PICLEVENTARG_HINT
if (nvlist_add_string(nvl, PICLEVENTARG_HINT, ""))
if (nvlist_add_string(nvl, PICLEVENTARG_HINT,
if (nvlist_lookup_string(nvlp, PICLEVENTARG_HINT, &hint)) {
if (nvlist_lookup_string(nvlp, PICLEVENTARG_HINT, &hint)) {
if (nvlist_lookup_string(nvlp, PICLEVENTARG_HINT, &hint)) {