-extern void snd_gf1_timers_init(snd_gus_card_t * gus);
-extern void snd_gf1_timers_done(snd_gus_card_t * gus);
-extern int snd_gf1_synth_init(snd_gus_card_t * gus);
-extern void snd_gf1_synth_done(snd_gus_card_t * gus);
+extern void snd_gf1_timers_init(struct snd_gus_card * gus);
+extern void snd_gf1_timers_done(struct snd_gus_card * gus);
+extern int snd_gf1_synth_init(struct snd_gus_card * gus);
+extern void snd_gf1_synth_done(struct snd_gus_card * gus);