diff --git a/hgdriver/hgdev/hg_scanner.cpp b/hgdriver/hgdev/hg_scanner.cpp
index 62705ef..5265756 100644
--- a/hgdriver/hgdev/hg_scanner.cpp
+++ b/hgdriver/hgdev/hg_scanner.cpp
@@ -3664,7 +3664,7 @@ int hg_scanner::device_io_control(unsigned long code, void* data, unsigned* len)
 	}
 	else if (code == IO_CTRL_CODE_SET_SERIAL)
 	{
-	string str = (char*)data;
+		string str = (char*)data;
 		return set_serial_num((char*)data);
 	}
 	else if (code == IO_CTRL_CODE_GET_VIDPID)
@@ -3674,6 +3674,26 @@ int hg_scanner::device_io_control(unsigned long code, void* data, unsigned* len)
 		(*(int*)data) = num;
 		return ret;
 	}
+	else if (code == IO_CTRL_CODE_SET_DEVS_MODEL)
+	{
+		return set_device_model((char*)data);
+	}
+	else if (code == IO_CTRL_CODE_GET_DEVS_MODEL)
+	{
+		int num = 0;
+		string str = get_device_model();
+		if (str.empty())
+		{
+			return SCANNER_ERR_NO_DATA;
+		}
+		if (*len < str.size())
+		{
+			*len = str.size();
+			return SCANNER_ERR_INSUFFICIENT_MEMORY;
+		}
+		strcpy((char*)data, str.c_str());
+		return SCANNER_ERR_OK;
+	}
 	return SCANNER_ERR_DEVICE_NOT_SUPPORT;
 }
 std::string hg_scanner::get_firmware_version(void)
@@ -3794,6 +3814,10 @@ int hg_scanner::set_auto_flat(int data)
 {
 	return SCANNER_ERR_DEVICE_NOT_SUPPORT;
 }
+int hg_scanner::set_device_model(string sts)
+{
+	return SCANNER_ERR_DEVICE_NOT_SUPPORT;
+}
 int hg_scanner::set_serial_num(string str)
 {
 	return SCANNER_ERR_DEVICE_NOT_SUPPORT;
diff --git a/hgdriver/hgdev/hg_scanner.h b/hgdriver/hgdev/hg_scanner.h
index bcf191b..3fa4ac4 100644
--- a/hgdriver/hgdev/hg_scanner.h
+++ b/hgdriver/hgdev/hg_scanner.h
@@ -477,6 +477,8 @@ public:
     virtual std::string get_serial_num(void);
     virtual std::string get_ip(void);
     virtual std::string get_device_model(void);
+
+    virtual int set_device_model(string str);
     virtual int set_serial_num(string str) = 0;             //设置序列号
     virtual int set_vid_pid(int data) = 0;                  //设置vidpid
     virtual int get_vid_pid(int& data) = 0;                 //获取vidpid
diff --git a/hgdriver/hgdev/hg_scanner_239.cpp b/hgdriver/hgdev/hg_scanner_239.cpp
index a7a8d6e..1a155d3 100644
--- a/hgdriver/hgdev/hg_scanner_239.cpp
+++ b/hgdriver/hgdev/hg_scanner_239.cpp
@@ -1490,6 +1490,38 @@ std::string hg_scanner_239::get_device_model(void)
 
 	return str;
 }
+int hg_scanner_239::set_device_model(string str)
+{
+	if (str.empty())
+	{
+		return SCANNER_ERR_NO_DATA;
+	}
+	string 	device_model = "/home/linaro/microtek_sn";
+
+	int 	ret = SCANNER_ERR_OK;
+	int		buffersize = 0;
+	int		len = device_model.size();
+	int		lenstr = str.size();
+	io_->set_timeout(3000);
+	ret = write_register(setting3399::SR_SET_JSON_PATH, len);
+	if (ret != SCANNER_ERR_OK)
+		return ret;
+
+	ret = io_->write_bulk(&device_model[0], &len);
+	if (ret != SCANNER_ERR_OK)
+		return ret;
+
+
+	ret = write_register(setting3399::SR_SET_JSON, lenstr);
+	if (ret != SCANNER_ERR_OK)
+		return ret;
+
+	ret = io_->write_bulk(&str[0], &lenstr);
+	if (ret != SCANNER_ERR_OK)
+		return ret;
+;
+	return SCANNER_ERR_OK;
+}
 int hg_scanner_239::set_serial_num(string str)
 {
 	int len = str.size(),
diff --git a/hgdriver/hgdev/hg_scanner_239.h b/hgdriver/hgdev/hg_scanner_239.h
index 79d30e7..a258750 100644
--- a/hgdriver/hgdev/hg_scanner_239.h
+++ b/hgdriver/hgdev/hg_scanner_239.h
@@ -88,6 +88,7 @@ public:
 	virtual std::string get_ip(void)override;
 	virtual std::string get_device_model(void);
 
+	virtual int set_device_model(string str);
 	virtual int set_serial_num(string str) override;             //设置序列号
 	virtual int set_vid_pid(int data) override;                  //设置vidpid
 	virtual int get_vid_pid(int& data)override;                  //获取vidpid