diff --git a/include/sound/info.h b/include/sound/info.h
index fecbb1f..8ae72e7 100644
--- a/include/sound/info.h
+++ b/include/sound/info.h
@@ -100,8 +100,10 @@
 extern struct snd_info_entry *snd_seq_root;
 #ifdef CONFIG_SND_OSSEMUL
 extern struct snd_info_entry *snd_oss_root;
+void snd_card_info_read_oss(struct snd_info_buffer *buffer);
 #else
 #define snd_oss_root NULL
+static inline void snd_card_info_read_oss(struct snd_info_buffer *buffer) {}
 #endif
 
 int snd_iprintf(struct snd_info_buffer * buffer, char *fmt,...) __attribute__ ((format (printf, 2, 3)));