CAM_DEV_IN_DV
&& (path->device->flags & CAM_DEV_IN_DV) == 0) {
path->device->flags |= CAM_DEV_IN_DV;
~(CAM_DEV_IN_DV|CAM_DEV_DV_HIT_BOTTOM);
path->device->flags &= ~CAM_DEV_IN_DV;
~(CAM_DEV_IN_DV|CAM_DEV_DV_HIT_BOTTOM);