Use pin 15 and 16 for SS and INT respectivly

The Wifio is not supported for now

README.md

@@ -124,6 +124,7 @@ Currently the following boards are supported by the library:
 * STM32F4
     * Currently the [NUCLEO-F446RE](http://www.st.com/web/catalog/tools/FM116/SC959/SS1532/LN1847/PF262063) is supported featuring the STM32F446. Take a look at the following example code: <https://github.com/Lauszus/Nucleo_F446RE_USBHost>.
 * ESP8266 is supported using the [ESP8266 Arduino core](https://github.com/esp8266/Arduino)
+    * Note it uses pin 15 and 16 for SS and INT respectively
 
 The following boards need to be activated manually in [settings.h](settings.h):
 

UsbCore.h

@@ -39,6 +39,8 @@ typedef MAX3421e<P53, P54> MAX3421E; // Arduino Mega ADK
 typedef MAX3421e<P20, P19> MAX3421E; // Balanduino
 #elif defined(__ARDUINO_X86__) && PLATFORM_ID == 0x06
 typedef MAX3421e<P3, P2> MAX3421E; // The Intel Galileo supports much faster read and write speed at pin 2 and 3
+#elif defined(ESP8266)
+typedef MAX3421e<P15, P16> MAX3421E; // ESP8266 boards
 #else
 typedef MAX3421e<P10, P9> MAX3421E; // Official Arduinos (UNO, Duemilanove, Mega, 2560, Leonardo, Due etc.), Intel Edison, Intel Galileo 2 or Teensy 2.0 and 3.0
 #endif

settings.h

@@ -189,4 +189,8 @@ extern SPI_HandleTypeDef SPI_Handle; // Needed to be declared in your main.cpp
 #define pgm_read_word(addr) (*reinterpret_cast<const uint16_t*>(addr))
 #endif
 
+#ifdef ARDUINO_ESP8266_WIFIO
+#error "This board is currently not supported"
+#endif
+
 #endif /* SETTINGS_H */