FM_FMRI_MOD_ID
e |= nvlist_add_int32(out, FM_FMRI_MOD_ID, id);
err = nvlist_lookup_int32(nvl, FM_FMRI_MOD_ID, &modid);
topo_fmristr_build(&size, buf, buflen, numbuf, FM_FMRI_MOD_ID "=",