hdspm_pref_sync_ref
int psf = hdspm_pref_sync_ref(hdspm);
if (val != hdspm_pref_sync_ref(hdspm))
switch (hdspm_pref_sync_ref(hdspm)) {
pref_syncref = hdspm_pref_sync_ref(hdspm);
info.pref_sync_ref = hdspm_pref_sync_ref(hdspm);