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-rw-r--r--include/sound/pcm.h1
1 files changed, 1 insertions, 0 deletions
diff --git a/include/sound/pcm.h b/include/sound/pcm.h
index 5a22075c5fcf..24febf9e177c 100644
--- a/include/sound/pcm.h
+++ b/include/sound/pcm.h
@@ -218,6 +218,7 @@ struct snd_pcm_ops {
struct snd_pcm_file {
struct snd_pcm_substream *substream;
int no_compat_mmap;
+ unsigned int user_pversion; /* supported protocol version */
};
struct snd_pcm_hw_rule;