default or selected kernelversion does not have config value CONFIG_DGAP.
Result is shown for kernelversion 6.5.1
Digi EPCA PCI products
modulename: dgap.ko
configname: CONFIG_DGAP
Linux Kernel Configuration
└─>Device Drivers
└─>Staging drivers
└─>Digi EPCA PCI products
In linux kernel since version 3.12 (release Date: 2013-11-03)
Driver for the Digi International EPCA PCI based product line