Add my Hotplug driver code. All previous commits are squashed into this version.

Change-Id: I604ceb0853f1c6444422325f11e01f4297c5a2a9
Signed-off-by: franciscofranco <franciscofranco.1990@gmail.com> (reverted from commit 231e9785339d227a0f91c1e19a88148e54c5db05)