The Faust integration with Daisy Patch is on the TODO list of the Faust developers.
-patch : to compile for 4 ins/outs Patch (TODO)
The functionality for Daisy Pod is implemented:
https://github.com/grame-cncm/faust/blob/master-dev/architecture/daisy/ex_faust.cpp
The functionality for Daisy Patch needs completion:
https://github.com/grame-cncm/faust/blob/master-dev/architecture/daisy/ex_faust_patch.cpp
Following file also need updates:
https://github.com/grame-cncm/faust/blob/master-dev/architecture/faust/gui/DaisyControlUI.h
Unfortunately I can’t figure it out 
Maybe someone else with the necessary skills is interested ?