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-rw-r--r--audio/audio_int.h3
1 files changed, 3 insertions, 0 deletions
diff --git a/audio/audio_int.h b/audio/audio_int.h
index 599d3b0614..db7fd1a7d3 100644
--- a/audio/audio_int.h
+++ b/audio/audio_int.h
@@ -55,6 +55,9 @@ typedef struct HWVoice {
struct pcm_ops *pcm_ops;
} HWVoice;
+extern struct pcm_ops no_pcm_ops;
+extern struct audio_output_driver no_output_driver;
+
extern struct pcm_ops oss_pcm_ops;
extern struct audio_output_driver oss_output_driver;