diff --git a/camera/ndk/impl/ACameraManager.cpp b/camera/ndk/impl/ACameraManager.cpp
index 7a0f63b..4870265 100644
--- a/camera/ndk/impl/ACameraManager.cpp
+++ b/camera/ndk/impl/ACameraManager.cpp
@@ -32,6 +32,7 @@
 namespace acam {
 // Static member definitions
 const char* CameraManagerGlobal::kCameraIdKey   = "CameraId";
+const char* CameraManagerGlobal::kPhysicalCameraIdKey   = "PhysicalCameraId";
 const char* CameraManagerGlobal::kCallbackFpKey = "CallbackFp";
 const char* CameraManagerGlobal::kContextKey    = "CallbackContext";
 Mutex                CameraManagerGlobal::sLock;
@@ -220,7 +221,7 @@
     if (pair.second) {
         for (auto& pair : mDeviceStatusMap) {
             const String8& cameraId = pair.first;
-            int32_t status = pair.second.status;
+            int32_t status = pair.second.getStatus();
             // Don't send initial callbacks for camera ids which don't support
             // camera2
             if (!pair.second.supportsHAL3) {
@@ -264,9 +265,9 @@
     // Needed to make sure we're connected to cameraservice
     getCameraServiceLocked();
     for(auto& deviceStatus : mDeviceStatusMap) {
-        if (deviceStatus.second.status == hardware::ICameraServiceListener::STATUS_NOT_PRESENT ||
-                deviceStatus.second.status ==
-                        hardware::ICameraServiceListener::STATUS_ENUMERATING) {
+        int32_t status = deviceStatus.second.getStatus();
+        if (status == hardware::ICameraServiceListener::STATUS_NOT_PRESENT ||
+                status == hardware::ICameraServiceListener::STATUS_ENUMERATING) {
             continue;
         }
         if (!deviceStatus.second.supportsHAL3) {
@@ -341,6 +342,39 @@
             (*cb)(context);
             break;
         }
+        case kWhatSendSinglePhysicalCameraCallback:
+        {
+            ACameraManager_PhysicalCameraAvailabilityCallback cb;
+            void* context;
+            AString cameraId;
+            AString physicalCameraId;
+            bool found = msg->findPointer(kCallbackFpKey, (void**) &cb);
+            if (!found) {
+                ALOGE("%s: Cannot find camera callback fp!", __FUNCTION__);
+                return;
+            }
+            if (cb == nullptr) {
+                // Physical camera callback is null
+                return;
+            }
+            found = msg->findPointer(kContextKey, &context);
+            if (!found) {
+                ALOGE("%s: Cannot find callback context!", __FUNCTION__);
+                return;
+            }
+            found = msg->findString(kCameraIdKey, &cameraId);
+            if (!found) {
+                ALOGE("%s: Cannot find camera ID!", __FUNCTION__);
+                return;
+            }
+            found = msg->findString(kPhysicalCameraIdKey, &physicalCameraId);
+            if (!found) {
+                ALOGE("%s: Cannot find physical camera ID!", __FUNCTION__);
+                return;
+            }
+            (*cb)(context, cameraId.c_str(), physicalCameraId.c_str());
+            break;
+        }
         default:
             ALOGE("%s: unknown message type %d", __FUNCTION__, msg->what());
             break;
@@ -368,6 +402,17 @@
     return binder::Status::ok();
 }
 
+binder::Status CameraManagerGlobal::CameraServiceListener::onPhysicalCameraStatusChanged(
+        int32_t status, const String16& cameraId, const String16& physicalCameraId) {
+    sp<CameraManagerGlobal> cm = mCameraManager.promote();
+    if (cm != nullptr) {
+        cm->onStatusChanged(status, String8(cameraId), String8(physicalCameraId));
+    } else {
+        ALOGE("Cannot deliver physical camera status change. Global camera manager died");
+    }
+    return binder::Status::ok();
+}
+
 void CameraManagerGlobal::onCameraAccessPrioritiesChanged() {
     Mutex::Autolock _l(mLock);
     for (auto cb : mCallbacks) {
@@ -397,7 +442,7 @@
     bool firstStatus = (mDeviceStatusMap.count(cameraId) == 0);
     int32_t oldStatus = firstStatus ?
             status : // first status
-            mDeviceStatusMap[cameraId].status;
+            mDeviceStatusMap[cameraId].getStatus();
 
     if (!firstStatus &&
             isStatusAvailable(status) == isStatusAvailable(oldStatus)) {
@@ -406,8 +451,14 @@
     }
 
     bool supportsHAL3 = supportsCamera2ApiLocked(cameraId);
+    if (firstStatus) {
+        mDeviceStatusMap.emplace(std::piecewise_construct,
+                std::forward_as_tuple(cameraId),
+                std::forward_as_tuple(status, supportsHAL3));
+    } else {
+        mDeviceStatusMap[cameraId].updateStatus(status);
+    }
     // Iterate through all registered callbacks
-    mDeviceStatusMap[cameraId] = StatusAndHAL3Support(status, supportsHAL3);
     if (supportsHAL3) {
         for (auto cb : mCallbacks) {
             sp<AMessage> msg = new AMessage(kWhatSendSingleCallback, mHandler);
@@ -424,6 +475,81 @@
     }
 }
 
+void CameraManagerGlobal::onStatusChanged(
+        int32_t status, const String8& cameraId, const String8& physicalCameraId) {
+    Mutex::Autolock _l(mLock);
+    onStatusChangedLocked(status, cameraId, physicalCameraId);
+}
+
+void CameraManagerGlobal::onStatusChangedLocked(
+        int32_t status, const String8& cameraId, const String8& physicalCameraId) {
+    if (!validStatus(status)) {
+        ALOGE("%s: Invalid status %d", __FUNCTION__, status);
+        return;
+    }
+
+    auto logicalStatus = mDeviceStatusMap.find(cameraId);
+    if (logicalStatus == mDeviceStatusMap.end()) {
+        ALOGE("%s: Physical camera id %s status change on a non-present id %s",
+                __FUNCTION__, physicalCameraId.c_str(), cameraId.c_str());
+        return;
+    }
+    int32_t logicalCamStatus = mDeviceStatusMap[cameraId].getStatus();
+    if (logicalCamStatus != hardware::ICameraServiceListener::STATUS_PRESENT &&
+            logicalCamStatus != hardware::ICameraServiceListener::STATUS_NOT_AVAILABLE) {
+        ALOGE("%s: Physical camera id %s status %d change for an invalid logical camera state %d",
+                __FUNCTION__, physicalCameraId.string(), status, logicalCamStatus);
+        return;
+    }
+
+    bool supportsHAL3 = supportsCamera2ApiLocked(cameraId);
+
+    bool updated = false;
+    if (status == hardware::ICameraServiceListener::STATUS_PRESENT) {
+        updated = mDeviceStatusMap[cameraId].removeUnavailablePhysicalId(physicalCameraId);
+    } else {
+        updated = mDeviceStatusMap[cameraId].addUnavailablePhysicalId(physicalCameraId);
+    }
+
+    // Iterate through all registered callbacks
+    if (supportsHAL3 && updated) {
+        for (auto cb : mCallbacks) {
+            sp<AMessage> msg = new AMessage(kWhatSendSinglePhysicalCameraCallback, mHandler);
+            ACameraManager_PhysicalCameraAvailabilityCallback cbFp = isStatusAvailable(status) ?
+                    cb.mPhysicalCamAvailable : cb.mPhysicalCamUnavailable;
+            msg->setPointer(kCallbackFpKey, (void *) cbFp);
+            msg->setPointer(kContextKey, cb.mContext);
+            msg->setString(kCameraIdKey, AString(cameraId));
+            msg->setString(kPhysicalCameraIdKey, AString(physicalCameraId));
+            msg->post();
+        }
+    }
+}
+
+int32_t CameraManagerGlobal::StatusAndHAL3Support::getStatus() {
+    std::lock_guard<std::mutex> lock(mLock);
+    return status;
+}
+
+void CameraManagerGlobal::StatusAndHAL3Support::updateStatus(int32_t newStatus) {
+    std::lock_guard<std::mutex> lock(mLock);
+    status = newStatus;
+}
+
+bool CameraManagerGlobal::StatusAndHAL3Support::addUnavailablePhysicalId(
+        const String8& physicalCameraId) {
+    std::lock_guard<std::mutex> lock(mLock);
+    auto result = unavailablePhysicalIds.insert(physicalCameraId);
+    return result.second;
+}
+
+bool CameraManagerGlobal::StatusAndHAL3Support::removeUnavailablePhysicalId(
+        const String8& physicalCameraId) {
+    std::lock_guard<std::mutex> lock(mLock);
+    auto count = unavailablePhysicalIds.erase(physicalCameraId);
+    return count > 0;
+}
+
 } // namespace acam
 } // namespace android
 
diff --git a/camera/ndk/impl/ACameraManager.h b/camera/ndk/impl/ACameraManager.h
index e945ba0..98cd934 100644
--- a/camera/ndk/impl/ACameraManager.h
+++ b/camera/ndk/impl/ACameraManager.h
@@ -85,6 +85,8 @@
       public:
         explicit CameraServiceListener(CameraManagerGlobal* cm) : mCameraManager(cm) {}
         virtual binder::Status onStatusChanged(int32_t status, const String16& cameraId);
+        virtual binder::Status onPhysicalCameraStatusChanged(int32_t status,
+                const String16& cameraId, const String16& physicalCameraId);
 
         // Torch API not implemented yet
         virtual binder::Status onTorchStatusChanged(int32_t, const String16&) {
@@ -104,18 +106,24 @@
             mAvailable(callback->onCameraAvailable),
             mUnavailable(callback->onCameraUnavailable),
             mAccessPriorityChanged(nullptr),
+            mPhysicalCamAvailable(nullptr),
+            mPhysicalCamUnavailable(nullptr),
             mContext(callback->context) {}
 
         explicit Callback(const ACameraManager_ExtendedAvailabilityCallbacks *callback) :
             mAvailable(callback->availabilityCallbacks.onCameraAvailable),
             mUnavailable(callback->availabilityCallbacks.onCameraUnavailable),
             mAccessPriorityChanged(callback->onCameraAccessPrioritiesChanged),
+            mPhysicalCamAvailable(callback->onPhysicalCameraAvailable),
+            mPhysicalCamUnavailable(callback->onPhysicalCameraUnavailable),
             mContext(callback->availabilityCallbacks.context) {}
 
         bool operator == (const Callback& other) const {
             return (mAvailable == other.mAvailable &&
                     mUnavailable == other.mUnavailable &&
                     mAccessPriorityChanged == other.mAccessPriorityChanged &&
+                    mPhysicalCamAvailable == other.mPhysicalCamAvailable &&
+                    mPhysicalCamUnavailable == other.mPhysicalCamUnavailable &&
                     mContext == other.mContext);
         }
         bool operator != (const Callback& other) const {
@@ -124,6 +132,12 @@
         bool operator < (const Callback& other) const {
             if (*this == other) return false;
             if (mContext != other.mContext) return mContext < other.mContext;
+            if (mPhysicalCamAvailable != other.mPhysicalCamAvailable) {
+                return mPhysicalCamAvailable < other.mPhysicalCamAvailable;
+            }
+            if (mPhysicalCamUnavailable != other.mPhysicalCamUnavailable) {
+                return mPhysicalCamUnavailable < other.mPhysicalCamUnavailable;
+            }
             if (mAccessPriorityChanged != other.mAccessPriorityChanged) {
                 return mAccessPriorityChanged < other.mAccessPriorityChanged;
             }
@@ -136,6 +150,8 @@
         ACameraManager_AvailabilityCallback mAvailable;
         ACameraManager_AvailabilityCallback mUnavailable;
         ACameraManager_AccessPrioritiesChangedCallback mAccessPriorityChanged;
+        ACameraManager_PhysicalCameraAvailabilityCallback mPhysicalCamAvailable;
+        ACameraManager_PhysicalCameraAvailabilityCallback mPhysicalCamUnavailable;
         void*                               mContext;
     };
     std::set<Callback> mCallbacks;
@@ -144,8 +160,10 @@
     enum {
         kWhatSendSingleCallback,
         kWhatSendSingleAccessCallback,
+        kWhatSendSinglePhysicalCameraCallback,
     };
     static const char* kCameraIdKey;
+    static const char* kPhysicalCameraIdKey;
     static const char* kCallbackFpKey;
     static const char* kContextKey;
     class CallbackHandler : public AHandler {
@@ -160,6 +178,9 @@
     void onCameraAccessPrioritiesChanged();
     void onStatusChanged(int32_t status, const String8& cameraId);
     void onStatusChangedLocked(int32_t status, const String8& cameraId);
+    void onStatusChanged(int32_t status, const String8& cameraId, const String8& physicalCameraId);
+    void onStatusChangedLocked(int32_t status, const String8& cameraId,
+           const String8& physicalCameraId);
     // Utils for status
     static bool validStatus(int32_t status);
     static bool isStatusAvailable(int32_t status);
@@ -187,11 +208,20 @@
     };
 
     struct StatusAndHAL3Support {
+      private:
         int32_t status = hardware::ICameraServiceListener::STATUS_NOT_PRESENT;
-        bool supportsHAL3 = false;
+        mutable std::mutex mLock;
+        std::set<String8> unavailablePhysicalIds;
+      public:
+        const bool supportsHAL3 = false;
         StatusAndHAL3Support(int32_t st, bool HAL3support):
                 status(st), supportsHAL3(HAL3support) { };
         StatusAndHAL3Support() = default;
+
+        bool addUnavailablePhysicalId(const String8& physicalCameraId);
+        bool removeUnavailablePhysicalId(const String8& physicalCameraId);
+        int32_t getStatus();
+        void updateStatus(int32_t newStatus);
     };
 
     // Map camera_id -> status