> Add a NORDY port flag to suppress raising the modem-control lines on > open to signal DTE readiness. > > This can be used to implement a NORDY termios control flag to complement > HUPCL, which controls lowering of the modem-control lines on final > close. > > Initially drivers can export the flag through sysfs, which also allows > control over the lines on first open. > > This can be use to prevent undesirable side-effects on open for > applications where the DTR and RTS lines are used for non-standard > purposes such as generating power-on and reset pulses. > > Signed-off-by: Johan Hovold <johan@xxxxxxxxxx> Reviewed-by: Mychaela N. Falconia <falcon@xxxxxxxxxxxxxxx>
