serial: Add support for Fintek F81216A LPC to 4 UART
This patch lets you set the RS485 cappabilites of the device through TIOCSRS485 and TIOCGRS485 as defined on Documentation/serial/serial-rs485.txt In order to probe the device, the PNP id and the device id is used. Signed-off-by: Ricardo Ribalda Delgado <ricardo.ribalda@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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