diff --git a/config.hpp b/config.hpp
new file mode 100644
index 0000000..8dc8a1b
--- /dev/null
+++ b/config.hpp
@@ -0,0 +1,30 @@
+#pragma once
+
+namespace spi {
+
+enum class ClockDiv {
+	DIV_4 = 0,
+	DIV_16 = 1,
+	DIV_64 = 2,
+	DIV_128 = 3,
+
+	DIV_2X_2 = 4,
+	DIV_2X_8 = 5,
+	DIV_2X_32 = 6,
+	DIV_2X_64 = 7,
+};
+
+enum class Mode {
+	MODE_0 = 0,
+	MODE_1 = 1,
+	MODE_2 = 2,
+	MODE_3 = 3,
+};
+
+template <ClockDiv freq, Mode mode>
+struct Config {
+	static constexpr auto FREQ = freq;
+	static constexpr auto MODE = mode;
+};
+
+} // namespace spi
diff --git a/hardware.hpp b/hardware.hpp
new file mode 100644
index 0000000..c5dc164
--- /dev/null
+++ b/hardware.hpp
@@ -0,0 +1,9 @@
+#pragma once
+
+namespace spi {
+
+template <class Cfg>
+class Hardware {
+};
+
+} // namespace spi
diff --git a/spi.hpp b/spi.hpp
index 3b71fdf..3343324 100644
--- a/spi.hpp
+++ b/spi.hpp
@@ -1,32 +1,15 @@
 #pragma once
 
+#include "config.hpp"
+#include "hardware.hpp"
+
 #include "../io/io.hpp"
 
-#include <avr/io.h>
-
 namespace spi {
 
+template <class Driver>
 class Spi {
   public:
-	enum class ClockDiv {
-		CLKDIV_4 = 0,
-		CLKDIV_16 = 1,
-		CLKDIV_64 = 2,
-		CLKDIV_128 = 3,
-
-		CLKDIV_2X_2 = 4,
-		CLKDIV_2X_8 = 5,
-		CLKDIV_2X_32 = 6,
-		CLKDIV_2X_64 = 7,
-	};
-
-	enum class Mode {
-		MODE_0 = 0,
-		MODE_1 = 1,
-		MODE_2 = 2,
-		MODE_3 = 3,
-	};
-
   private:
 	static void setCPOL(bool bCPOL)
 	{
@@ -51,7 +34,7 @@ class Spi {
 	static io::Pin<io::P::B2> sm_cSS;
 
   public:
-	static void init(ClockDiv enmClockDiv = ClockDiv::CLKDIV_128, Mode enmMode = Mode::MODE_0, bool bMaster = true,
+	static void init(ClockDiv enmClockDiv = ClockDiv::DIV_128, Mode enmMode = Mode::MODE_0, bool bMaster = true,
 	                 bool bLSBFirst = false, bool bMISOPullup = false)
 	{
 		if (bMaster) {