I received a DigiRig Lite today. What a great little device! It works fine with Fldigi. Someone else posted about setting the permissions in a udev rule for Linux so the GPIO PTT will work. That procedure applies no matter what Linux you’re using or what app you are using with the DigiRig Lite.
Here are the settings I used in Windows for the DigiRig Lite. Note I changed the name of the card to CM108. You’ll need to adjust the playback and record levels for your situation.
And here are the Fldigi settings for the sound card and PTT:
-Steve