Return true for boolean test on Serial

Fixes: https://github.com/espressif/arduino-esp32/issues/270

Return true for boolean test on Serial
Fixes: https://github.com/espressif/arduino-esp32/issues/270
9388d835 · me-no-dev · 9dae9cea · 9388d835
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cores/esp32/HardwareSerial.cpp cores/esp32/HardwareSerial.cpp +1 -1

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--- a/cores/esp32/HardwareSerial.cpp
+++ b/cores/esp32/HardwareSerial.cpp
@@ -89,5 +89,5 @@ size_t HardwareSerial::write(const uint8_t *buffer, size_t size)
 HardwareSerial::operator bool() const
 {
-    return _uart != 0;
+    return true;
 }