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diff --git a/msm8909/audiod/AudioDaemon.h b/msm8909/audiod/AudioDaemon.h
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+/* AudioDaemon.h
+
+Copyright (c) 2012-2014, The Linux Foundation. All rights reserved.
+
+Redistribution and use in source and binary forms, with or without
+modification, are permitted provided that the following conditions are
+met:
+    * Redistributions of source code must retain the above copyright
+      notice, this list of conditions and the following disclaimer.
+    * Redistributions in binary form must reproduce the above
+      copyright notice, this list of conditions and the following
+      disclaimer in the documentation and/or other materials provided
+      with the distribution.
+    * Neither the name of The Linux Foundation nor the names of its
+      contributors may be used to endorse or promote products derived
+      from this software without specific prior written permission.
+
+THIS SOFTWARE IS PROVIDED "AS IS" AND ANY EXPRESS OR IMPLIED
+WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
+MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT
+ARE DISCLAIMED.  IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS
+BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR
+BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
+WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE
+OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN
+IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.*/
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <unistd.h>
+#include <string.h>
+#include <fcntl.h>
+#include <vector>
+
+#include <utils/threads.h>
+#include <utils/String8.h>
+
+
+namespace android {
+
+enum notify_status {
+    snd_card_online,
+    snd_card_offline,
+    cpe_online,
+    cpe_offline
+};
+
+enum notify_status_type {
+    SND_CARD_STATE,
+    CPE_STATE
+};
+
+enum audio_event_status {audio_event_on, audio_event_off};
+
+#define AUDIO_PARAMETER_KEY_EXT_AUDIO_DEVICE "ext_audio_device"
+
+class AudioDaemon:public Thread, public IBinder :: DeathRecipient
+{
+    /*Overrides*/
+    virtual bool        threadLoop();
+    virtual status_t    readyToRun();
+    virtual void        onFirstRef();
+    virtual void        binderDied(const wp < IBinder > &who);
+
+    bool processUeventMessage();
+    void notifyAudioSystem(int snd_card,
+                           notify_status status,
+                           notify_status_type type);
+    void notifyAudioSystemEventStatus(const char* event, audio_event_status status);
+    int mUeventSock;
+    bool getStateFDs(std::vector<std::pair<int,int> > &sndcardFdPair);
+    void putStateFDs(std::vector<std::pair<int,int> > &sndcardFdPair);
+    bool getDeviceEventFDs();
+    void putDeviceEventFDs();
+    void checkEventState(int fd, int index);
+
+public:
+    AudioDaemon();
+    virtual ~AudioDaemon();
+
+private:
+    std::vector<std::pair<int,int> > mSndCardFd;
+
+    //file descriptors for audio device events and their statuses
+    std::vector<std::pair<String8, int> > mAudioEvents;
+    std::vector<std::pair<String8, int> > mAudioEventsStatus;
+
+};
+
+}