DEVICE_TYPE_TMDS_DVI_SIGNALING
is_dvi = child->device_type & DEVICE_TYPE_TMDS_DVI_SIGNALING;
(child->device_type & (DEVICE_TYPE_TMDS_DVI_SIGNALING |
DEVICE_TYPE_TMDS_DVI_SIGNALING | \
DEVICE_TYPE_TMDS_DVI_SIGNALING | \