Hello, 2016-02-18 19:50 GMT+03:00 Peter Hurley <pe...@hurleysoftware.com>: > No, that's not the way. > > First, there's plenty of driver hooks to properly manage the RTS level > for rs485.
For now I'm considering to add the check to uart_dtr_rts in serial_core.c. However, given the access to struct tty_port_operations, I think it's also possible to use a driver-specific hook if it makes more sense. The question is - where exactly does it belong? > Second, how are you running GPIO rts with the omap8250 driver? Through hooking set_mctrl and get_mctrl and using the suggested helpers from serial_mctrl_gpio.c. Though I had to introduce uart_port.get_mctrl to serial_core.h (with set_mctrl already being there) and serial8250_do_get_mctrl to serial_8250.h (same here, serial8250_do_set_mctrl is already there). Regards, Ilyas G.
