Instead of implementing softintr handling add our notification
functions directly.

--- a/dev/audio.c
+++ b/dev/audio.c
@@ -572,6 +572,8 @@ audio_pintr(void *addr)
 		 */
 		softintr_schedule(sc->play.softintr);
 	}
+
+	notify_play();
 }
 
 /*
@@ -655,6 +657,8 @@ audio_rintr(void *addr)
 		 */
 		softintr_schedule(sc->rec.softintr);
 	}
+
+	notify_record();
 }
 
 int