That's an interesting question. If they're pellets that would fit through the augers, I'm sure it would work mechanically. But the question is whether using combusting corn would give you a good and/or safe food product. I have no idea, but if I were thinking about doing this, I would research very carefully whether it would be safe or not. I'm told that burning conifers in a smoker is a bad idea due to toxins/residue from burning conifers is dangerous for food, and doesn't taste good anyway. You could run into that issue.
And even if it's safe, I'm curious what taste that would give the food. My guess is that it wouldn't taste good, but that's a pure guess.
I'm interested to hear what other people have to say on this.