Standalone 8255 support

modulename: 8255.ko

configname: CONFIG_COMEDI_8255_SA

Linux Kernel Configuration
└─>Device Drivers
└─>Data acquisition support (comedi)
└─>Standalone 8255 support
In linux kernel since version 3.10 (release Date: 2013-06-30)  
Enable support for 8255 digital I/O as a standalone driver.

You should enable compilation this driver if you plan to use a board
that has an 8255 chip at a known I/O base address and there are no
other Comedi drivers for the board.

Note that Comedi drivers for most multi-function boards incorporating
an 8255 chip use the 'comedi_8255' module. Most PCI-based 8255
boards use the 8255_pci driver as a wrapper around the 'comedi_8255'
module.

To compile this driver as a module, choose M here: the module will be
called 8255.

source code: