--- /dev/null
+/*
+ * lowlevel libustd header file
+ *
+ * Copyright 2005-2010 -
+ * Mathieu Desnoyers <mathieu.desnoyers@polymtl.ca>
+ * Copyright 2010-
+ * Oumarou Dicko <oumarou.dicko@polymtl.ca>
+ * Michael Sills-Lavoie <michael.sills-lavoie@polymtl.ca>
+ * Alexis Halle <alexis.halle@polymtl.ca>
+ *
+ * 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 LOWLEVEL_H
+#define LOWLEVEL_H
+
+#include "ust/ustconsumer.h"
+
+void finish_consuming_dead_subbuffer(struct ustconsumer_callbacks *callbacks, struct buffer_info *buf);
+size_t subbuffer_data_size(void *subbuf);
+
+#endif /* LOWLEVEL_H */
+