snd_hdspm_hwdep_dummy_op 4216 sound/pci/rme9652/hdspm.c hw->ops.open = snd_hdspm_hwdep_dummy_op; snd_hdspm_hwdep_dummy_op 4218 sound/pci/rme9652/hdspm.c hw->ops.release = snd_hdspm_hwdep_dummy_op;