Enable generic 8255 support.

You should enable compilation this driver if you plan to use a board
that has an 8255 chip. For multifunction boards, the main driver will
configure the 8255 subdevice automatically.

Note that most PCI based 8255 boards use the 8255_pci driver as a
wrapper around this driver.

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

source code:

drivers/staging/comedi/drivers/8255.c