1 files changed, 2 insertions, 0 deletions

diff --git a/sound/usb/mixer.h b/sound/usb/mixer.h
index 130123854a6c..a7cf1007fbb0 100644
--- a/sound/usb/mixer.h
+++ b/sound/usb/mixer.h
@@ -34,6 +34,8 @@ struct usb_mixer_elem_info {
         unsigned int id;
         unsigned int control;   /* CS or ICN (high byte) */
         unsigned int cmask; /* channel mask bitmap: 0 = master */
+        unsigned int ch_readonly;
+        unsigned int master_readonly;
         int channels;
         int val_type;
         int min, max, res;