XU list saved in uvc_device not uvc_sensor

src/linux/backend-v4l2.h

@@ -355,7 +355,7 @@ namespace librealsense
             void set_power_state(power_state state) override;
             power_state get_power_state() const override { return _state; }
 
-            void init_xu(const extension_unit&) override {}
+            void register_xu( platform::extension_unit && xu ) 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;
             control_range get_xu_range(const extension_unit& xu, uint8_t control, int len) const override;

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()

src/mf/mf-uvc.h

@@ -79,7 +79,7 @@ namespace librealsense
             static bool is_connected(const uvc_device_info& info);
             static void foreach_uvc_device(enumeration_callback action);
 
-            void init_xu(const extension_unit& xu) override;
+            void register_xu( platform::extension_unit && xu ) override { _xus.push_back( std::move( xu ) ); }
             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;
             control_range get_xu_range(const extension_unit& xu, uint8_t ctrl, int len) const override;
@@ -101,6 +101,7 @@ namespace librealsense
         private:
             friend class source_reader_callback;
 
+            void init_xu(const extension_unit& xu);
             void play_profile(stream_profile profile, frame_callback callback);
             void stop_stream_cleanup(const stream_profile& profile, std::vector<profile_and_callback>::iterator& elem);
             void flush(int sIndex);
@@ -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

src/platform/uvc-device.h

@@ -128,7 +128,7 @@ class uvc_device
     virtual void set_power_state( power_state state ) = 0;
     virtual power_state get_power_state() const = 0;
 
-    virtual void init_xu( const extension_unit & xu ) = 0;
+    virtual void register_xu( platform::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;
     virtual control_range get_xu_range( const extension_unit & xu, uint8_t ctrl, int len ) const = 0;
@@ -183,7 +183,7 @@ class retry_controls_work_around : public uvc_device
 
     power_state get_power_state() const override { return _dev->get_power_state(); }
 
-    void init_xu( const extension_unit & xu ) override { _dev->init_xu( xu ); }
+    void register_xu( platform::extension_unit && xu ) override { _dev->register_xu( std::move( xu ) ); }
 
     bool set_xu( const extension_unit & xu, uint8_t ctrl, const uint8_t * data, int len ) override
     {
@@ -313,7 +313,7 @@ class multi_pins_uvc_device : public uvc_device
 
     power_state get_power_state() const override { return _dev.front()->get_power_state(); }
 
-    void init_xu( const extension_unit & xu ) override { _dev.front()->init_xu( xu ); }
+    void register_xu( platform::extension_unit && xu ) override { _dev.front()->register_xu( std::move( xu ) ); }
 
     bool set_xu( const extension_unit & xu, uint8_t ctrl, const uint8_t * data, int len ) override
     {

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 )
         {

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;
 };

src/uvc/uvc-device.cpp

@@ -210,12 +210,6 @@ namespace librealsense
             return _power_state;
         }
 
-        void rs_uvc_device::init_xu(const extension_unit& xu)
-        {
-            // not supported
-            return;
-        }
-
         bool rs_uvc_device::set_xu(const extension_unit& xu, uint8_t ctrl, const uint8_t* data, int len)
         {
             return uvc_set_ctrl(xu.unit, ctrl, (void *) data, len);

src/uvc/uvc-device.h

@@ -51,7 +51,7 @@ namespace librealsense
             virtual void set_power_state(power_state state) override;
             virtual power_state get_power_state() const override;
 
-            virtual void init_xu(const extension_unit& xu) override;
+            void register_xu( platform::extension_unit && xu ) override {} // Not supported
             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;
             virtual control_range get_xu_range(const extension_unit& xu, uint8_t ctrl, int len) const override;