if (ow_interval > 0)
cb_interval.tv_sec = (time_t) ow_interval;
- plugin_register_complex_read ("onewire", cow_read,
+ plugin_register_complex_read (/* group = */ NULL, "onewire", cow_read,
&cb_interval, /* user data = */ NULL);
plugin_register_shutdown ("onewire", cow_shutdown);