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-rw-r--r--sound/usb/mixer.h4
1 files changed, 4 insertions, 0 deletions
diff --git a/sound/usb/mixer.h b/sound/usb/mixer.h
index 394cd9107507..37e1b234c802 100644
--- a/sound/usb/mixer.h
+++ b/sound/usb/mixer.h
@@ -28,6 +28,10 @@ struct usb_mixer_interface {
struct media_mixer_ctl *media_mixer_ctl;
bool disconnected;
+
+ void *private_data;
+ void (*private_free)(struct usb_mixer_interface *mixer);
+ void (*private_suspend)(struct usb_mixer_interface *mixer);
};
#define MAX_CHANNELS 16 /* max logical channels */