MODBUS_REPLY man page on DragonFly

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MODBUS_REPLY(3)		       Libmodbus Manual		       MODBUS_REPLY(3)

NAME
       modbus_reply - send a reponse to the received request

SYNOPSIS
       *int modbus_reply(modbus_t *ctx, const uint8_t *req, int req_length,
       modbus_mapping_t *mb_mapping);

DESCRIPTION
       The modbus_reply() function shall send a response to received request.
       The request req given in argument is analyzed, a response is then built
       and sent by using the information of the modbus context ctx.

       If the request indicates to read or write a value the operation will
       done in the modbus mapping mb_mapping according to the type of the
       manipulated data.

       If an error occurs, an exception response will be sent.

       This function is designed for Modbus server.

RETURN VALUE
       The modbus_reply() function shall return the length of the response
       sent if successful. Otherwise it shall return -1 and set errno.

ERRORS
       EMBMDATA
	   Sending has failed

       See also the errors returned by the syscall used to send the response
       (eg. send or write).

SEE ALSO
       modbus_reply_exception(3) libmodbus(7)

AUTHORS
       The libmodbus documentation was written by Stéphane Raimbault
       <stephane.raimbault@gmail.com[1]>

NOTES
	1. stephane.raimbault@gmail.com
	   mailto:stephane.raimbault@gmail.com

libmodbus 3.1.0			  10/06/2013		       MODBUS_REPLY(3)
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