SNDSTAT_PID_SET
SNDSTAT_PID_SET(sndstat_dev, 0);
SNDSTAT_PID_SET(i_dev, curproc->p_pid);
SNDSTAT_PID_SET(i_dev, 0);
SNDSTAT_PID_SET(i_dev, 0);
SNDSTAT_PID_SET(sndstat_dev, -1);
SNDSTAT_PID_SET(sndstat_dev, td->td_proc->p_pid);
SNDSTAT_PID_SET(sndstat_dev, 0);