diff --git a/include/libcamera/internal/camera_manager.h b/include/libcamera/internal/camera_manager.h
new file mode 100644
index 00000000..8220a654
--- /dev/null
+++ b/include/libcamera/internal/camera_manager.h
@@ -0,0 +1,70 @@
+/* SPDX-License-Identifier: LGPL-2.1-or-later */
+/*
+ * Copyright (C) 2023, Ideas on Board Oy.
+ *
+ * camera_manager.h - Camera manager private data
+ */
+
+#pragma once
+
+#include <libcamera/camera_manager.h>
+
+#include <map>
+#include <memory>
+#include <sys/types.h>
+#include <vector>
+
+#include <libcamera/base/class.h>
+#include <libcamera/base/mutex.h>
+#include <libcamera/base/thread.h>
+#include <libcamera/base/thread_annotations.h>
+
+#include "libcamera/internal/ipa_manager.h"
+#include "libcamera/internal/process.h"
+
+namespace libcamera {
+
+class Camera;
+class DeviceEnumerator;
+
+class CameraManager::Private : public Extensible::Private, public Thread
+{
+	LIBCAMERA_DECLARE_PUBLIC(CameraManager)
+
+public:
+	Private();
+
+	int start();
+	void addCamera(std::shared_ptr<Camera> camera,
+		       const std::vector<dev_t> &devnums) LIBCAMERA_TSA_EXCLUDES(mutex_);
+	void removeCamera(Camera *camera) LIBCAMERA_TSA_EXCLUDES(mutex_);
+
+protected:
+	void run() override;
+
+private:
+	int init();
+	void createPipelineHandlers();
+	void cleanup() LIBCAMERA_TSA_EXCLUDES(mutex_);
+
+	/*
+	 * This mutex protects
+	 *
+	 * - initialized_ and status_ during initialization
+	 * - cameras_ and camerasByDevnum_ after initialization
+	 */
+	mutable Mutex mutex_;
+	std::vector<std::shared_ptr<Camera>> cameras_ LIBCAMERA_TSA_GUARDED_BY(mutex_);
+	std::map<dev_t, std::weak_ptr<Camera>> camerasByDevnum_ LIBCAMERA_TSA_GUARDED_BY(mutex_);
+
+	ConditionVariable cv_;
+	bool initialized_ LIBCAMERA_TSA_GUARDED_BY(mutex_);
+	int status_ LIBCAMERA_TSA_GUARDED_BY(mutex_);
+
+	std::unique_ptr<DeviceEnumerator> enumerator_;
+
+	IPAManager ipaManager_;
+	ProcessManager processManager_;
+};
+
+} /* namespace libcamera */
diff --git a/include/libcamera/internal/meson.build b/include/libcamera/internal/meson.build
index d7508805..4b2756a4 100644
--- a/include/libcamera/internal/meson.build
+++ b/include/libcamera/internal/meson.build
@@ -15,6 +15,7 @@ libcamera_internal_headers = files([
     'camera.h',
     'camera_controls.h',
     'camera_lens.h',
+    'camera_manager.h',
     'camera_sensor.h',
     'camera_sensor_properties.h',
     'control_serializer.h',
diff --git a/src/libcamera/camera_manager.cpp b/src/libcamera/camera_manager.cpp
index c1edefda..882b2d4b 100644
--- a/src/libcamera/camera_manager.cpp
+++ b/src/libcamera/camera_manager.cpp
@@ -5,27 +5,26 @@
  * camera_manager.h - Camera management
  */
 
-#include <libcamera/camera_manager.h>
+#include "libcamera/internal/camera_manager.h"
 
-#include <map>
+#include <libcamera/base/log.h>
+#include <libcamera/base/utils.h>
 
 #include <libcamera/camera.h>
 
-#include <libcamera/base/log.h>
-#include <libcamera/base/mutex.h>
-#include <libcamera/base/thread.h>
-#include <libcamera/base/utils.h>
-
 #include "libcamera/internal/device_enumerator.h"
-#include "libcamera/internal/ipa_manager.h"
 #include "libcamera/internal/pipeline_handler.h"
-#include "libcamera/internal/process.h"
 
 /**
- * \file camera_manager.h
+ * \file libcamera/camera_manager.h
  * \brief The camera manager
  */
 
+/**
+ * \file libcamera/internal/camera_manager.h
+ * \brief Internal camera manager support
+ */
+
 /**
  * \brief Top-level libcamera namespace
  */
@@ -33,46 +32,6 @@ namespace libcamera {
 
 LOG_DEFINE_CATEGORY(Camera)
 
-class CameraManager::Private : public Extensible::Private, public Thread
-{
-	LIBCAMERA_DECLARE_PUBLIC(CameraManager)
-
-public:
-	Private();
-
-	int start();
-	void addCamera(std::shared_ptr<Camera> camera,
-		       const std::vector<dev_t> &devnums) LIBCAMERA_TSA_EXCLUDES(mutex_);
-	void removeCamera(Camera *camera) LIBCAMERA_TSA_EXCLUDES(mutex_);
-
-	/*
-	 * This mutex protects
-	 *
-	 * - initialized_ and status_ during initialization
-	 * - cameras_ and camerasByDevnum_ after initialization
-	 */
-	mutable Mutex mutex_;
-	std::vector<std::shared_ptr<Camera>> cameras_ LIBCAMERA_TSA_GUARDED_BY(mutex_);
-	std::map<dev_t, std::weak_ptr<Camera>> camerasByDevnum_ LIBCAMERA_TSA_GUARDED_BY(mutex_);
-
-protected:
-	void run() override;
-
-private:
-	int init();
-	void createPipelineHandlers();
-	void cleanup() LIBCAMERA_TSA_EXCLUDES(mutex_);
-
-	ConditionVariable cv_;
-	bool initialized_ LIBCAMERA_TSA_GUARDED_BY(mutex_);
-	int status_ LIBCAMERA_TSA_GUARDED_BY(mutex_);
-
-	std::unique_ptr<DeviceEnumerator> enumerator_;
-
-	IPAManager ipaManager_;
-	ProcessManager processManager_;
-};
-
 CameraManager::Private::Private()
 	: initialized_(false)
 {