-static seq_oss_midi_t *get_mdev(int dev);
-static seq_oss_midi_t *get_mididev(seq_oss_devinfo_t *dp, int dev);
-static int send_synth_event(seq_oss_devinfo_t *dp, snd_seq_event_t *ev, int dev);
-static int send_midi_event(seq_oss_devinfo_t *dp, snd_seq_event_t *ev, seq_oss_midi_t *mdev);
+static struct seq_oss_midi *get_mdev(int dev);
+static struct seq_oss_midi *get_mididev(struct seq_oss_devinfo *dp, int dev);
+static int send_synth_event(struct seq_oss_devinfo *dp, struct snd_seq_event *ev, int dev);
+static int send_midi_event(struct seq_oss_devinfo *dp, struct snd_seq_event *ev, struct seq_oss_midi *mdev);