Peter M. Groen / libmodbus

/*
 * Copyright © 2001-2010 Stéphane Raimbault <stephane.raimbault@gmail.com>
 *
 * This program is free software: you can redistribute it and/or modify
 * it under the terms of the GNU Lesser Public License as published by
 * the Free Software Foundation; either version 3 of the License, or
 * (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU Lesser Public License for more details.
 *
 * You should have received a copy of the GNU Lesser Public License
 * along with this program.  If not, see <http://www.gnu.org/licenses/>.
 */

#ifndef _MODBUS_TCP_PRIVATE_H_
#define _MODBUS_TCP_PRIVATE_H_

#define _MODBUS_TCP_HEADER_LENGTH      7
#define _MODBUS_TCP_PRESET_REQ_LENGTH 12
#define _MODBUS_TCP_PRESET_RSP_LENGTH  8

#define _MODBUS_TCP_CHECKSUM_LENGTH    0

typedef struct _modbus_tcp {
    /* TCP port */
    int port;
    /* IP address */
    char ip[16];
} modbus_tcp_t;

#endif /* _MODBUS_TCP_PRIVATE_H_ */