Question [Q] Exposing droid4 drivers to linux

I have a curiosity that I'm trying to justify if it's worth attempting but don't know where to start. My desired outcome is to turn my Moto Droid 4 into a full out linux machine with one catch, making phone calls.

I already know that I can root and install a flavor of linux side by side with android, but I'm hoping to replace android with linux and my own software.

I wondering if the drivers for the phone's radio and other devices(camera, led, etc) exposable which I then could write my software to use in linux.

I'm pretty sure it's not feasible as it's all most likely proprietary drivers made by motorola, but on the off chance that it wasn't I figured someone here would know.