Tvheadend

HI Guys
Trying to get my head round this great piece of software.
I tried for an hour to load it into Unraid but it needed device name which i could not find out what to put in there.
So i hade to remove it from the template to get it to load.
Obviously, it has no device to connect to so i need to know the exact name or format on what to put in
Here is my docker template please can somebody tell me the correct name to put in for my device which is a Telestar Digibit R1?
I think i need to add in a new line when i know what to add --device=/dev/dvb \

Also does the rest of the template look ok?