SNDSTAT_PID
if (SNDSTAT_PID(i_dev) == curproc->p_pid) {
} else if (SNDSTAT_PID(i_dev) != 0) {
if (SNDSTAT_PID(i_dev) == 0) {
if (SNDSTAT_PID(i_dev) != buf->uio_td->td_proc->p_pid ||
if (SNDSTAT_PID(sndstat_dev) != 0) {
if (SNDSTAT_PID(sndstat_dev) != -1) {
if (SNDSTAT_PID(sndstat_dev) != td->td_proc->p_pid) {
if (SNDSTAT_PID(sndstat_dev) != curthread->td_proc->p_pid) {
val = (int)SNDSTAT_PID(sndstat_dev);