modbus_rtu_get_rts_delay
Name
modbus_rtu_get_rts_delay - get the current RTS delay in RTU
Synopsis
Description
The modbus_rtu_get_rts_delay()
function shall get the current Request To Send
delay period of the libmodbus context 'ctx'.
This function can only be used with a context using a RTU backend.
Return value
The modbus_rtu_get_rts_delay()
function shall return the current RTS delay in
microseconds if successful. Otherwise it shall return -1 and set errno.
Errors
- EINVAL, the libmodbus backend is not RTU.