Support for Fintek F81216A LPC to 4 UART RS485 API

configname: CONFIG_SERIAL_8250_FINTEK

Linux Kernel Configuration
└─>Device Drivers
└─>Character devices
└─>Serial drivers
└─>Support for Fintek F81216A LPC to 4 UART RS485 API
In linux kernel since version 3.10 (release Date: 2013-06-30)  
Selecting this option will add support for the RS485 capabilities
of the Fintek F81216A LPC to 4 UART.

If this option is not selected the device will be configured as a
standard 16550A serial port.

If unsure, say N.