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diff --git a/thirdparty/nRF5_SDK_15.0.0_a53641a/components/libraries/block_dev/empty/nrf_block_dev_empty.h b/thirdparty/nRF5_SDK_15.0.0_a53641a/components/libraries/block_dev/empty/nrf_block_dev_empty.h
new file mode 100644
index 0000000..2f2dc76
--- /dev/null
+++ b/thirdparty/nRF5_SDK_15.0.0_a53641a/components/libraries/block_dev/empty/nrf_block_dev_empty.h
@@ -0,0 +1,140 @@
+/**
+ * Copyright (c) 2016 - 2018, Nordic Semiconductor ASA
+ * 
+ * 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, except as embedded into a Nordic
+ *    Semiconductor ASA integrated circuit in a product or a software update for
+ *    such product, 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 of Nordic Semiconductor ASA nor the names of its
+ *    contributors may be used to endorse or promote products derived from this
+ *    software without specific prior written permission.
+ * 
+ * 4. This software, with or without modification, must only be used with a
+ *    Nordic Semiconductor ASA integrated circuit.
+ * 
+ * 5. Any software provided in binary form under this license must not be reverse
+ *    engineered, decompiled, modified and/or disassembled.
+ * 
+ * THIS SOFTWARE IS PROVIDED BY NORDIC SEMICONDUCTOR ASA "AS IS" AND ANY EXPRESS
+ * OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
+ * OF MERCHANTABILITY, NONINFRINGEMENT, AND FITNESS FOR A PARTICULAR PURPOSE ARE
+ * DISCLAIMED. IN NO EVENT SHALL NORDIC SEMICONDUCTOR ASA 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.
+ * 
+ */
+#ifndef NRF_BLOCK_DEV_EMPTY_H__
+#define NRF_BLOCK_DEV_EMPTY_H__
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+#include "nrf_block_dev.h"
+
+
+/**@file
+ *
+ * @defgroup nrf_block_dev_empty Empty implementation
+ * @ingroup nrf_block_dev
+ *
+ * This module implements block device API. It works like:
+ *           - /dev/empty for write operations
+ *           - /dev/zero for read operations
+ * @{
+ *
+ */
+
+/**
+ * @brief EMPTY block device operations
+ * */
+extern const nrf_block_dev_ops_t nrf_block_device_empty_ops;
+
+/**
+ * @brief Work structure of EMPTY block device.
+ */
+typedef struct {
+    nrf_block_dev_geometry_t geometry;      //!< Block device geometry
+    nrf_block_dev_ev_handler ev_handler;    //!< Block device event handler
+    void const *             p_context;     //!< Context handle passed to event handler
+} nrf_block_dev_empty_work_t;
+
+
+/**
+ * @brief EMPTY block device config initializer (@ref nrf_block_dev_empty_config_t)
+ *
+ * @param blk_size   Block size
+ * @param blk_count  Block count
+ * */
+#define NRF_BLOCK_DEV_EMPTY_CONFIG(blk_size, blk_count)  {  \
+        .block_size = (blk_size),                           \
+        .block_count = (blk_count)                          \
+}
+
+/**
+ * @brief EMPTY block device config
+ */
+typedef struct {
+    uint32_t block_size;        //!< Desired block size
+    uint32_t block_count;       //!< Desired block count
+} nrf_block_dev_empty_config_t;
+
+/**
+ * @brief EMPTY block device
+ * */
+typedef struct {
+    nrf_block_dev_t              block_dev;       //!< Block device
+    nrf_block_dev_info_strings_t info_strings;    //!< Block device information strings
+    nrf_block_dev_empty_config_t empty_config;    //!< EMPTY block device config
+    nrf_block_dev_empty_work_t * p_work;          //!< EMPTY block device work structure
+} nrf_block_dev_empty_t;
+
+/**
+ * @brief Defines a EMPTY block device.
+ *
+ * @param name          Instance name
+ * @param config        Configuration @ref nrf_block_dev_empty_config_t
+ * @param info          Info strings @ref NFR_BLOCK_DEV_INFO_CONFIG
+ * */
+#define NRF_BLOCK_DEV_EMPTY_DEFINE(name, config, info)                  \
+    static nrf_block_dev_empty_work_t CONCAT_2(name, _work);            \
+    static const nrf_block_dev_empty_t name = {                         \
+        .block_dev = { .p_ops = &nrf_block_device_empty_ops },          \
+        .info_strings = BRACKET_EXTRACT(info),                          \
+        .empty_config = config,                                         \
+        .p_work = &CONCAT_2(name, _work),                               \
+    }
+
+/**
+ * @brief Returns block device API handle from EMPTY block device.
+ *
+ * @param[in] p_blk_empty EMPTY block device
+ * @return Block device handle
+ */
+static inline nrf_block_dev_t const *
+nrf_block_dev_empty_ops_get(nrf_block_dev_empty_t const * p_blk_empty)
+{
+    return &p_blk_empty->block_dev;
+}
+
+/** @} */
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* NRF_BLOCK_DEV_EMPTY_H__ */