diff --git a/hardware0.hpp b/hardware0.hpp
index 9014a41..e72868c 100644
--- a/hardware0.hpp
+++ b/hardware0.hpp
@@ -41,7 +41,6 @@ enum class ControlFlagsA0 {
 	DATA_REG_EMPTY = UDRE0,
 	TRANSMIT_COMPLETE = TXC0,
 	RECEIVE_COMPLETE = RXC0,
-
 };
 
 enum class ControlFlagsB0 {
@@ -86,7 +85,7 @@ constexpr int operator<<(const int &lhs, const ControlFlagsC0 &rhs)
 template <class Registers, typename CtrlFlagsA, typename CtrlFlagsB, typename CtrlFlagsC, class cfg, Mode mode>
 class Hardware {
   public:
-	static void init()
+	static void init() FORCE_INLINE
 	{
 		constexpr auto baudVal = calcBaud();
 
@@ -107,7 +106,7 @@ class Hardware {
 		*Registers::CTRL_STAT_REG_C = controlRegC;
 	}
 
-	static void txByte(typename cfg::data_t byte)
+	static void txByte(typename cfg::data_t byte) FORCE_INLINE
 	{
 		while (!(*Registers::CTRL_STAT_REG_A & (1 << CtrlFlagsA::DATA_REG_EMPTY)))
 			;
@@ -220,7 +219,7 @@ class Hardware0 {
 	using data_t = typename cfg::data_t;
 	static constexpr auto DATA_BITS = cfg::DATA_BITS;
 
-	static void init()
+	static void init() FORCE_INLINE
 	{
 		HardwareImpl::init();
 	}
@@ -230,9 +229,9 @@ class Hardware0 {
 		HardwareImpl::txByte(byte);
 	}
 
-	static data_t rxByte() {}
+	static data_t rxByte() FORCE_INLINE {}
 
-	static data_t peek() {}
+	static data_t peek() FORCE_INLINE {}
 
   private:
 	using HardwareImpl = detail::Hardware<detail::Registers0, detail::ControlFlagsA0, detail::ControlFlagsB0,
diff --git a/hardware1.hpp b/hardware1.hpp
index 88e0f17..3bb692d 100644
--- a/hardware1.hpp
+++ b/hardware1.hpp
@@ -81,7 +81,7 @@ class Hardware1 {
 	using data_t = typename cfg::data_t;
 	static constexpr auto DATA_BITS = cfg::DATA_BITS;
 
-	static void init()
+	static void init() FORCE_INLINE
 	{
 		HardwareImpl::init();
 	}
@@ -91,9 +91,9 @@ class Hardware1 {
 		HardwareImpl::txByte(byte);
 	}
 
-	static data_t rxByte() {}
+	static data_t rxByte() FORCE_INLINE {}
 
-	static data_t peek() {}
+	static data_t peek() FORCE_INLINE {}
 
   private:
 	using HardwareImpl = detail::Hardware<detail::Registers1, detail::ControlFlagsA1, detail::ControlFlagsB1,