Check firmware state when loading module & if firmware is not responding exit
with an error. When module is unloaded, only disable the framebuffer & not all
decoder output.
Signed-off-by: NIan Armstrong <ian@iarmst.demon.co.uk>
Signed-off-by: NAndy Walls <awalls@md.metrocast.net>
Signed-off-by: NMauro Carvalho Chehab <mchehab@redhat.com>