-int snd_mixart_send_msg(mixart_mgr_t *mgr, mixart_msg_t *request, int max_resp_size, void *resp_data);
-int snd_mixart_send_msg_wait_notif(mixart_mgr_t *mgr, mixart_msg_t *request, u32 notif_event);
-int snd_mixart_send_msg_nonblock(mixart_mgr_t *mgr, mixart_msg_t *request);
+int snd_mixart_send_msg(struct mixart_mgr *mgr, struct mixart_msg *request, int max_resp_size, void *resp_data);
+int snd_mixart_send_msg_wait_notif(struct mixart_mgr *mgr, struct mixart_msg *request, u32 notif_event);
+int snd_mixart_send_msg_nonblock(struct mixart_mgr *mgr, struct mixart_msg *request);