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.\"     Title: modbus_rtu_get_rts_delay
.\"    Author: [see the "AUTHORS" section]
.\" Generator: DocBook XSL Stylesheets v1.79.1 <http://docbook.sf.net/>
.\"      Date: 02/28/2020
.\"    Manual: libmodbus Manual
.\"    Source: libmodbus v3.1.6
.\"  Language: English
.\"
.TH "MODBUS_RTU_GET_RTS_D" "3" "02/28/2020" "libmodbus v3\&.1\&.6" "libmodbus Manual"
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.SH "NAME"
modbus_rtu_get_rts_delay \- get the current RTS delay in RTU
.SH "SYNOPSIS"
.sp
\fBint modbus_rtu_get_rts_delay(modbus_t *\fR\fB\fIctx\fR\fR\fB);\fR
.SH "DESCRIPTION"
.sp
The \fImodbus_rtu_get_rts_delay()\fR function shall get the current Request To Send delay period of the libmodbus context \fIctx\fR\&.
.sp
This function can only be used with a context using a RTU backend\&.
.SH "RETURN VALUE"
.sp
The \fImodbus_rtu_get_rts_delay()\fR function shall return the current RTS delay in microseconds if successful\&. Otherwise it shall return \-1 and set errno\&.
.SH "ERRORS"
.PP
\fBEINVAL\fR
.RS 4
The libmodbus backend is not RTU\&.
.RE
.SH "SEE ALSO"
.sp
\fBmodbus_rtu_set_rts_delay\fR(3)
.SH "AUTHORS"
.sp
Jimmy Bergström <jimmy@ekontroll\&.com>
.sp
The libmodbus documentation was written by Stéphane Raimbault <stephane\&.raimbault@gmail\&.com>