EPICS support for device to monitor Digital I/O

[P B via Tech-talk <tech-talk at aps.anl.gov>]

Hello, 

I am relatively new to EPICS. I am trying to look for an option to monitor a single TTL signal on a Linux PC running EPICS. 

Using something like a DAQ is overkill. Ideally, I am thinking of something like the FT232H chip. Is there support for something equivalent to this? Or any suggestions on a quick and easy way to achieve this within EPICS? 

Thanks. 

Pra