rebase to subs

firmware/stepper-drop/src/main.cpp

@@ -108,6 +108,7 @@ void setup() {
   homeSetup(&homeStateEp);
   // links... 
   vpUSBSer.begin();
+  vb_ucBusDrop_setup(&vb_ucBusDrop, true, 0);
   // stepper init 
   stepper_hw->init(false, 0.0F);
 }

osape_ucbus @ ef4a8fe3

-Subproject commit 994f7626eecf15d7db38949b309e2551411abe0d
+Subproject commit ef4a8fe33c71eedbe7b76ef7c9cc5a9de3017852