1 files changed, 2 insertions, 0 deletions

diff --git a/include/sound/pcm.h b/include/sound/pcm.h
index 28fd9f95f9ba..45c1981c9ca2 100644
--- a/include/sound/pcm.h
+++ b/include/sound/pcm.h
@@ -71,6 +71,8 @@ struct snd_pcm_ops {
         int (*prepare)(struct snd_pcm_substream *substream);
         int (*trigger)(struct snd_pcm_substream *substream, int cmd);
         snd_pcm_uframes_t (*pointer)(struct snd_pcm_substream *substream);
+        int (*wall_clock)(struct snd_pcm_substream *substream,
+                          struct timespec *audio_ts);
         int (*copy)(struct snd_pcm_substream *substream, int channel,
                     snd_pcm_uframes_t pos,
                     void __user *buf, snd_pcm_uframes_t count);