Introduce d_version field in struct cdevsw, this must always be initialized to D_VERSION. Flip sense of D_NOGIANT flag to D_NEEDGIANT, this involves removing four D_NOGIANT flags and adding 145 D_NEEDGIANT flags.
Also some minor style cleanups.
expects one to use. Only the functions used by XFree86 are actually implemented. Glanced at by: tmm