TOPO_PGROUP_TRANSCEIVER
if (topo_prop_set_string(tn, TOPO_PGROUP_TRANSCEIVER,
TOPO_PGROUP_TRANSCEIVER,
"%s\n", TOPO_PGROUP_TRANSCEIVER, topo_strerror(err));
if (topo_prop_set_string(tn, TOPO_PGROUP_TRANSCEIVER,