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diff --git a/Radio/HW/BladeRF/src/expansion/xb300.h b/Radio/HW/BladeRF/src/expansion/xb300.h
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+++ b/Radio/HW/BladeRF/src/expansion/xb300.h
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+/**
+ * @file xb.h
+ *
+ * @brief XB-300 support
+ *
+ * This file is part of the bladeRF project:
+ *   http://www.github.com/nuand/bladeRF
+ *
+ * Copyright (C) 2014 Nuand LLC
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with this library; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#ifndef EXPANSION_XB300_H_
+#define EXPANSION_XB300_H_
+
+#include <stdbool.h>
+
+#include <libbladeRF.h>
+
+#include "board/board.h"
+
+int xb300_attach(struct bladerf *dev);
+void xb300_detach(struct bladerf *dev);
+int xb300_enable(struct bladerf *dev, bool enable);
+int xb300_init(struct bladerf *dev);
+
+/**
+ * Configure the XB-300 TRX path
+ *
+ * @param       dev     Device handle
+ * @param[in]   trx     Desired XB-300 TRX setting
+ *
+ * @return 0 on success, BLADERF_ERR_* value on failure
+ */
+int xb300_set_trx(struct bladerf *dev, bladerf_xb300_trx trx);
+
+/**
+ * Get the current XB-300 signal path
+ *
+ * @param       dev     Device handle
+ * @param[out]  trx     XB300 TRX antenna setting
+ *
+ * @return 0 on success, BLADERF_ERR_* value on failure
+ */
+int xb300_get_trx(struct bladerf *dev, bladerf_xb300_trx *trx);
+
+/**
+ * Enable or disable selected XB-300 amplifier
+ *
+ * @param       dev     Device handle
+ * @param[in]   amp     XB-300 amplifier
+ * @param[in]   enable  Set true to enable or false to disable
+ *
+ * @return 0 on success, BLADERF_ERR_* value on failure
+ */
+int xb300_set_amplifier_enable(struct bladerf *dev,
+                               bladerf_xb300_amplifier amp,
+                               bool enable);
+/**
+ * Get state of selected XB-300 amplifier
+ *
+ * @param       dev     Device handle
+ * @param[in]   amp     XB-300 amplifier
+ * @param[out]  enable  Set true to enable or false to disable
+ *
+ * @return 0 on success, BLADERF_ERR_* value on failure
+ */
+int xb300_get_amplifier_enable(struct bladerf *dev,
+                               bladerf_xb300_amplifier amp,
+                               bool *enable);
+/**
+ * Get current PA PDET output power in dBm
+ *
+ * @param       dev     Device handle
+ * @param[out]  val     Output power in dBm
+ *
+ * @return 0 on success, value from \ref RETCODES list on failure
+ */
+int xb300_get_output_power(struct bladerf *dev, float *val);
+
+#endif