From: Markus Lidel <Markus.Lidel@shadowconnect.com>

- remove the multiplexer notification and replace it with a type-safe
  function for each event (controller add/remove, device add/remove).
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>