diff --git a/hgdriver/hgdev/hg_scanner_239.cpp b/hgdriver/hgdev/hg_scanner_239.cpp
index 7646883..e44c7ac 100644
--- a/hgdriver/hgdev/hg_scanner_239.cpp
+++ b/hgdriver/hgdev/hg_scanner_239.cpp
@@ -365,6 +365,12 @@ void hg_scanner_239::init_version(void)
 			is_kernelsnap_devsislock = true;
 		}
 	}
+
+	if (!is_kernelsnap_devsislock)
+	{
+		VLOG_MINI_1(LOG_LEVEL_DEBUG_INFO, "devs lock:%s \n", hg_scanner_err_name(SCANNER_ERR_DEVICE_NOT_SUPPORT));
+	}
+
 	VLOG_MINI_1(LOG_LEVEL_DEBUG_INFO, "Firmware version: %s\n", fv.c_str());
 
 	if (fv.length() >= 10 && (fv[5] > 'A' && atoi(fv.substr(6, 4).c_str()) >= 1209))
@@ -1395,11 +1401,17 @@ int hg_scanner_239::set_devshtudown()
 int hg_scanner_239::set_scan_islock(SANE_Bool set_islock)
 {
 	if (!is_kernelsnap_devsislock)
+	{
+		VLOG_MINI_1(LOG_LEVEL_DEBUG_INFO, "devs lock:%s \n", hg_scanner_err_name(SCANNER_ERR_DEVICE_NOT_SUPPORT));
 		return SCANNER_ERR_DEVICE_NOT_SUPPORT;
+	}
 
 	if (set_islock != 0 && set_islock != 1)
+	{
+		VLOG_MINI_1(LOG_LEVEL_DEBUG_INFO, "devs lock:%s \n", hg_scanner_err_name(SCANNER_ERR_INVALID_PARAMETER));
 		return SCANNER_ERR_INVALID_PARAMETER;
-
+	}
+	
 	int val = 0,
 		ret = write_register(setting3399::SR_SET_LOCK_STATES, set_islock);
 		VLOG_MINI_1(LOG_LEVEL_DEBUG_INFO, "Set scanner is lock:%d\r\n", set_islock);
@@ -1409,8 +1421,10 @@ int hg_scanner_239::set_scan_islock(SANE_Bool set_islock)
 int hg_scanner_239::get_scan_islock(SANE_Bool& islock)
 {
 	if (!is_kernelsnap_devsislock)
+	{
+		VLOG_MINI_1(LOG_LEVEL_DEBUG_INFO, "devs lock:%s \n", hg_scanner_err_name(SCANNER_ERR_DEVICE_NOT_SUPPORT));
 		return SCANNER_ERR_DEVICE_NOT_SUPPORT;
-
+	}
 
 		int val = 0,
 			ret = read_register(setting3399::SR_GET_LOCK_STATES, &val);
@@ -1427,7 +1441,11 @@ int hg_scanner_239::get_scan_islock(SANE_Bool& islock)
 int hg_scanner_239::set_scan_lock_check_val(string check_str)
 {
 	if (!is_kernelsnap_devsislock)
+	{
+		VLOG_MINI_1(LOG_LEVEL_DEBUG_INFO, "devs lock:%s \n", hg_scanner_err_name(SCANNER_ERR_DEVICE_NOT_SUPPORT));
 		return SCANNER_ERR_DEVICE_NOT_SUPPORT;
+	}
+		
 #if defined(WIN32) || defined(_WIN64)
 	if (check_str.empty())
 	{