/w5200.h b/drivers/wiznet5k/ethernet/w5200/w5200.h
index 63561940f..988c8827f 100644
--- a/drivers/wiznet5k/ethernet/w5200/w5200.h
+++ b/drivers/wiznet5k/ethernet/w5200/w5200.h
@@ -13,30 +13,30 @@
 //!
 //! Copyright (c)  2013, WIZnet Co., LTD.
 //! All rights reserved.
-//! 
-//! Redistribution and use in source and binary forms, with or without 
-//! modification, are permitted provided that the following conditions 
-//! are met: 
-//! 
-//!     * Redistributions of source code must retain the above copyright 
-//! notice, this list of conditions and the following disclaimer. 
+//!
+//! Redistribution and use in source and binary forms, with or without
+//! modification, are permitted provided that the following conditions
+//! are met:
+//!
+//!     * Redistributions of source code must retain the above copyright
+//! notice, this list of conditions and the following disclaimer.
 //!     * Redistributions in binary form must reproduce the above copyright
 //! notice, this list of conditions and the following disclaimer in the
-//! documentation and/or other materials provided with the distribution. 
-//!     * Neither the name of the <ORGANIZATION> nor the names of its 
-//! contributors may be used to endorse or promote products derived 
-//! from this software without specific prior written permission. 
-//! 
+//! documentation and/or other materials provided with the distribution.
+//!     * Neither the name of the <ORGANIZATION> nor the names of its
+//! contributors may be used to endorse or promote products derived
+//! from this software without specific prior written permission.
+//!
 //! THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
-//! AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 
+//! AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
 //! IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
-//! ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE 
-//! LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 
-//! CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 
+//! ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
+//! LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+//! CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
 //! SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
-//! INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 
-//! CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 
-//! ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF 
+//! INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+//! CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+//! ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
 //! THE POSSIBILITY OF SUCH DAMAGE.
 //
 //*****************************************************************************
@@ -66,8 +66,8 @@
  * - @ref WIZCHIP_register : @ref Common_register_group and @ref Socket_register_group
  * - @ref WIZCHIP_IO_Functions : @ref Basic_IO_function, @ref Common_register_access_function and @ref Socket_register_access_function
  */
- 
- 
+
+
 /**
  * @defgroup WIZCHIP_register WIZCHIP register
  * @ingroup W5500
@@ -138,9 +138,9 @@
  * @sa UIPR, UPORTR : ICMP message.
  * @sa PHYCFGR, VERSIONR : etc.
  */
- 
-  
- 
+
+
+
 /**
  * @defgroup Socket_register_group Socket register
  * @ingroup WIZCHIP_register
@@ -153,9 +153,9 @@
  * @sa Sn_MSSR, Sn_TOS, Sn_TTL, Sn_KPALVTR, Sn_FRAG : Internet protocol.
  * @sa Sn_RXBUF_SIZE, Sn_TXBUF_SIZE, Sn_TX_FSR, Sn_TX_RD, Sn_TX_WR, Sn_RX_RSR, Sn_RX_RD, Sn_RX_WR : Data communication
  */
- 
- 
- 
+
+
+
  /**
  * @defgroup Basic_IO_function Basic I/O function
  * @ingroup WIZCHIP_IO_Functions
@@ -173,7 +173,7 @@
  * @ingroup WIZCHIP_IO_Functions
  * @brief These are functions to access <b>socket registers</b>.
  */
- 
+
 //------------------------------- defgroup end --------------------------------------------
 //----------------------------- W5500 Common Registers IOMAP -----------------------------
 /**
@@ -276,7 +276,7 @@
  * @brief Socket Interrupt Mask Register(R/W)
  * @details Each bit of @ref SIMR corresponds to each bit of @ref SIR.
  * When a bit of @ref SIMR is and the corresponding bit of @ref SIR is  Interrupt will be issued.
- * In other words, if a bit of @ref SIMR is  an interrupt will be not issued even if the corresponding bit of @ref SIR is 
+ * In other words, if a bit of @ref SIMR is  an interrupt will be not issued even if the corresponding bit of @ref SIR is
  */
 //#define SIMR               (_W5500_IO_BASE_ + (0x0018 << 8) + (WIZCHIP_CREG_BLOCK << 3))
 
@@ -531,7 +531,7 @@
  */
 #define Sn_TTL(N) WIZCHIP_SREG_ADDR(N, 0x0016)
 // Reserved			         (_W5500_IO_BASE_ + (0x0017 << 8) + (WIZCHIP_SREG_BLOCK(N) << 3))
-// Reserved			         (_W5500_IO_BASE_ + (0x0018 << 8) + (WIZCHIP_SREG_BLOCK(N) << 3)) 
+// Reserved			         (_W5500_IO_BASE_ + (0x0018 << 8) + (WIZCHIP_SREG_BLOCK(N) << 3))
 // Reserved			         (_W5500_IO_BASE_ + (0x0019 << 8) + (WIZCHIP_SREG_BLOCK(N) << 3))
 // Reserved			         (_W5500_IO_BASE_ + (0x001A << 8) + (WIZCHIP_SREG_BLOCK(N) << 3))
 // Reserved			         (_W5500_IO_BASE_ + (0x001B << 8) + (WIZCHIP_SREG_BLOCK(N) << 3))
@@ -633,8 +633,8 @@
  * @ingroup Socket_register_group
  * @brief socket interrupt mask register(R)
  * @details @ref Sn_IMR masks the interrupt of Socket n.
- * Each bit corresponds to each bit of @ref Sn_IR. When a Socket n Interrupt is occurred and the corresponding bit of @ref Sn_IMR is 
- * the corresponding bit of @ref Sn_IR becomes  When both the corresponding bit of @ref Sn_IMR and @ref Sn_IR are and the n-th bit of @ref IR is 
+ * Each bit corresponds to each bit of @ref Sn_IR. When a Socket n Interrupt is occurred and the corresponding bit of @ref Sn_IMR is
+ * the corresponding bit of @ref Sn_IR becomes  When both the corresponding bit of @ref Sn_IMR and @ref Sn_IR are and the n-th bit of @ref IR is
  * Host is interrupted by asserted INTn PIN to low.
  */
 //#define Sn_IMR(N)          (_W5500_IO_BASE_ + (0x002C << 8) + (WIZCHIP_SREG_BLOCK(N) << 3))
@@ -694,7 +694,7 @@
  * @brief Enable PPPoE
  * @details 0 : DisablePPPoE mode\n
  * 1 : EnablePPPoE mode\n
- * If you use ADSL, this bit should be 
+ * If you use ADSL, this bit should be
  */
 #define MR_PPPOE                     0x08
 
@@ -715,7 +715,7 @@
 
 /**
  * @brief Get the destination unreachable message in UDP sending.
- * @details When receiving the ICMP (Destination port unreachable) packet, this bit is set as 
+ * @details When receiving the ICMP (Destination port unreachable) packet, this bit is set as
  * When this bit is  Destination Information such as IP address and Port number may be checked with the corresponding @ref UIPR & @ref UPORTR.
  */
 #define IR_UNREACH                   0x40
@@ -743,7 +743,7 @@
 #define PHYCFGR_OPMDC_100F           (3<<3)
 #define PHYCFGR_OPMDC_100H           (2<<3)
 #define PHYCFGR_OPMDC_10F            (1<<3)
-#define PHYCFGR_OPMDC_10H            (0<<3)           
+#define PHYCFGR_OPMDC_10H            (0<<3)
 #define PHYCFGR_DPX_FULL             (1<<2)
 #define PHYCFGR_DPX_HALF             (0<<2)
 #define PHYCFGR_SPD_100              (1<<1)
@@ -818,7 +818,7 @@
  * @brief Unicast Block in UDP Multicasting
  * @details 0 : disable Unicast Blocking\n
  * 1 : enable Unicast Blocking\n
- * This bit blocks receiving the unicast packet during UDP mode(P[3:0] = 010 and MULTI = 
+ * This bit blocks receiving the unicast packet during UDP mode(P[3:0] = 010 and MULTI =
  */
 //#define Sn_MR_UCASTB                 0x10
 
@@ -866,7 +866,7 @@
  * @brief Multicast Blocking in @ref Sn_MR_MACRAW mode
  * @details 0 : using IGMP version 2\n
  * 1 : using IGMP version 1\n
- * This bit is applied only during UDP mode(P[3:0] = 010 and MULTI = 
+ * This bit is applied only during UDP mode(P[3:0] = 010 and MULTI =
  * It configures the version for IGMP messages (Join/Leave/Report).
  */
 #define Sn_MR_MMB                    Sn_MR_ND
@@ -921,7 +921,7 @@
  * In this mode, Socket n operates as a �TCP serverand waits for  connection-request (SYN packet) from any �TCP client
  * The @ref Sn_SR changes the state from SOCK_INIT to SOCKET_LISTEN.
  * When a �TCP clientconnection request is successfully established,
- * the @ref Sn_SR changes from SOCK_LISTEN to SOCK_ESTABLISHED and the Sn_IR(0) becomes 
+ * the @ref Sn_SR changes from SOCK_LISTEN to SOCK_ESTABLISHED and the Sn_IR(0) becomes
  * But when a �TCP clientconnection request is failed, Sn_IR(3) becomes and the status of @ref Sn_SR changes to SOCK_CLOSED.
  */
 #define Sn_CR_LISTEN                 0x02
@@ -1132,7 +1132,7 @@
 //#define SOCK_PPPOE                   0x5F
 
 /* IP PROTOCOL */
-#define IPPROTO_IP                   0        //< Dummy for IP 
+#define IPPROTO_IP                   0        //< Dummy for IP
 #define IPPROTO_ICMP                 1        //< Control message protocol
 #define IPPROTO_IGMP                 2        //< Internet group management protocol
 #define IPPROTO_GGP                  3        //< Gateway^2 (deprecated)
@@ -2027,7 +2027,7 @@ uint16_t getSn_RX_RSR(uint8_t sn);
 /////////////////////////////////////
 // Sn_TXBUF & Sn_RXBUF IO function //
 /////////////////////////////////////
-/**  
+/**
  * @brief Gets the max buffer size of socket sn passed as parameter.
  * @param (uint8_t)sn Socket number. It should be <b>0 ~ 7</b>.
  * @return uint16_t. Value of Socket n RX max buffer size.
@@ -2035,7 +2035,7 @@ uint16_t getSn_RX_RSR(uint8_t sn);
 #define getSn_RxMAX(sn) \
 		(getSn_RXBUF_SIZE(sn) << 10)
 
-/**  
+/**
  * @brief Gets the max buffer size of socket sn passed as parameters.
  * @param (uint8_t)sn Socket number. It should be <b>0 ~ 7</b>.
  * @return uint16_t. Value of Socket n TX max buffer size.
diff --git a/drivers/wiznet5k/ethernet/w5500/w5500.c b/drivers/wiznet5k/ethernet/w5500/w5500.c
index 3107b1b71..fef08e2e3 100644
--- a/drivers/wiznet5k/ethernet/w5500/w5500.c
+++ b/drivers/wiznet5k/ethernet/w5500/w5500.c
@@ -20,30 +20,30 @@
 //!
 //! Copyright (c)  2013, WIZnet Co., LTD.
 //! All rights reserved.
-//! 
-//! Redistribution and use in source and binary forms, with or without 
-//! modification, are permitted provided that the following conditions 
-//! are met: 
-//! 
-//!     * Redistributions of source code must retain the above copyright 
-//! notice, this list of conditions and the following disclaimer. 
+//!
+//! Redistribution and use in source and binary forms, with or without
+//! modification, are permitted provided that the following conditions
+//! are met:
+//!
+//!     * Redistributions of source code must retain the above copyright
+//! notice, this list of conditions and the following disclaimer.
 //!     * Redistributions in binary form must reproduce the above copyright
 //! notice, this list of conditions and the following disclaimer in the
-//! documentation and/or other materials provided with the distribution. 
-//!     * Neither the name of the <ORGANIZATION> nor the names of its 
-//! contributors may be used to endorse or promote products derived 
-//! from this software without specific prior written permission. 
-//! 
+//! documentation and/or other materials provided with the distribution.
+//!     * Neither the name of the <ORGANIZATION> nor the names of its
+//! contributors may be used to endorse or promote products derived
+//! from this software without specific prior written permission.
+//!
 //! THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
-//! AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 
+//! AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
 //! IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
-//! ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE 
-//! LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 
-//! CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 
+//! ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
+//! LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+//! CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
 //! SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
-//! INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 
-//! CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 
-//! ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF 
+//! INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+//! CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+//! ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
 //! THE POSSIBILITY OF SUCH DAMAGE.
 //
 //*****************************************************************************
@@ -114,7 +114,7 @@ void     WIZCHIP_WRITE(uint32_t AddrSel, uint8_t wb )
    WIZCHIP.CS._deselect();
    WIZCHIP_CRITICAL_EXIT();
 }
-         
+
 void     WIZCHIP_READ_BUF (uint32_t AddrSel, uint8_t* pBuf, uint16_t len)
 {
    uint8_t spi_data[3];
@@ -213,7 +213,7 @@ void wiz_send_data(uint8_t sn, uint8_t *wizdata, uint16_t len)
    addrsel = ((uint32_t)ptr << 8) + (WIZCHIP_TXBUF_BLOCK(sn) << 3);
    //
    WIZCHIP_WRITE_BUF(addrsel,wizdata, len);
-   
+
    ptr += len;
    setSn_TX_WR(sn,ptr);
 }
@@ -222,7 +222,7 @@ void wiz_recv_data(uint8_t sn, uint8_t *wizdata, uint16_t len)
 {
    uint16_t ptr = 0;
    uint32_t addrsel = 0;
-   
+
    if(len == 0) return;
    ptr = getSn_RX_RD(sn);
    //M20140501 : implict type casting -> explict type casting
@@ -231,7 +231,7 @@ void wiz_recv_data(uint8_t sn, uint8_t *wizdata, uint16_t len)
    //
    WIZCHIP_READ_BUF(addrsel, wizdata, len);
    ptr += len;
-   
+
    setSn_RX_RD(sn,ptr);
 }
 
@@ -244,4 +244,3 @@ void wiz_recv_ignore(uint8_t sn, uint16_t len)
    ptr += len;
    setSn_RX_RD(sn,ptr);
 }
-
diff --git a/drivers/wiznet5k/ethernet/w5500/w5500.h b/drivers/wiznet5k/ethernet/w5500/w5500.h
index c2afb180e..f94eed3af 100644
--- a/drivers/wiznet5k/ethernet/w5500/w5500.h
+++ b/drivers/wiznet5k/ethernet/w5500/w5500.h
@@ -11,30 +11,30 @@
 //!
 //! Copyright (c)  2013, WIZnet Co., LTD.
 //! All rights reserved.
-//! 
-//! Redistribution and use in source and binary forms, with or without 
-//! modification, are permitted provided that the following conditions 
-//! are met: 
-//! 
-//!     * Redistributions of source code must retain the above copyright 
-//! notice, this list of conditions and the following disclaimer. 
+//!
+//! Redistribution and use in source and binary forms, with or without
+//! modification, are permitted provided that the following conditions
+//! are met:
+//!
+//!     * Redistributions of source code must retain the above copyright
+//! notice, this list of conditions and the following disclaimer.
 //!     * Redistributions in binary form must reproduce the above copyright
 //! notice, this list of conditions and the following disclaimer in the
-//! documentation and/or other materials provided with the distribution. 
-//!     * Neither the name of the <ORGANIZATION> nor the names of its 
-//! contributors may be used to endorse or promote products derived 
-//! from this software without specific prior written permission. 
-//! 
+//! documentation and/or other materials provided with the distribution.
+//!     * Neither the name of the <ORGANIZATION> nor the names of its
+//! contributors may be used to endorse or promote products derived
+//! from this software without specific prior written permission.
+//!
 //! THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
-//! AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 
+//! AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
 //! IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
-//! ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE 
-//! LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 
-//! CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 
+//! ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
+//! LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+//! CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
 //! SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
-//! INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 
-//! CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 
-//! ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF 
+//! INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+//! CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+//! ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
 //! THE POSSIBILITY OF SUCH DAMAGE.
 //
 //*****************************************************************************
@@ -76,8 +76,8 @@
  * - @ref WIZCHIP_register : @ref Common_register_group and @ref Socket_register_group
  * - @ref WIZCHIP_IO_Functions : @ref Basic_IO_function, @ref Common_register_access_function and @ref Socket_register_access_function
  */
- 
- 
+
+
 /**
  * @defgroup WIZCHIP_register WIZCHIP register
  * @ingroup W5500
@@ -148,9 +148,9 @@
  * @sa UIPR, UPORTR : ICMP message.
  * @sa PHYCFGR, VERSIONR : etc.
  */
- 
-  
- 
+
+
+
 /**
  * @defgroup Socket_register_group Socket register
  * @ingroup WIZCHIP_register
@@ -163,9 +163,9 @@
  * @sa Sn_MSSR, Sn_TOS, Sn_TTL, Sn_KPALVTR, Sn_FRAG : Internet protocol.
  * @sa Sn_RXBUF_SIZE, Sn_TXBUF_SIZE, Sn_TX_FSR, Sn_TX_RD, Sn_TX_WR, Sn_RX_RSR, Sn_RX_RD, Sn_RX_WR : Data communication
  */
- 
- 
- 
+
+
+
  /**
  * @defgroup Basic_IO_function Basic I/O function
  * @ingroup WIZCHIP_IO_Functions
@@ -183,7 +183,7 @@
  * @ingroup WIZCHIP_IO_Functions
  * @brief These are functions to access <b>socket registers</b>.
  */
- 
+
 //------------------------------- defgroup end --------------------------------------------
 //----------------------------- W5500 Common Registers IOMAP -----------------------------
 /**
@@ -286,7 +286,7 @@
  * @brief Socket Interrupt Mask Register(R/W)
  * @details Each bit of @ref SIMR corresponds to each bit of @ref SIR.
  * When a bit of @ref SIMR is and the corresponding bit of @ref SIR is  Interrupt will be issued.
- * In other words, if a bit of @ref SIMR is  an interrupt will be not issued even if the corresponding bit of @ref SIR is 
+ * In other words, if a bit of @ref SIMR is  an interrupt will be not issued even if the corresponding bit of @ref SIR is
  */
 #define SIMR               (_W5500_IO_BASE_ + (0x0018 << 8) + (WIZCHIP_CREG_BLOCK << 3))
 
@@ -540,7 +540,7 @@
  */
 #define Sn_TTL(N)          (_W5500_IO_BASE_ + (0x0016 << 8) + (WIZCHIP_SREG_BLOCK(N) << 3))
 // Reserved			         (_W5500_IO_BASE_ + (0x0017 << 8) + (WIZCHIP_SREG_BLOCK(N) << 3))
-// Reserved			         (_W5500_IO_BASE_ + (0x0018 << 8) + (WIZCHIP_SREG_BLOCK(N) << 3)) 
+// Reserved			         (_W5500_IO_BASE_ + (0x0018 << 8) + (WIZCHIP_SREG_BLOCK(N) << 3))
 // Reserved			         (_W5500_IO_BASE_ + (0x0019 << 8) + (WIZCHIP_SREG_BLOCK(N) << 3))
 // Reserved			         (_W5500_IO_BASE_ + (0x001A << 8) + (WIZCHIP_SREG_BLOCK(N) << 3))
 // Reserved			         (_W5500_IO_BASE_ + (0x001B << 8) + (WIZCHIP_SREG_BLOCK(N) << 3))
@@ -642,8 +642,8 @@
  * @ingroup Socket_register_group
  * @brief socket interrupt mask register(R)
  * @details @ref Sn_IMR masks the interrupt of Socket n.
- * Each bit corresponds to each bit of @ref Sn_IR. When a Socket n Interrupt is occurred and the corresponding bit of @ref Sn_IMR is 
- * the corresponding bit of @ref Sn_IR becomes  When both the corresponding bit of @ref Sn_IMR and @ref Sn_IR are and the n-th bit of @ref IR is 
+ * Each bit corresponds to each bit of @ref Sn_IR. When a Socket n Interrupt is occurred and the corresponding bit of @ref Sn_IMR is
+ * the corresponding bit of @ref Sn_IR becomes  When both the corresponding bit of @ref Sn_IMR and @ref Sn_IR are and the n-th bit of @ref IR is
  * Host is interrupted by asserted INTn PIN to low.
  */
 #define Sn_IMR(N)          (_W5500_IO_BASE_ + (0x002C << 8) + (WIZCHIP_SREG_BLOCK(N) << 3))
@@ -703,7 +703,7 @@
  * @brief Enable PPPoE
  * @details 0 : DisablePPPoE mode\n
  * 1 : EnablePPPoE mode\n
- * If you use ADSL, this bit should be 
+ * If you use ADSL, this bit should be
  */
 #define MR_PPPOE                     0x08
 
@@ -724,7 +724,7 @@
 
 /**
  * @brief Get the destination unreachable message in UDP sending.
- * @details When receiving the ICMP (Destination port unreachable) packet, this bit is set as 
+ * @details When receiving the ICMP (Destination port unreachable) packet, this bit is set as
  * When this bit is  Destination Information such as IP address and Port number may be checked with the corresponding @ref UIPR & @ref UPORTR.
  */
 #define IR_UNREACH                   0x40
@@ -752,7 +752,7 @@
 #define PHYCFGR_OPMDC_100F           (3<<3)
 #define PHYCFGR_OPMDC_100H           (2<<3)
 #define PHYCFGR_OPMDC_10F            (1<<3)
-#define PHYCFGR_OPMDC_10H            (0<<3)           
+#define PHYCFGR_OPMDC_10H            (0<<3)
 #define PHYCFGR_DPX_FULL             (1<<2)
 #define PHYCFGR_DPX_HALF             (0<<2)
 #define PHYCFGR_SPD_100              (1<<1)
@@ -823,7 +823,7 @@
  * @brief Unicast Block in UDP Multicasting
  * @details 0 : disable Unicast Blocking\n
  * 1 : enable Unicast Blocking\n
- * This bit blocks receiving the unicast packet during UDP mode(P[3:0] = 010 and MULTI = 
+ * This bit blocks receiving the unicast packet during UDP mode(P[3:0] = 010 and MULTI =
  */
 #define Sn_MR_UCASTB                 0x10
 
@@ -871,7 +871,7 @@
  * @brief Multicast Blocking in @ref Sn_MR_MACRAW mode
  * @details 0 : using IGMP version 2\n
  * 1 : using IGMP version 1\n
- * This bit is applied only during UDP mode(P[3:0] = 010 and MULTI = 
+ * This bit is applied only during UDP mode(P[3:0] = 010 and MULTI =
  * It configures the version for IGMP messages (Join/Leave/Report).
  */
 #define Sn_MR_MMB                    Sn_MR_ND
@@ -926,7 +926,7 @@
  * In this mode, Socket n operates as a �TCP serverand waits for  connection-request (SYN packet) from any �TCP client
  * The @ref Sn_SR changes the state from SOCK_INIT to SOCKET_LISTEN.
  * When a �TCP clientconnection request is successfully established,
- * the @ref Sn_SR changes from SOCK_LISTEN to SOCK_ESTABLISHED and the Sn_IR(0) becomes 
+ * the @ref Sn_SR changes from SOCK_LISTEN to SOCK_ESTABLISHED and the Sn_IR(0) becomes
  * But when a �TCP clientconnection request is failed, Sn_IR(3) becomes and the status of @ref Sn_SR changes to SOCK_CLOSED.
  */
 #define Sn_CR_LISTEN                 0x02
@@ -1137,7 +1137,7 @@
 //#define SOCK_PPPOE                   0x5F
 
 /* IP PROTOCOL */
-#define IPPROTO_IP                   0        //< Dummy for IP 
+#define IPPROTO_IP                   0        //< Dummy for IP
 #define IPPROTO_ICMP                 1        //< Control message protocol
 #define IPPROTO_IGMP                 2        //< Internet group management protocol
 #define IPPROTO_GGP                  3        //< Gateway^2 (deprecated)
@@ -1994,7 +1994,7 @@ uint16_t getSn_RX_RSR(uint8_t sn);
 /////////////////////////////////////
 // Sn_TXBUF & Sn_RXBUF IO function //
 /////////////////////////////////////
-/**  
+/**
  * @brief Gets the max buffer size of socket sn passed as parameter.
  * @param (uint8_t)sn Socket number. It should be <b>0 ~ 7</b>.
  * @return uint16_t. Value of Socket n RX max buffer size.
@@ -2002,7 +2002,7 @@ uint16_t getSn_RX_RSR(uint8_t sn);
 #define getSn_RxMAX(sn) \
 		(getSn_RXBUF_SIZE(sn) << 10)
 
-/**  
+/**
  * @brief Gets the max buffer size of socket sn passed as parameters.
  * @param (uint8_t)sn Socket number. It should be <b>0 ~ 7</b>.
  * @return uint16_t. Value of Socket n TX max buffer size.
diff --git a/drivers/wiznet5k/ethernet/wizchip_conf.c b/drivers/wiznet5k/ethernet/wizchip_conf.c
index 3e54d2c90..c7a2f50f0 100644
--- a/drivers/wiznet5k/ethernet/wizchip_conf.c
+++ b/drivers/wiznet5k/ethernet/wizchip_conf.c
@@ -1,4 +1,4 @@
-//****************************************************************************/ 
+//****************************************************************************/
 //!
 //! \file wizchip_conf.c
 //! \brief WIZCHIP Config Header File.
@@ -17,30 +17,30 @@
 //!
 //! Copyright (c)  2013, WIZnet Co., LTD.
 //! All rights reserved.
-//! 
-//! Redistribution and use in source and binary forms, with or without 
-//! modification, are permitted provided that the following conditions 
-//! are met: 
-//! 
-//!     * Redistributions of source code must retain the above copyright 
-//! notice, this list of conditions and the following disclaimer. 
+//!
+//! Redistribution and use in source and binary forms, with or without
+//! modification, are permitted provided that the following conditions
+//! are met:
+//!
+//!     * Redistributions of source code must retain the above copyright
+//! notice, this list of conditions and the following disclaimer.
 //!     * Redistributions in binary form must reproduce the above copyright
 //! notice, this list of conditions and the following disclaimer in the
-//! documentation and/or other materials provided with the distribution. 
-//!     * Neither the name of the <ORGANIZATION> nor the names of its 
-//! contributors may be used to endorse or promote products derived 
-//! from this software without specific prior written permission. 
-//! 
+//! documentation and/or other materials provided with the distribution.
+//!     * Neither the name of the <ORGANIZATION> nor the names of its
+//! contributors may be used to endorse or promote products derived
+//! from this software without specific prior written permission.
+//!
 //! THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
-//! AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 
+//! AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
 //! IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
-//! ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE 
-//! LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 
-//! CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 
+//! ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
+//! LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+//! CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
 //! SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
-//! INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 
-//! CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 
-//! ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF 
+//! INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+//! CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+//! ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
 //! THE POSSIBILITY OF SUCH DAMAGE.
 //
 //*****************************************************************************/
@@ -88,7 +88,7 @@ uint8_t wizchip_bus_readbyte(uint32_t AddrSel) { return * ((volatile uint8_t *)(
  * @note This function help not to access wrong address. If you do not describe this function or register any functions,
  * null function is called.
  */
- 
+
 //M20140501 : Explict pointer type casting
 //void 	wizchip_bus_writebyte(uint32_t AddrSel, uint8_t wb)  { *((volatile uint8_t*) AddrSel) = wb; };
 void 	wizchip_bus_writebyte(uint32_t AddrSel, uint8_t wb)  { *((volatile uint8_t*)((ptrdiff_t)AddrSel)) = wb; };
@@ -160,7 +160,7 @@ void reg_wizchip_cs_cbfunc(void(*cs_sel)(void), void(*cs_desel)(void))
 void reg_wizchip_bus_cbfunc(uint8_t(*bus_rb)(uint32_t addr), void (*bus_wb)(uint32_t addr, uint8_t wb))
 {
    while(!(WIZCHIP.if_mode & _WIZCHIP_IO_MODE_BUS_));
-   
+
    if(!bus_rb || !bus_wb)
    {
       WIZCHIP.IF.BUS._read_byte   = wizchip_bus_readbyte;
@@ -176,7 +176,7 @@ void reg_wizchip_bus_cbfunc(uint8_t(*bus_rb)(uint32_t addr), void (*bus_wb)(uint
 void reg_wizchip_spi_cbfunc(void (*spi_rb)(uint8_t *, uint32_t), void (*spi_wb)(const uint8_t *, uint32_t))
 {
    while(!(WIZCHIP.if_mode & _WIZCHIP_IO_MODE_SPI_));
-   
+
    if(!spi_rb || !spi_wb)
    {
       WIZCHIP.IF.SPI._read_bytes   = wizchip_spi_readbytes;
@@ -199,7 +199,7 @@ int8_t ctlwizchip(ctlwizchip_type cwtype, void* arg)
          wizchip_sw_reset();
          break;
       case CW_INIT_WIZCHIP:
-         if(arg != 0) 
+         if(arg != 0)
          {
             ptmp[0] = (uint8_t*)arg;
             ptmp[1] = ptmp[0] + _WIZCHIP_SOCK_NUM_;
@@ -213,7 +213,7 @@ int8_t ctlwizchip(ctlwizchip_type cwtype, void* arg)
          break;
       case CW_SET_INTRMASK:
          wizchip_setinterruptmask(*((intr_kind*)arg));
-         break;         
+         break;
       case CW_GET_INTRMASK:
          *((intr_kind*)arg) = wizchip_getinterruptmask();
          break;
@@ -267,7 +267,7 @@ int8_t ctlwizchip(ctlwizchip_type cwtype, void* arg)
 
 int8_t ctlnetwork(ctlnetwork_type cntype, void* arg)
 {
-   
+
    switch(cntype)
    {
       case CN_SET_NETINFO:
@@ -346,7 +346,7 @@ void wizchip_clrinterrupt(intr_kind intr)
 #if _WIZCHIP_ == 5200
    ir |= (1 << 6);
 #endif
-   
+
 #if _WIZCHIP_ < 5200
    sir &= 0x0F;
 #endif
@@ -357,7 +357,7 @@ void wizchip_clrinterrupt(intr_kind intr)
 #else
    setIR(ir);
    setSIR(sir);
-#endif   
+#endif
 }
 
 intr_kind wizchip_getinterrupt(void)
@@ -371,7 +371,7 @@ intr_kind wizchip_getinterrupt(void)
 #else
    ir  = getIR();
    sir = getSIR();
-#endif         
+#endif
 
 #if _WIZCHIP_ < 5500
    ir &= ~(1<<4); // IK_WOL
@@ -394,7 +394,7 @@ void wizchip_setinterruptmask(intr_kind intr)
 #if _WIZCHIP_ == 5200
    imr &= ~(1 << 6);
 #endif
-   
+
 #if _WIZCHIP_ < 5200
    simr &= 0x0F;
 #endif
@@ -405,7 +405,7 @@ void wizchip_setinterruptmask(intr_kind intr)
 #else
    setIMR(imr);
    setSIMR(simr);
-#endif   
+#endif
 }
 
 intr_kind wizchip_getinterruptmask(void)
@@ -419,7 +419,7 @@ intr_kind wizchip_getinterruptmask(void)
 #else
    imr  = getIMR();
    simr = getSIMR();
-#endif         
+#endif
 
 #if _WIZCHIP_ < 5500
    imr &= ~(1<<4); // IK_WOL
@@ -459,12 +459,12 @@ int8_t wizphy_getphypmode(void)
    #if   _WIZCHIP_ == 5200
       if(getPHYSTATUS() & PHYSTATUS_POWERDOWN)
          tmp = PHY_POWER_DOWN;
-      else          
+      else
          tmp = PHY_POWER_NORM;
    #elif _WIZCHIP_ == 5500
       if(getPHYCFGR() & PHYCFGR_OPMDC_PDOWN)
          tmp = PHY_POWER_DOWN;
-      else 
+      else
          tmp = PHY_POWER_NORM;
    #else
       tmp = -1;
@@ -479,7 +479,7 @@ void wizphy_reset(void)
    uint8_t tmp = getPHYCFGR();
    tmp &= PHYCFGR_RST;
    setPHYCFGR(tmp);
-   tmp = getPHYCFGR(); 
+   tmp = getPHYCFGR();
    tmp |= ~PHYCFGR_RST;
    setPHYCFGR(tmp);
 }
@@ -501,7 +501,7 @@ void wizphy_setphyconf(wiz_PhyConf* phyconf)
             tmp |= PHYCFGR_OPMDC_100F;
          else
             tmp |= PHYCFGR_OPMDC_10F;
-      }   
+      }
       else
       {
          if(phyconf->speed == PHY_SPEED_100)
@@ -522,7 +522,7 @@ void wizphy_getphyconf(wiz_PhyConf* phyconf)
    switch(tmp & PHYCFGR_OPMDC_ALLA)
    {
       case PHYCFGR_OPMDC_ALLA:
-      case PHYCFGR_OPMDC_100FA: 
+      case PHYCFGR_OPMDC_100FA:
          phyconf->mode = PHY_MODE_AUTONEGO;
          break;
       default:
@@ -565,7 +565,7 @@ int8_t wizphy_setphypmode(uint8_t pmode)
    uint8_t tmp = 0;
    tmp = getPHYCFGR();
    if((tmp & PHYCFGR_OPMD)== 0) return -1;
-   tmp &= ~PHYCFGR_OPMDC_ALLA;         
+   tmp &= ~PHYCFGR_OPMDC_ALLA;
    if( pmode == PHY_POWER_DOWN)
       tmp |= PHYCFGR_OPMDC_PDOWN;
    else
@@ -633,11 +633,11 @@ uint8_t *wizchip_getsubn(void) {
 int8_t wizchip_setnetmode(netmode_type netmode)
 {
    uint8_t tmp = 0;
-#if _WIZCHIP_ != 5500   
+#if _WIZCHIP_ != 5500
    if(netmode & ~(NM_WAKEONLAN | NM_PPPOE | NM_PINGBLOCK)) return -1;
 #else
    if(netmode & ~(NM_WAKEONLAN | NM_PPPOE | NM_PINGBLOCK | NM_FORCEARP)) return -1;
-#endif      
+#endif
    tmp = getMR();
    tmp |= (uint8_t)netmode;
    setMR(tmp);
diff --git a/drivers/wiznet5k/ethernet/wizchip_conf.h b/drivers/wiznet5k/ethernet/wizchip_conf.h
index 10f12a794..509ba0668 100644
--- a/drivers/wiznet5k/ethernet/wizchip_conf.h
+++ b/drivers/wiznet5k/ethernet/wizchip_conf.h
@@ -11,30 +11,30 @@
 //!
 //! Copyright (c)  2013, WIZnet Co., LTD.
 //! All rights reserved.
-//! 
-//! Redistribution and use in source and binary forms, with or without 
-//! modification, are permitted provided that the following conditions 
-//! are met: 
-//! 
-//!     * Redistributions of source code must retain the above copyright 
-//! notice, this list of conditions and the following disclaimer. 
+//!
+//! Redistribution and use in source and binary forms, with or without
+//! modification, are permitted provided that the following conditions
+//! are met:
+//!
+//!     * Redistributions of source code must retain the above copyright
+//! notice, this list of conditions and the following disclaimer.
 //!     * Redistributions in binary form must reproduce the above copyright
 //! notice, this list of conditions and the following disclaimer in the
-//! documentation and/or other materials provided with the distribution. 
-//!     * Neither the name of the <ORGANIZATION> nor the names of its 
-//! contributors may be used to endorse or promote products derived 
-//! from this software without specific prior written permission. 
-//! 
+//! documentation and/or other materials provided with the distribution.
+//!     * Neither the name of the <ORGANIZATION> nor the names of its
+//! contributors may be used to endorse or promote products derived
+//! from this software without specific prior written permission.
+//!
 //! THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
-//! AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 
+//! AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
 //! IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
-//! ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE 
-//! LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 
-//! CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 
+//! ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
+//! LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+//! CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
 //! SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
-//! INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 
-//! CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 
-//! ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF 
+//! INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+//! CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+//! ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
 //! THE POSSIBILITY OF SUCH DAMAGE.
 //
 //*****************************************************************************
@@ -42,9 +42,9 @@
 /**
  * @defgroup extra_functions 2. WIZnet Extra Functions
  *
- * @brief These functions is optional function. It could be replaced at WIZCHIP I/O function because they were made by WIZCHIP I/O functions.  
+ * @brief These functions is optional function. It could be replaced at WIZCHIP I/O function because they were made by WIZCHIP I/O functions.
  * @details There are functions of configuring WIZCHIP, network, interrupt, phy, network information and timer. \n
- * 
+ *
  */
 
 #ifndef  _WIZCHIP_CONF_H_
@@ -97,10 +97,10 @@
    #include "w5200/w5200.h"
 #elif (_WIZCHIP_ == 5500)
   #define _WIZCHIP_ID_                 "W5500\0"
-  
+
 /**
  * @brief Define interface mode. \n
- * @todo Should select interface mode as chip. 
+ * @todo Should select interface mode as chip.
  *        - @ref \_WIZCHIP_IO_MODE_SPI_ \n
  *          -@ref \_WIZCHIP_IO_MODE_SPI_VDM_ : Valid only in @ref \_WIZCHIP_ == 5500 \n
  *          -@ref \_WIZCHIP_IO_MODE_SPI_FDM_ : Valid only in @ref \_WIZCHIP_ == 5500 \n
@@ -109,12 +109,12 @@
  *          - @ref \_WIZCHIP_IO_MODE_BUS_INDIR_ \n
  *        - Others will be defined in future. \n\n
  *        ex> <code> #define \_WIZCHIP_IO_MODE_ \_WIZCHIP_IO_MODE_SPI_VDM_ </code>
- *       
+ *
  */
    //#define _WIZCHIP_IO_MODE_           _WIZCHIP_IO_MODE_SPI_FDM_
    #define _WIZCHIP_IO_MODE_           _WIZCHIP_IO_MODE_SPI_VDM_
    #include "w5500/w5500.h"
-#else 
+#else
    #error "Unknown defined _WIZCHIP_. You should define one of 5100, 5200, and 5500 !!!"
 #endif
 
@@ -128,19 +128,19 @@
  *       @ref \_WIZCHIP_IO_MODE_BUS_DIR_, @ref \_WIZCHIP_IO_MODE_BUS_INDIR_). \n\n
  *       ex> <code> #define \_WIZCHIP_IO_BASE_      0x00008000 </code>
  */
-#define _WIZCHIP_IO_BASE_              0x00000000  // 
+#define _WIZCHIP_IO_BASE_              0x00000000  //
 
 #if _WIZCHIP_IO_MODE_ & _WIZCHIP_IO_MODE_BUS_
    #ifndef _WIZCHIP_IO_BASE_
       #error "You should be define _WIZCHIP_IO_BASE to fit your system memory map."
    #endif
-#endif   
+#endif
 
 #if _WIZCHIP_ > 5100
    #define _WIZCHIP_SOCK_NUM_   8   ///< The count of independant socket of @b WIZCHIP
 #else
    #define _WIZCHIP_SOCK_NUM_   4   ///< The count of independant socket of @b WIZCHIP
-#endif      
+#endif
 
 
 /********************************************************
@@ -159,9 +159,9 @@ typedef struct __WIZCHIP
     */
    struct _CRIS
    {
-      void (*_enter)  (void);       ///< crtical section enter 
-      void (*_exit) (void);         ///< critial section exit  
-   }CRIS;  
+      void (*_enter)  (void);       ///< crtical section enter
+      void (*_exit) (void);         ///< critial section exit
+   }CRIS;
    /**
     *  The set of @ref\_WIZCHIP_ select control callback func.
     */
@@ -169,20 +169,20 @@ typedef struct __WIZCHIP
    {
       void (*_select)  (void);      ///< @ref \_WIZCHIP_ selected
       void (*_deselect)(void);      ///< @ref \_WIZCHIP_ deselected
-   }CS;  
+   }CS;
    /**
     * The set of interface IO callback func.
     */
    union _IF
-   {	 
+   {
       /**
        * For BUS interface IO
-       */  
+       */
       struct
       {
          uint8_t  (*_read_byte)  (uint32_t AddrSel);
          void     (*_write_byte) (uint32_t AddrSel, uint8_t wb);
-      }BUS;      
+      }BUS;
       /**
        * For SPI interface IO
        */
@@ -210,13 +210,13 @@ typedef enum
    CW_CLR_INTERRUPT,   ///< Clears interrupt
    CW_SET_INTRMASK,    ///< Masks interrupt
    CW_GET_INTRMASK,    ///< Get interrupt mask
-   CW_SET_INTRTIME,    ///< Set interval time between the current and next interrupt. 
-   CW_GET_INTRTIME,    ///< Set interval time between the current and next interrupt. 
+   CW_SET_INTRTIME,    ///< Set interval time between the current and next interrupt.
+   CW_GET_INTRTIME,    ///< Set interval time between the current and next interrupt.
    CW_GET_ID,          ///< Gets WIZCHIP name.
 
 #if _WIZCHIP_ ==  5500
    CW_RESET_PHY,       ///< Resets internal PHY. Valid Only W5000
-   CW_SET_PHYCONF,     ///< When PHY configured by interal register, PHY operation mode (Manual/Auto, 10/100, Half/Full). Valid Only W5000 
+   CW_SET_PHYCONF,     ///< When PHY configured by interal register, PHY operation mode (Manual/Auto, 10/100, Half/Full). Valid Only W5000
    CW_GET_PHYCONF,     ///< Get PHY operation mode in interal register. Valid Only W5000
    CW_GET_PHYSTATUS,   ///< Get real PHY status on operating. Valid Only W5000
    CW_SET_PHYPOWMODE,  ///< Set PHY power mode as noraml and down when PHYSTATUS.OPMD == 1. Valid Only W5000
@@ -249,13 +249,13 @@ typedef enum
 {
 #if _WIZCHIP_ > 5200
    IK_WOL               = (1 << 4),   ///< Wake On Lan by receiving the magic packet. Valid in W500.
-#endif   
+#endif
 
    IK_PPPOE_TERMINATED  = (1 << 5),   ///< PPPoE Disconnected
 
 #if _WIZCHIP_ != 5200
    IK_DEST_UNREACH      = (1 << 6),   ///< Destination IP & Port Unreable, No use in W5200
-#endif   
+#endif
 
    IK_IP_CONFLICT       = (1 << 7),   ///< IP conflict occurred
 
@@ -263,22 +263,22 @@ typedef enum
    IK_SOCK_1            = (1 << 9),   ///< Socket 1 interrupt
    IK_SOCK_2            = (1 << 10),  ///< Socket 2 interrupt
    IK_SOCK_3            = (1 << 11),  ///< Socket 3 interrupt
-#if _WIZCHIP_ > 5100   
+#if _WIZCHIP_ > 5100
    IK_SOCK_4            = (1 << 12),  ///< Socket 4 interrupt, No use in 5100
    IK_SOCK_5            = (1 << 13),  ///< Socket 5 interrupt, No use in 5100
    IK_SOCK_6            = (1 << 14),  ///< Socket 6 interrupt, No use in 5100
    IK_SOCK_7            = (1 << 15),  ///< Socket 7 interrupt, No use in 5100
-#endif   
+#endif
 
 #if _WIZCHIP_ > 5100
    IK_SOCK_ALL          = (0xFF << 8) ///< All Socket interrpt
 #else
-   IK_SOCK_ALL          = (0x0F << 8) ///< All Socket interrpt 
-#endif      
+   IK_SOCK_ALL          = (0x0F << 8) ///< All Socket interrpt
+#endif
 }intr_kind;
 
 #define PHY_CONFBY_HW            0     ///< Configured PHY operation mode by HW pin
-#define PHY_CONFBY_SW            1     ///< Configured PHY operation mode by SW register   
+#define PHY_CONFBY_SW            1     ///< Configured PHY operation mode by SW register
 #define PHY_MODE_MANUAL          0     ///< Configured PHY operation mode with user setting.
 #define PHY_MODE_AUTONEGO        1     ///< Configured PHY operation mode with auto-negotiation
 #define PHY_SPEED_10             0     ///< Link Speed 10
@@ -288,13 +288,13 @@ typedef enum
 #define PHY_LINK_OFF             0     ///< Link Off
 #define PHY_LINK_ON              1     ///< Link On
 #define PHY_POWER_NORM           0     ///< PHY power normal mode
-#define PHY_POWER_DOWN           1     ///< PHY power down mode 
+#define PHY_POWER_DOWN           1     ///< PHY power down mode
 
 
-#if _WIZCHIP_ == 5500 
+#if _WIZCHIP_ == 5500
 /**
  * @ingroup DATA_TYPE
- *  It configures PHY configuration when CW_SET PHYCONF or CW_GET_PHYCONF in W5500,  
+ *  It configures PHY configuration when CW_SET PHYCONF or CW_GET_PHYCONF in W5500,
  *  and it indicates the real PHY status configured by HW or SW in all WIZCHIP. \n
  *  Valid only in W5500.
  */
@@ -303,11 +303,11 @@ typedef struct wiz_PhyConf_t
       uint8_t by;       ///< set by @ref PHY_CONFBY_HW or @ref PHY_CONFBY_SW
       uint8_t mode;     ///< set by @ref PHY_MODE_MANUAL or @ref PHY_MODE_AUTONEGO
       uint8_t speed;    ///< set by @ref PHY_SPEED_10 or @ref PHY_SPEED_100
-      uint8_t duplex;   ///< set by @ref PHY_DUPLEX_HALF @ref PHY_DUPLEX_FULL 
+      uint8_t duplex;   ///< set by @ref PHY_DUPLEX_HALF @ref PHY_DUPLEX_FULL
       //uint8_t power;  ///< set by @ref PHY_POWER_NORM or @ref PHY_POWER_DOWN
-      //uint8_t link;   ///< Valid only in CW_GET_PHYSTATUS. set by @ref PHY_LINK_ON or PHY_DUPLEX_OFF 
+      //uint8_t link;   ///< Valid only in CW_GET_PHYSTATUS. set by @ref PHY_LINK_ON or PHY_DUPLEX_OFF
    }wiz_PhyConf;
-#endif   
+#endif
 
 /**
  * @ingroup DATA_TYPE
@@ -327,7 +327,7 @@ typedef struct wiz_NetInfo_t
 {
    uint8_t mac[6];  ///< Source Mac Address
    uint8_t ip[4];   ///< Source IP Address
-   uint8_t sn[4];   ///< Subnet Mask 
+   uint8_t sn[4];   ///< Subnet Mask
    uint8_t gw[4];   ///< Gateway IP Address
    uint8_t dns[4];  ///< DNS server IP Address
    dhcp_mode dhcp;  ///< 1 - Static, 2 - DHCP
@@ -339,10 +339,10 @@ typedef struct wiz_NetInfo_t
  */
 typedef enum
 {
-#if _WIZCHIP_ == 5500   
+#if _WIZCHIP_ == 5500
    NM_FORCEARP    = (1<<1),  ///< Force to APP send whenever udp data is sent. Valid only in W5500
-#endif   
-   NM_WAKEONLAN   = (1<<5),  ///< Wake On Lan 
+#endif
+   NM_WAKEONLAN   = (1<<5),  ///< Wake On Lan
    NM_PINGBLOCK   = (1<<4),  ///< Block ping-request
    NM_PPPOE       = (1<<3),  ///< PPPoE mode
 }netmode_type;
@@ -353,7 +353,7 @@ typedef enum
  */
 typedef struct wiz_NetTimeout_t
 {
-   uint8_t  retry_cnt;     ///< retry count 
+   uint8_t  retry_cnt;     ///< retry count
    uint16_t time_100us;    ///< time unit 100us
 }wiz_NetTimeout;
 
@@ -389,8 +389,8 @@ void reg_wizchip_bus_cbfunc(uint8_t (*bus_rb)(uint32_t addr), void (*bus_wb)(uin
 
 /**
  *@brief Registers call back function for SPI interface.
- *@param spi_rb : callback function to read byte usig SPI 
- *@param spi_wb : callback function to write byte usig SPI 
+ *@param spi_rb : callback function to read byte usig SPI
+ *@param spi_wb : callback function to write byte usig SPI
  *@todo Describe \ref wizchip_spi_readbyte and \ref wizchip_spi_writebyte function
  *or register your functions.
  *@note If you do not describe or register, null function is called.
@@ -405,8 +405,8 @@ void reg_wizchip_spi_cbfunc(void (*spi_rb)(uint8_t *, uint32_t), void (*spi_wb)(
  * @param cwtype : Decides to the control type
  * @param arg : arg type is dependent on cwtype.
  * @return  0 : Success \n
- *         -1 : Fail because of invalid \ref ctlwizchip_type or unsupported \ref ctlwizchip_type in WIZCHIP 
- */          
+ *         -1 : Fail because of invalid \ref ctlwizchip_type or unsupported \ref ctlwizchip_type in WIZCHIP
+ */
 int8_t ctlwizchip(ctlwizchip_type cwtype, void* arg);
 
 /**
@@ -416,20 +416,20 @@ int8_t ctlwizchip(ctlwizchip_type cwtype, void* arg);
  * @param cntype : Input. Decides to the control type
  * @param arg : Inout. arg type is dependent on cntype.
  * @return -1 : Fail because of invalid \ref ctlnetwork_type or unsupported \ref ctlnetwork_type in WIZCHIP \n
- *          0 : Success      
- */          
+ *          0 : Success
+ */
 int8_t ctlnetwork(ctlnetwork_type cntype, void* arg);
 
 
-/* 
- * The following functions are implemented for internal use. 
+/*
+ * The following functions are implemented for internal use.
  * but You can call these functions for code size reduction instead of ctlwizchip() and ctlnetwork().
  */
- 
+
 /**
  * @ingroup extra_functions
  * @brief Reset WIZCHIP by softly.
- */ 
+ */
 void   wizchip_sw_reset(void);
 
 /**
@@ -442,28 +442,28 @@ void   wizchip_sw_reset(void);
  */
 int8_t wizchip_init(uint8_t* txsize, uint8_t* rxsize);
 
-/** 
+/**
  * @ingroup extra_functions
  * @brief Clear Interrupt of WIZCHIP.
  * @param intr : @ref intr_kind value operated OR. It can type-cast to uint16_t.
  */
 void wizchip_clrinterrupt(intr_kind intr);
 
-/** 
+/**
  * @ingroup extra_functions
  * @brief Get Interrupt of WIZCHIP.
  * @return @ref intr_kind value operated OR. It can type-cast to uint16_t.
  */
 intr_kind wizchip_getinterrupt(void);
 
-/** 
+/**
  * @ingroup extra_functions
  * @brief Mask or Unmask Interrupt of WIZCHIP.
  * @param intr : @ref intr_kind value operated OR. It can type-cast to uint16_t.
  */
 void wizchip_setinterruptmask(intr_kind intr);
 
-/** 
+/**
  * @ingroup extra_functions
  * @brief Get Interrupt mask of WIZCHIP.
  * @return : The operated OR vaule of @ref intr_kind. It can type-cast to uint16_t.
@@ -482,25 +482,25 @@ intr_kind wizchip_getinterruptmask(void);
  * @brief Set the phy information for WIZCHIP without power mode
  * @param phyconf : @ref wiz_PhyConf
  */
-   void   wizphy_setphyconf(wiz_PhyConf* phyconf);  
+   void   wizphy_setphyconf(wiz_PhyConf* phyconf);
  /**
  * @ingroup extra_functions
  * @brief Get phy configuration information.
  * @param phyconf : @ref wiz_PhyConf
  */
-   void   wizphy_getphyconf(wiz_PhyConf* phyconf); 
+   void   wizphy_getphyconf(wiz_PhyConf* phyconf);
  /**
  * @ingroup extra_functions
  * @brief Get phy status.
  * @param phyconf : @ref wiz_PhyConf
- */ 
+ */
    void   wizphy_getphystat(wiz_PhyConf* phyconf);
  /**
  * @ingroup extra_functions
  * @brief set the power mode of phy inside WIZCHIP. Refer to @ref PHYCFGR in W5500, @ref PHYSTATUS in W5200
  * @param pmode Settig value of power down mode.
- */   
-   int8_t wizphy_setphypmode(uint8_t pmode);    
+ */
+   int8_t wizphy_setphypmode(uint8_t pmode);
 #endif
 
 /**
@@ -523,14 +523,14 @@ uint8_t *wizchip_getsubn(void);
 
 /**
  * @ingroup extra_functions
- * @brief Set the network mode such WOL, PPPoE, Ping Block, and etc. 
+ * @brief Set the network mode such WOL, PPPoE, Ping Block, and etc.
  * @param pnetinfo Value of network mode. Refer to @ref netmode_type.
  */
 int8_t wizchip_setnetmode(netmode_type netmode);
 
 /**
  * @ingroup extra_functions
- * @brief Get the network mode such WOL, PPPoE, Ping Block, and etc. 
+ * @brief Get the network mode such WOL, PPPoE, Ping Block, and etc.
  * @return Value of network mode. Refer to @ref netmode_type.
  */
 netmode_type wizchip_getnetmode(void);
@@ -538,16 +538,16 @@ netmode_type wizchip_getnetmode(void);
 /**
  * @ingroup extra_functions
  * @brief Set retry time value(@ref RTR) and retry count(@ref RCR).
- * @details @ref RTR configures the retransmission timeout period and @ref RCR configures the number of time of retransmission.  
- * @param nettime @ref RTR value and @ref RCR value. Refer to @ref wiz_NetTimeout. 
+ * @details @ref RTR configures the retransmission timeout period and @ref RCR configures the number of time of retransmission.
+ * @param nettime @ref RTR value and @ref RCR value. Refer to @ref wiz_NetTimeout.
  */
 void wizchip_settimeout(wiz_NetTimeout* nettime);
 
 /**
  * @ingroup extra_functions
  * @brief Get retry time value(@ref RTR) and retry count(@ref RCR).
- * @details @ref RTR configures the retransmission timeout period and @ref RCR configures the number of time of retransmission.  
- * @param nettime @ref RTR value and @ref RCR value. Refer to @ref wiz_NetTimeout. 
+ * @details @ref RTR configures the retransmission timeout period and @ref RCR configures the number of time of retransmission.
+ * @param nettime @ref RTR value and @ref RCR value. Refer to @ref wiz_NetTimeout.
  */
 void wizchip_gettimeout(wiz_NetTimeout* nettime);
 
diff --git a/drivers/wiznet5k/internet/dhcp/dhcp.h b/drivers/wiznet5k/internet/dhcp/dhcp.h
index 881bf5a6c..618a91498 100644
--- a/drivers/wiznet5k/internet/dhcp/dhcp.h
+++ b/drivers/wiznet5k/internet/dhcp/dhcp.h
@@ -15,30 +15,30 @@
 //!
 //! Copyright (c)  2013, WIZnet Co., LTD.
 //! All rights reserved.
-//! 
-//! Redistribution and use in source and binary forms, with or without 
-//! modification, are permitted provided that the following conditions 
-//! are met: 
-//! 
-//!     * Redistributions of source code must retain the above copyright 
-//! notice, this list of conditions and the following disclaimer. 
+//!
+//! Redistribution and use in source and binary forms, with or without
+//! modification, are permitted provided that the following conditions
+//! are met:
+//!
+//!     * Redistributions of source code must retain the above copyright
+//! notice, this list of conditions and the following disclaimer.
 //!     * Redistributions in binary form must reproduce the above copyright
 //! notice, this list of conditions and the following disclaimer in the
-//! documentation and/or other materials provided with the distribution. 
-//!     * Neither the name of the <ORGANIZATION> nor the names of its 
-//! contributors may be used to endorse or promote products derived 
-//! from this software without specific prior written permission. 
-//! 
+//! documentation and/or other materials provided with the distribution.
+//!     * Neither the name of the <ORGANIZATION> nor the names of its
+//! contributors may be used to endorse or promote products derived
+//! from this software without specific prior written permission.
+//!
 //! THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
-//! AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 
+//! AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
 //! IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
-//! ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE 
-//! LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 
-//! CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 
+//! ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
+//! LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+//! CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
 //! SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
-//! INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 
-//! CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 
-//! ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF 
+//! INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+//! CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+//! ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
 //! THE POSSIBILITY OF SUCH DAMAGE.
 //
 //*****************************************************************************
@@ -46,7 +46,7 @@
 #define _DHCP_H_
 
 /*
- * @brief 
+ * @brief
  * @details If you want to display debug & processing message, Define _DHCP_DEBUG_
  * @note    If defined, it depends on <stdio.h>
  */
@@ -65,7 +65,7 @@
 
 #define DCHP_HOST_NAME           "WIZnet\0"
 
-/* 
+/*
  * @brief return value of @ref DHCP_run()
  */
 enum
@@ -74,7 +74,7 @@ enum
    DHCP_RUNNING,     ///< Processing DHCP protocol
    DHCP_IP_ASSIGN,   ///< First Occupy IP from DHPC server      (if cbfunc == null, act as default default_ip_assign)
    DHCP_IP_CHANGED,  ///< Change IP address by new IP address from DHCP (if cbfunc == null, act as default default_ip_update)
-   DHCP_IP_LEASED,   ///< Stand by 
+   DHCP_IP_LEASED,   ///< Stand by
    DHCP_STOPPED      ///< Stop processing DHCP protocol
 };
 
@@ -89,12 +89,12 @@ void DHCP_init(uint8_t s, DHCP_INIT_BUFFER_TYPE* buf);
 
 /*
  * @brief DHCP 1s Tick Timer handler
- * @note SHOULD BE register to your system 1s Tick timer handler 
+ * @note SHOULD BE register to your system 1s Tick timer handler
  */
 void DHCP_time_handler(void);
 
-/* 
- * @brief Register call back function 
+/*
+ * @brief Register call back function
  * @param ip_assign   - callback func when IP is assigned from DHCP server first
  * @param ip_update   - callback func when IP is changed
  * @prarm ip_conflict - callback func when the assigned IP is conflict with others.
@@ -112,13 +112,13 @@ void reg_dhcp_cbfunc(void(*ip_assign)(void), void(*ip_update)(void), void(*ip_co
  *            @ref DHCP_STOPPED    \n
  *
  * @note This function is always called by you main task.
- */ 
+ */
 uint8_t DHCP_run(void);
 
 /*
  * @brief Stop DHCP processing
  * @note If you want to restart. call DHCP_init() and DHCP_run()
- */ 
+ */
 void    DHCP_stop(void);
 
 /* Get Network information assigned from DHCP server */
diff --git a/drivers/wiznet5k/internet/dns/dns.c b/drivers/wiznet5k/internet/dns/dns.c
index 8b9e96670..aa3a73809 100644
--- a/drivers/wiznet5k/internet/dns/dns.c
+++ b/drivers/wiznet5k/internet/dns/dns.c
@@ -22,30 +22,30 @@
 //!
 //! Copyright (c)  2013, WIZnet Co., LTD.
 //! All rights reserved.
-//! 
-//! Redistribution and use in source and binary forms, with or without 
-//! modification, are permitted provided that the following conditions 
-//! are met: 
-//! 
-//!     * Redistributions of source code must retain the above copyright 
-//! notice, this list of conditions and the following disclaimer. 
+//!
+//! Redistribution and use in source and binary forms, with or without
+//! modification, are permitted provided that the following conditions
+//! are met:
+//!
+//!     * Redistributions of source code must retain the above copyright
+//! notice, this list of conditions and the following disclaimer.
 //!     * Redistributions in binary form must reproduce the above copyright
 //! notice, this list of conditions and the following disclaimer in the
-//! documentation and/or other materials provided with the distribution. 
-//!     * Neither the name of the <ORGANIZATION> nor the names of its 
-//! contributors may be used to endorse or promote products derived 
-//! from this software without specific prior written permission. 
-//! 
+//! documentation and/or other materials provided with the distribution.
+//!     * Neither the name of the <ORGANIZATION> nor the names of its
+//! contributors may be used to endorse or promote products derived
+//! from this software without specific prior written permission.
+//!
 //! THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
-//! AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 
+//! AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
 //! IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
-//! ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE 
-//! LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 
-//! CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 
+//! ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
+//! LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+//! CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
 //! SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
-//! INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 
-//! CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 
-//! ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF 
+//! INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+//! CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+//! ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
 //! THE POSSIBILITY OF SUCH DAMAGE.
 //
 //*****************************************************************************
@@ -338,7 +338,7 @@ uint8_t * dns_answer(uint8_t * msg, uint8_t * cp, uint8_t * ip_from_dns)
  *               len  - is the size of reply message.
  * Returns     : -1 - Domain name length is too big
  *                0 - Fail (Timeout or parse error)
- *                1 - Success, 
+ *                1 - Success,
  */
 int8_t parseDNSMSG(struct dhdr * pdhdr, uint8_t * pbuf, uint8_t * ip_from_dns)
 {
@@ -525,7 +525,7 @@ int8_t DNS_run(uint8_t * dns_ip, uint8_t * name, uint8_t * ip_from_dns)
 	int8_t ret_check_timeout;
 
         hal_sys_tick = HAL_GetTick();
-   
+
    // Socket open
    WIZCHIP_EXPORT(socket)(DNS_SOCKET, Sn_MR_UDP, 0, 0);
 
diff --git a/drivers/wiznet5k/internet/dns/dns.h b/drivers/wiznet5k/internet/dns/dns.h
index de0039515..574b632a6 100644
--- a/drivers/wiznet5k/internet/dns/dns.h
+++ b/drivers/wiznet5k/internet/dns/dns.h
@@ -2,7 +2,7 @@
 //
 //! \file dns.h
 //! \brief DNS APIs Header file.
-//! \details Send DNS query & Receive DNS reponse. 
+//! \details Send DNS query & Receive DNS reponse.
 //! \version 1.1.0
 //! \date 2013/11/18
 //! \par  Revision history
@@ -20,30 +20,30 @@
 //!
 //! Copyright (c)  2013, WIZnet Co., LTD.
 //! All rights reserved.
-//! 
-//! Redistribution and use in source and binary forms, with or without 
-//! modification, are permitted provided that the following conditions 
-//! are met: 
-//! 
-//!     * Redistributions of source code must retain the above copyright 
-//! notice, this list of conditions and the following disclaimer. 
+//!
+//! Redistribution and use in source and binary forms, with or without
+//! modification, are permitted provided that the following conditions
+//! are met:
+//!
+//!     * Redistributions of source code must retain the above copyright
+//! notice, this list of conditions and the following disclaimer.
 //!     * Redistributions in binary form must reproduce the above copyright
 //! notice, this list of conditions and the following disclaimer in the
-//! documentation and/or other materials provided with the distribution. 
-//!     * Neither the name of the <ORGANIZATION> nor the names of its 
-//! contributors may be used to endorse or promote products derived 
-//! from this software without specific prior written permission. 
-//! 
+//! documentation and/or other materials provided with the distribution.
+//!     * Neither the name of the <ORGANIZATION> nor the names of its
+//! contributors may be used to endorse or promote products derived
+//! from this software without specific prior written permission.
+//!
 //! THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
-//! AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 
+//! AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
 //! IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
-//! ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE 
-//! LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 
-//! CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 
+//! ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
+//! LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+//! CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
 //! SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
-//! INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 
-//! CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 
-//! ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF 
+//! INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+//! CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+//! ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
 //! THE POSSIBILITY OF SUCH DAMAGE.
 //
 //*****************************************************************************