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+/****************************************************************************
+ *
+ * Copyright (c) 2014 PX4 Development Team. All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in
+ * the documentation and/or other materials provided with the
+ * distribution.
+ * 3. Neither the name PX4 nor the names of its contributors may be
+ * used to endorse or promote products derived from this software
+ * without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
+ * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
+ * COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
+ * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
+ * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
+ * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
+ * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
+ * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGE.
+ *
+ ****************************************************************************/
+
+/*
+ * @file circuit_breaker.h
+ *
+ * Circuit breaker functionality.
+ */
+
+#ifndef CIRCUIT_BREAKER_H_
+#define CIRCUIT_BREAKER_H_
+
+/* SAFETY WARNING -- SAFETY WARNING -- SAFETY WARNING
+ *
+ * OBEY THE DOCUMENTATION FOR ALL CIRCUIT BREAKERS HERE,
+ * ENSURE TO READ CAREFULLY ALL SAFETY WARNINGS.
+ * http://pixhawk.org/dev/circuit_breakers
+ *
+ * CIRCUIT BREAKERS ARE NOT PART OF THE STANDARD OPERATION PROCEDURE
+ * AND MAY DISABLE CHECKS THAT ARE VITAL FOR SAFE FLIGHT.
+ */
+#define CBRK_SUPPLY_CHK_KEY 894281
+#define CBRK_RATE_CTRL_KEY 140253
+#define CBRK_IO_SAFETY_KEY 22027
+
+#include <stdbool.h>
+
+__BEGIN_DECLS
+
+__EXPORT bool circuit_breaker_enabled(const char* breaker, int32_t magic);
+
+__END_DECLS
+
+#endif /* CIRCUIT_BREAKER_H_ */