Suspending, resuming, adding or deleting a driver

Every active device must have a device driver bound to it.

• If you are removing or replacing a controller, you must suspend its driver instance before turning power off to its slot. See ``Suspending a driver instance''.

• After replacing a controller with an identical new controller (or one that is supported by the same device driver) you can resume a suspended driver instance onto the new controller. See ``Resuming a driver instance''.

• If you are adding a new controller for which there is no suspended driver instance, you must add a new device driver. See ``Adding a new driver''.

• If a suspended driver instance is no longer needed you should delete it. See ``Deleting a driver''.