On Sun, May 17, 2020 at 11:56:10PM +0200, Heiko Stuebner wrote: > From: Giulio Benetti <giulio.benetti@xxxxxxxxxxxxxxxx> > > Need to use rs485 transceiver so let's use existing em485 485 emulation > layer on top of 8250. > > Add rs485_config callback to port and uses the standard em485 start and > stop helpers. Would it prevent to use native RS485 support? ... > p->serial_out = dw8250_serial_out; > p->set_ldisc = dw8250_set_ldisc; > p->set_termios = dw8250_set_termios; > + p->rs485_config = serial8250_em485_config; > + up->rs485_start_tx = serial8250_em485_start_tx; > + up->rs485_stop_tx = serial8250_em485_stop_tx; -- With Best Regards, Andy Shevchenko