diff --git a/src/linux/backend-v4l2.h b/src/linux/backend-v4l2.h
index bc24df144e..034e3ace4e 100644
--- a/src/linux/backend-v4l2.h
+++ b/src/linux/backend-v4l2.h
@@ -355,6 +355,7 @@ namespace librealsense
             void set_power_state(power_state state) override;
             power_state get_power_state() const override { return _state; }
 
+            void register_xu( platform::extension_unit && xu ) override {}
             void init_xu(const extension_unit&) override {}
             bool set_xu(const extension_unit& xu, uint8_t control, const uint8_t* data, int size) override;
             bool get_xu(const extension_unit& xu, uint8_t control, uint8_t* data, int size) const override;
diff --git a/src/mf/mf-uvc.cpp b/src/mf/mf-uvc.cpp
index 305cfab412..6e985c462e 100644
--- a/src/mf/mf-uvc.cpp
+++ b/src/mf/mf-uvc.cpp
@@ -885,6 +885,9 @@ namespace librealsense
             CHECK_HR(MFCreateSourceReaderFromMediaSource(_source, _reader_attrs, &_reader));
             CHECK_HR(_reader->SetStreamSelection(static_cast<DWORD>(MF_SOURCE_READER_ALL_STREAMS), TRUE));
             _power_state = D0;
+
+            for( auto && xu : _xus )
+                init_xu( xu );
         }
 
         void wmf_uvc_device::set_d3()
diff --git a/src/mf/mf-uvc.h b/src/mf/mf-uvc.h
index 1ae61ab5a0..d2025c74ee 100644
--- a/src/mf/mf-uvc.h
+++ b/src/mf/mf-uvc.h
@@ -79,6 +79,7 @@ namespace librealsense
             static bool is_connected(const uvc_device_info& info);
             static void foreach_uvc_device(enumeration_callback action);
 
+            void register_xu( platform::extension_unit && xu ) override { _xus.push_back( std::move( xu ) ); }
             void init_xu(const extension_unit& xu) override;
             bool set_xu(const extension_unit& xu, uint8_t ctrl, const uint8_t* data, int len) override;
             bool get_xu(const extension_unit& xu, uint8_t ctrl, uint8_t* data, int len) const override;
@@ -146,6 +147,7 @@ namespace librealsense
             bool                                    _streaming = false;
             std::atomic<bool>                       _is_started = false;
             std::wstring                            _device_id;
+            std::vector< platform::extension_unit > _xus;
         };
 
         class source_reader_callback : public IMFSourceReaderCallback
diff --git a/src/platform/uvc-device.h b/src/platform/uvc-device.h
index b6267990f0..5b21ea042b 100644
--- a/src/platform/uvc-device.h
+++ b/src/platform/uvc-device.h
@@ -128,6 +128,7 @@ class uvc_device
     virtual void set_power_state( power_state state ) = 0;
     virtual power_state get_power_state() const = 0;
 
+    virtual void register_xu( platform::extension_unit && xu ) = 0;
     virtual void init_xu( const extension_unit & xu ) = 0;
     virtual bool set_xu( const extension_unit & xu, uint8_t ctrl, const uint8_t * data, int len ) = 0;
     virtual bool get_xu( const extension_unit & xu, uint8_t ctrl, uint8_t * data, int len ) const = 0;
@@ -183,6 +184,8 @@ class retry_controls_work_around : public uvc_device
 
     power_state get_power_state() const override { return _dev->get_power_state(); }
 
+    void register_xu( platform::extension_unit && xu ) override { _dev->register_xu( std::move( xu ) ); }
+
     void init_xu( const extension_unit & xu ) override { _dev->init_xu( xu ); }
 
     bool set_xu( const extension_unit & xu, uint8_t ctrl, const uint8_t * data, int len ) override
@@ -313,6 +316,8 @@ class multi_pins_uvc_device : public uvc_device
 
     power_state get_power_state() const override { return _dev.front()->get_power_state(); }
 
+    void register_xu( platform::extension_unit && xu ) override { _dev.front()->register_xu( std::move( xu ) ); }
+
     void init_xu( const extension_unit & xu ) override { _dev.front()->init_xu( xu ); }
 
     bool set_xu( const extension_unit & xu, uint8_t ctrl, const uint8_t * data, int len ) override
diff --git a/src/uvc-sensor.cpp b/src/uvc-sensor.cpp
index fab565af0f..c617c165ca 100644
--- a/src/uvc-sensor.cpp
+++ b/src/uvc-sensor.cpp
@@ -372,7 +372,7 @@ void uvc_sensor::finished_bulk_operation()
 
 void uvc_sensor::register_xu( platform::extension_unit xu )
 {
-    _xus.push_back( std::move( xu ) );
+    _device->register_xu( std::move( xu ) );
 }
 
 
@@ -419,8 +419,6 @@ void uvc_sensor::acquire_power()
         try
         {
             _device->set_power_state( platform::D0 );
-            for( auto && xu : _xus )
-                _device->init_xu( xu );
         }
         catch( std::exception const & e )
         {
diff --git a/src/uvc-sensor.h b/src/uvc-sensor.h
index f2370d56b0..ffc63dc3b7 100644
--- a/src/uvc-sensor.h
+++ b/src/uvc-sensor.h
@@ -104,7 +104,6 @@ class uvc_sensor : public raw_sensor_base
     std::atomic< int > _user_count;
     std::mutex _power_lock;
     std::mutex _configure_lock;
-    std::vector< platform::extension_unit > _xus;
     std::unique_ptr< power > _power;
     std::unique_ptr< frame_timestamp_reader > _timestamp_reader;
 };
diff --git a/src/uvc/uvc-device.h b/src/uvc/uvc-device.h
index aa9b6c93d1..6441f44c48 100644
--- a/src/uvc/uvc-device.h
+++ b/src/uvc/uvc-device.h
@@ -51,6 +51,7 @@ namespace librealsense
             virtual void set_power_state(power_state state) override;
             virtual power_state get_power_state() const override;
 
+            void register_xu( platform::extension_unit && xu ) override {} // Not supported
             virtual void init_xu(const extension_unit& xu) override;
             virtual bool set_xu(const extension_unit& xu, uint8_t ctrl, const uint8_t* data, int len) override;
             virtual bool get_xu(const extension_unit& xu, uint8_t ctrl, uint8_t* data, int len) const override;