--- nono/host/hostdevice.h	2026/04/29 17:05:18	1.1.1.2
+++ nono/host/hostdevice.h	2026/04/29 17:05:21	1.1.1.3
@@ -29,7 +29,7 @@ class HostDevice : public ThreadDevice
 	static const int DATA_FROM_SIGNAL	= 4;	// シグナル受信
 
  protected:
-	HostDevice(int objid_);
+	HostDevice(Device *parent_, int objid_);
  public:
 	virtual ~HostDevice() override;
 
@@ -45,7 +45,6 @@ class HostDevice : public ThreadDevice
 	int DelOuter(int fd);
 	int AddListen(int ls, int action);
 
-	void SetCallbackDevice(Device *);
 	void SetRxCallback(DeviceCallback_t func);
 	void SetAcceptCallback(DeviceCallback_t func);
 
@@ -65,6 +64,9 @@ class HostDevice : public ThreadDevice
 	// ログ出力
 	void putlogn(const char *fmt, ...) const override __printflike(2, 3);
 
+	// 親デバイス
+	Device *parent {};
+
 	autofd kq {};
 
 	// VM からの送信用パイプ
@@ -72,7 +74,6 @@ class HostDevice : public ThreadDevice
 	autofd wpipe {};
 
 	// 各種通知コールバック
-	Device *dev {};
 	DeviceCallback_t rx_func {};
 	DeviceCallback_t accept_func {};