Added SERIAL metadata into variant files.

1 files changed, 18 insertions, 0 deletions

diff --git a/variants/ethernet/pins_arduino.h b/variants/ethernet/pins_arduino.h
index 9676698..b7030d0 100644
--- a/variants/ethernet/pins_arduino.h
+++ b/variants/ethernet/pins_arduino.h
@@ -215,4 +215,22 @@ const uint8_t PROGMEM digital_pin_to_timer_PGM[] = {
 
 #endif
 
+// These serial port names are intended to allow libraries and architecture-neutral
+// sketches to automatically default to the correct port name for a particular type
+// of use.  For example, a GPS module would normally connect to SERIAL_PORT_HARDWARE_OPEN,
+// the first hardware serial port whose RX/TX pins are not dedicated to another use.
+//
+// SERIAL_PORT_MONITOR        Port which normally prints to the Arduino Serial Monitor
+//
+// SERIAL_PORT_USBVIRTUAL     Port which is USB virtual serial
+//
+// SERIAL_PORT_LINUXBRIDGE    Port which connects to a Linux system via Bridge library
+//
+// SERIAL_PORT_HARDWARE       Hardware serial port, physical RX & TX pins.
+//
+// SERIAL_PORT_HARDWARE_OPEN  Hardware serial ports which are open for use.  Their RX & TX
+//                            pins are NOT connected to anything by default.
+#define SERIAL_PORT_HARDWARE       Serial
+#define SERIAL_PORT_HARDWARE_OPEN  Serial1
+
 #endif