Move the struct comedi_driver to the end of the source. Convert
the driver to use the module_comedi_driver() macro which makes
the code smaller and a bit simpler.
Signed-off-by: H Hartley Sweeten <hsweeten@visionengravers.com> Cc: Ian Abbott <abbotti@mev.co.uk> Cc: Mori Hess <fmhess@users.sourceforge.net> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>