diff --git a/Config.cpp b/Config.cpp
index 9cac826c..a2e86b1e 100644
--- a/Config.cpp
+++ b/Config.cpp
@@ -261,7 +261,7 @@ const void* Config::Set(const String& name, const Buffer& bs) const
 	// 重新搞一个配置头，使用新的数据去重新初始化
 	ConfigBlock header;
 	header.Init(name, bs);
-	header.Write(Device, (uint)cfg, bs);
+	if(!header.Write(Device, (uint)cfg, bs)) return nullptr;
 
 	return cfg->Data();
 }
diff --git a/Drivers/AT24CXX.h b/Drivers/AT24CXX.h
index e951a02a..5979069f 100644
--- a/Drivers/AT24CXX.h
+++ b/Drivers/AT24CXX.h
@@ -4,8 +4,8 @@
 #include "I2C.h"
 #include "..\Storage\Storage.h"
 
-// 光强传感器
-class AT24CXX : public Storage
+// EEPROM
+class AT24CXX : public CharStorage
 {
 public:
     I2C* IIC;		// I2C通信口