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modbus_rtu_get_rts(3)
=====================
NAME
----
modbus_rtu_get_rts - get the current RTS mode in RTU
SYNOPSIS
--------
*int modbus_rtu_get_rts(modbus_t *'ctx');*
DESCRIPTION
-----------
The *modbus_rtu_get_rts()* function shall get the current Request To Send mode
of the libmodbus context _ctx_. The possible returned values are:
* MODBUS_RTU_RTS_NONE
* MODBUS_RTU_RTS_UP
* MODBUS_RTU_RTS_DOWN
This function can only be used with a context using a RTU backend.
RETURN VALUE
------------
The function shall return the current RTS mode if successful. Otherwise it shall
return -1 and set errno.
ERRORS
------
*EINVAL*::
The libmodbus backend is not RTU.
SEE ALSO
--------
linkmb:modbus_rtu_set_rts[3]
AUTHORS
-------
The libmodbus documentation was written by Stéphane Raimbault
<stephane.raimbault@gmail.com>
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