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Author: UltimumControl

libraries/SPI/src/SPI.cpp

@@ -144,6 +144,12 @@ void SPIClass::setHwCs(bool use) {
   _use_hw_ss = use;
 }
 
+void SPIClass::setSSInvert(bool invert) {
+  if (_spi) {
+    spiSSInvertout(_spi, invert);
+  }
+}
+
 void SPIClass::setFrequency(uint32_t freq) {
   SPI_PARAM_LOCK();
   //check if last freq changed

libraries/SPI/src/SPI.h

@@ -63,8 +63,9 @@ class SPIClass {
   ~SPIClass();
   void begin(int8_t sck = -1, int8_t miso = -1, int8_t mosi = -1, int8_t ss = -1);
   void end();
-
+  
   void setHwCs(bool use);
+  void setSSInvert(bool invert);
   void setBitOrder(uint8_t bitOrder);
   void setDataMode(uint8_t dataMode);
   void setFrequency(uint32_t freq);