diff --git a/demo.exe b/demo.exe
deleted file mode 100644
index dc7ab82..0000000
Binary files a/demo.exe and /dev/null differ
diff --git a/include/serial.h b/include/serial.h
index f558802..5dd424a 100644
--- a/include/serial.h
+++ b/include/serial.h
@@ -70,18 +70,18 @@ template <typename T>
 concept _SupportString = requires {
     _IsCastable<T, const char *, char *, std::string, std::string_view>::value;
 };
-
-template <_SupportString T> std::string _to_string(T &&str) {
+template <_SupportString T> [[maybe_unused]] std::string _to_string(T &&str) {
     if constexpr (std::is_same_v<std::decay_t<T>, std::string>) {
         return str;
     } else if constexpr (std::is_same_v<std::decay_t<T>, std::string_view>) {
         return std::move(std::string(str.data()));
-    } else if constexpr (std::is_same_v<std::decay_t<T>,  const char*>) {
+    } else if constexpr (std::is_same_v<std::decay_t<T>, const char *>) {
         return std::string(str);
     }
 }
 
 static std::vector<std::string> GetUsbPorts() {
+#if defined(_WIN32) || defined(_WIN64)
     std::vector<std::string> portArray;
     std::string comname;
     std::string showname;
@@ -99,6 +99,9 @@ static std::vector<std::string> GetUsbPorts() {
         showname.clear();
     });
     return portArray;
+#elif defined(__linux__)
+
+#endif
 }
 
 enum class [[maybe_unused]] SerialErrorCode {
@@ -109,6 +112,26 @@ enum class [[maybe_unused]] SerialErrorCode {
     READINGERROR,
 };
 
+enum SerialDataBits {
+    DATABIT_5 = 0,
+    DATABIT_6,
+    DATABIT_7,
+    DATABIT_8,
+    DATABIT_16,
+};
+enum SerialStopBits {
+    STOPBIT_1 = 0,
+    STOPBIT_1_5,
+    STOPBIT_2,
+};
+enum SerialParity {
+    SERIAL_PARITY_NONE = 0,
+    SERIAL_PARITY_EVEN,
+    SERIAL_PARITY_ODD,
+    SERIAL_PARITY_MARK,
+    SERIAL_PARITY_SPACE,
+};
+
 class Serial {
   private:
     serialib ser;
@@ -139,15 +162,25 @@ class Serial {
     bool IsOpen() { return ser.isDeviceOpen(); }
 
     template <_SupportString T>
-    bool OpenDevice(T portName, unsigned int bauds = 115200,
-                    int delayTime = 0) {
+    bool OpenDevice(T portName, unsigned int bauds = 115200, int delayTime = 0,
+                    SerialDataBits dataBits = SerialDataBits::DATABIT_8,
+                    SerialStopBits stopBits = SerialStopBits::STOPBIT_1,
+                    SerialParity parity = SerialParity::SERIAL_PARITY_NONE) {
+#if defined(_WIN32) || defined(__WIN64)
         std::string reallyPortName;
         std::format_to(std::back_inserter(reallyPortName), "\\\\.\\{}",
                        portName);
+#elif defined(__linux__)
+        std::string reallyPortName = std::string(portName);
+#endif
         std::this_thread::sleep_for(std::chrono::milliseconds(delayTime));
         if (ser.isDeviceOpen())
-            return true;
-        int code = ser.openDevice(reallyPortName.c_str(), bauds);
+            ser.closeDevice();
+
+        int code = ser.openDevice(reallyPortName.c_str(), bauds,
+                                  static_cast<::SerialDataBits>(dataBits),
+                                  static_cast<::SerialParity>(parity),
+                                  static_cast<::SerialStopBits>(stopBits));
         if (code == 1) {
             return true;
         } else {
diff --git a/main.cc b/main.cc
index 1e3babb..4ed1e3f 100644
--- a/main.cc
+++ b/main.cc
@@ -25,16 +25,6 @@ std::vector<T> split(T str, T d) {
              });
     return std::vector<T>(v.begin(), v.end());
 }
-
-int main() {
-    Serial ser;
-    ser.OpenDevice("COM11", 115200);
-    ser.SetLogCallBack(PrintLog);
-    ser.GetAtUntilRepeat<5>("AT", "OK");
-    return 0;
-}
-
-/*
 int main(int argc, char **const argv) {
     Serial serial;
     auto ports = serial::GetUsbPorts();
@@ -77,5 +67,4 @@ int main(int argc, char **const argv) {
         }
     }
     return 0;
-}
-*/
\ No newline at end of file
+}
\ No newline at end of file