2 questions about Spdif and the tone one generic

how do I make this work, it doesnt seem to work for input or for output on a raspberry pi 4 using picoreplayerbut tried with volumio and moode.

if this isn’t possible can I use a digi2 pro (hifiberry) as a spdif out for the khadas tone one?

how would I go about doing this?

thanks for the help