@@ -104,22 +104,24 @@ const SPISettings DEFAULT_SPI_SETTINGS = SPISettings();
104104class HardwareSPI
105105{
106106 public:
107- virtual uint8_t transfer (uint8_t data);
108- virtual uint16_t transfer16 (uint16_t data);
109- virtual void transfer (void *buf, size_t count);
107+ virtual ~HardwareSPI () { }
108+ 109+ virtual uint8_t transfer (uint8_t data) = 0;
110+ virtual uint16_t transfer16 (uint16_t data) = 0;
111+ virtual void transfer (void *buf, size_t count) = 0;
110112
111113 // Transaction Functions
112- virtual void usingInterrupt (int interruptNumber);
113- virtual void notUsingInterrupt (int interruptNumber);
114- virtual void beginTransaction (SPISettings settings);
115- virtual void endTransaction (void );
114+ virtual void usingInterrupt (int interruptNumber) = 0 ;
115+ virtual void notUsingInterrupt (int interruptNumber) = 0 ;
116+ virtual void beginTransaction (SPISettings settings) = 0 ;
117+ virtual void endTransaction (void ) = 0 ;
116118
117119 // SPI Configuration methods
118- virtual void attachInterrupt ();
119- virtual void detachInterrupt ();
120+ virtual void attachInterrupt () = 0 ;
121+ virtual void detachInterrupt () = 0 ;
120122
121- virtual void begin ();
122- virtual void end ();
123+ virtual void begin () = 0 ;
124+ virtual void end () = 0 ;
123125};
124126
125127// Alias SPIClass to HardwareSPI since it's already the defacto standard for SPI classe name
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