IO RXbuffer now uses template RingBuffer

IO.h

@@ -24,6 +24,19 @@
 #include "SampleRB.h"
 #include "RingBuffer.h"
 
+struct TSample {
+  volatile uint16_t sample;
+  volatile uint8_t control;
+
+  TSample operator=(const volatile TSample& other) volatile {
+      return {other.sample, other.control};
+  }
+
+  volatile TSample operator=(const TSample& other) volatile {
+      return {other.sample, other.control};
+  }
+};
+
 class CIO {
 public:
   CIO();
@@ -59,7 +72,7 @@ public:
 private:
   bool                  m_started;
 
-  CSampleRB             m_rxBuffer;
+  CRingBuffer<TSample>  m_rxBuffer;
   CSampleRB             m_txBuffer;
   CRingBuffer<uint16_t> m_rssiBuffer;