Index: uspace/lib/fmgt/private/fmgt.h
===================================================================
--- uspace/lib/fmgt/private/fmgt.h	(revision d101368843a610fee26218d73d35748078bdb56d)
+++ uspace/lib/fmgt/private/fmgt.h	(revision d101368843a610fee26218d73d35748078bdb56d)
@@ -0,0 +1,55 @@
+/*
+ * Copyright (c) 2025 Jiri Svoboda
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *
+ * - Redistributions of source code must retain the above copyright
+ *   notice, this list of conditions and the following disclaimer.
+ * - 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.
+ * - The name of the author may not be used to endorse or promote products
+ *   derived from this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``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 AUTHOR 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.
+ */
+
+/** @addtogroup fmgt
+ * @{
+ */
+/**
+ * @file
+ * @brief File management library - private definitions.
+ */
+
+#ifndef PRIVATE_FMGT_H
+#define PRIVATE_FMGT_H
+
+#include <stdbool.h>
+#include "../include/types/fmgt.h"
+
+#define BUFFER_SIZE 16384
+
+extern void fmgt_timer_start(fmgt_t *);
+extern void fmgt_timer_stop(fmgt_t *);
+extern bool fmgt_abort_query(fmgt_t *);
+extern fmgt_error_action_t fmgt_io_error_query(fmgt_t *, fmgt_io_error_t *);
+extern void fmgt_initial_progress_update(fmgt_t *);
+extern void fmgt_final_progress_update(fmgt_t *);
+
+#endif
+
+/** @}
+ */