CONFIG_COMEDI_8254 (not configurable)

modulename: comedi_8254.ko

configname: CONFIG_COMEDI_8254

Linux Kernel Configuration
└─>Device Drivers
└─>Data acquisition support (comedi)
└─>COMEDI_8254
In linux kernel since version 3.10 (release Date: 2013-06-30)  
source code:
drivers/comedi/drivers/comedi_8254.c