On Mon, 10 Mar 2014, Alexander Shiyan wrote: > Понедельник, 10 марта 2014, 2:26 -04:00 от jon@xxxxxxxxxx: > > From: Jon Ringle <jringle@xxxxxxxxxxxxx> > ... > > +config SERIAL_SC16IS7XX > > + tristate "SC16IS7xx RS485 serial support" > > + select SERIAL_CORE > > + default n > > + help > > + This selects support for SC16IS7xx for use as a RS485 serial port > > Documentation says: > The SC16IS740/750/760 is a slave I²C-bus/SPI interface to a single-channel > high performance UART. > ... > The SC16IS740/750/760 also provides additional advanced features such > as auto hardware and software flow control, automatic RS-485 support... > > So why do you position this chip as RS485 only? Automatic direction for > RS485 is just a feature as an addition for standart UART. You're right. This is just how we are using the chip in our board. Would a configuration flag in platform_data make sense to use the auto rs485 direction? Any thoughts as to the latency issue I report? Thanks. Regards, Jon
