rtkparms
rtkparms_t rtkparms;
rtkparms.rt_pri = newpri;
rtkparms.rt_tqntm = RT_NOCHANGE;
rtkparms.rt_tqsig = 0;
rtkparms.rt_cflags = RT_DOPRI;
return (rt_parmsset(t, &rtkparms, rt_cid, cr));