Overload SpiBusDeviceConfig in order to support the simple use case of just using a cs pin. (#2)

Author: aentinger

Diff for: examples/ts_spi/ts_spi.ino

@@ -27,14 +27,7 @@ void bmp388_thread_func();
  * GLOBAL VARIABLES
  **************************************************************************************/
 
-SpiBusDevice bmp388{"SPI",
-                    SpiBusDeviceConfig {
-                     SPISettings{1000000, MSBFIRST, SPI_MODE0},
-                     /* bmp388_select   or ... */ [](){ digitalWrite(BMP388_CS_PIN, LOW ); },
-                     /* bmp388_deselect or ... */ [](){ digitalWrite(BMP388_CS_PIN, HIGH); }
-                    }
-                   };
-
+SpiBusDevice bmp388{"SPI", SpiBusDeviceConfig {SPISettings{1000000, MSBFIRST, SPI_MODE0}, BMP388_CS_PIN}};
 
 static char thread_name[NUM_THREADS][32];
 

Diff for: src/spi/SpiBusDeviceConfig.h

@@ -48,6 +48,15 @@ class SpiBusDeviceConfig
   , _fill_symbol{fill_symbol}
   { }
 
+  SpiBusDeviceConfig(SPISettings const & spi_settings, int const cs_pin, byte const fill_symbol = 0xFF)
+  : SpiBusDeviceConfig
+    {spi_settings,
+     [cs_pin](){ digitalWrite(cs_pin, LOW); },
+     [cs_pin](){ digitalWrite(cs_pin, HIGH); },
+     fill_symbol
+    }
+  { }
+
 
   SPISettings settings   () const { return _spi_settings; }
   void        select     () const { if (_spi_select) _spi_select(); }