Hi Clemens, On Mon, Feb 20, 2017 at 10:07 AM, Clemens Gruber <clemens.gruber@xxxxxxxxxxxx> wrote: the > Then, setting SER_RS485_RTS_ON_SEND and clearing > SER_RS485_RTS_AFTER_SEND would lead to: > CTS_B being logic low during send > CTS_B being logic high before and after send > > So, if you want CTS_B to be driven high during send, you'd have to clear > SER_RS485_RTS_ON_SEND and set SER_RS485_RTS_AFTER_SEND. In this case we break userspace applications that follow the API as described in Documentation/serial/serial-rs485.txt: /* Set logical level for RTS pin equal to 1 when sending: */ rs485conf.flags |= SER_RS485_RTS_ON_SEND; -- To unsubscribe from this list: send the line "unsubscribe linux-serial" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
