Acorn expansion card serial port support

modulename: 8250_acorn.ko

configname: CONFIG_SERIAL_8250_ACORN

Linux Kernel Configuration
└─>Device Drivers
└─>Character devices
└─>Serial drivers
└─>Acorn expansion card serial port support
In linux kernel since version 2.6.20 (release Date: 2007-02-04)  
If you have an Atomwide Serial card or Serial Port card for an Acorn
system, say Y to this option. The driver can handle 1, 2, or 3 port
cards. If unsure, say N.

source code: