-extern int snd_seq_register_kernel_client(snd_seq_client_callback_t *callback, void *private_data);
-extern int snd_seq_unregister_kernel_client(int client);
-extern int snd_seq_kernel_client_enqueue(int client, snd_seq_event_t *ev, int atomic, int hop);
-int snd_seq_kernel_client_enqueue_blocking(int client, snd_seq_event_t * ev, struct file *file, int atomic, int hop);
+int snd_seq_kernel_client_enqueue(int client, struct snd_seq_event *ev, int atomic, int hop);
+int snd_seq_kernel_client_enqueue_blocking(int client, struct snd_seq_event * ev,
+ struct file *file, int atomic, int hop);