1 files changed, 4 insertions, 0 deletions

diff --git a/sound/pci/hda/hda_beep.h b/sound/pci/hda/hda_beep.h
index 0c3de787c717..68465f679d8c 100644
--- a/sound/pci/hda/hda_beep.h
+++ b/sound/pci/hda/hda_beep.h
@@ -32,11 +32,15 @@ struct hda_beep {
         int tone;
         hda_nid_t nid;
         unsigned int enabled:1;
+        unsigned int request_enable:1;
         unsigned int linear_tone:1;     /* linear tone for IDT/STAC codec */
+        struct work_struct register_work; /* scheduled task for beep event */
         struct work_struct beep_work; /* scheduled task for beep event */
+        struct mutex mutex;
 };
 
 #ifdef CONFIG_SND_HDA_INPUT_BEEP
+int snd_hda_enable_beep_device(struct hda_codec *codec, int enable);
 int snd_hda_attach_beep_device(struct hda_codec *codec, int nid);
 void snd_hda_detach_beep_device(struct hda_codec *codec);
 #else