BKTR_SLEEP
tsleep_nsec( BKTR_SLEEP, PZERO, "tuning", MSEC_TO_NSEC(125) );
status = tsleep_nsec(BKTR_SLEEP, BKTRPRI, "captur", INFSLP);
error = tsleep_nsec(BKTR_SLEEP, BKTRPRI, "captur",
wakeup(BKTR_SLEEP);
tsleep_nsec( BKTR_SLEEP, PZERO, "tuning", MSEC_TO_NSEC(1000 / 8) );