On Mon, 10 Mar 2014 07:50:12 -0400 (EDT) Jon Ringle <j...@ringle.org> wrote:
> > On Mon, 10 Mar 2014, Alexander Shiyan wrote: > > > Понедельник, 10 марта 2014, 2:26 -04:00 от j...@ringle.org: > > > From: Jon Ringle <jrin...@gridpoint.com> > > ... > > > +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? We have interfaces for RS485 runtime configuration so it could be extended to set a lot of parameters that way, but I think for now it might not be a bad idea to support rs485 auto direction in/out/off in the platform data. Alan -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
