From b38a5bc50c06da903f6614f773d2a676203c7bf2 Mon Sep 17 00:00:00 2001
From: Stefan Lehmann <stlm@posteo.de>
Date: Mon, 20 Aug 2018 15:43:46 +0200
Subject: [PATCH] Add support for boards with different name of serial USB
 connection (#6)

* Replace SerialUSB by SERIAL_PORT_USBVIRTUAL

Support boards where USB serial is named differently. E.g. the
Adafruit Feather M0 uses Serial1 as name for serial USB port.
---
 src/samd/ArduinoLowPower.cpp | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/src/samd/ArduinoLowPower.cpp b/src/samd/ArduinoLowPower.cpp
index 8867d6e..d756ed6 100644
--- a/src/samd/ArduinoLowPower.cpp
+++ b/src/samd/ArduinoLowPower.cpp
@@ -17,7 +17,7 @@ void ArduinoLowPowerClass::idle(uint32_t millis) {
 
 void ArduinoLowPowerClass::sleep() {
 	bool restoreUSBDevice = false;
-	if (SerialUSB) {
+	if (SERIAL_PORT_USBVIRTUAL) {
 		USBDevice.standby();
 	} else {
 		USBDevice.detach();
@@ -100,4 +100,4 @@ void ArduinoLowPowerClass::attachInterruptWakeup(uint32_t pin, voidFuncPtr callb
 
 ArduinoLowPowerClass LowPower;
 
-#endif // ARDUINO_ARCH_SAMD
\ No newline at end of file
+#endif // ARDUINO_ARCH_SAMD