Merge branch 'jdgl-140206'

    Note by Federico Vaga <federico.vaga@cern.ch>
        This is not exactly the same set of patches from
        garcialasheras <javier@garcialasheras.com>. I did few modification
        in order to:

        - do not introduce new dependecies. Vendor and Device ID are constant
          for life, so we can safely write them two times and avoid a file
          dependencies between kernel and userspace code.

        - squash FIX patches in 1d8bb157. There were consecutive patches where
          the FIX patch just fix the previous patch, so squash them. This will
          produce an useful git-blame and bit-bisect

        - una patch for each behavioral modification