x, (unsigned long) rme9652->period_bytes);
        snd_iprintf(buffer, "Hardware pointer (frames): %ld\n",
                    rme9652_hw_pointer(rme9652));
-       snd_iprintf(buffer, "Passthru: %s\n",
-                   rme9652->passthru ? "yes" : "no");
+       snd_iprintf(buffer, "Passthru: %s\n", str_yes_no(rme9652->passthru));
 
        if ((rme9652->control_register & (RME9652_Master | RME9652_wsel)) == 0) {
                snd_iprintf(buffer, "Clock mode: autosync\n");
        snd_iprintf(buffer, "\n");
 
        snd_iprintf(buffer, "Timecode signal: %s\n",
-                   (status & RME9652_tc_valid) ? "yes" : "no");
+                   str_yes_no(status & RME9652_tc_valid));
 
        /* thru modes */