The problem I'm having is that the field index is always returned as 0
when reading struct hiddev_usage_ref and I need something to
distinguish the input data as the usage code is the same.  I looked
through hid-core.c and hiddev.c and hiddev_hid_event is the only place
I could see field->index being used.  It wasn't being initialized
causing the input to always be returned as zero.
Signed-off-by: David Fries <dfries@mail.win.org>
Signed-off-by: Greg Kroah-Hartman <greg@kroah.com>