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+/* -*- c++ -*- */
+/*
+ * Copyright 2003 Free Software Foundation, Inc.
+ *
+ * This file is part of GNU Radio
+ *
+ * GNU Radio is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 3, or (at your option)
+ * any later version.
+ *
+ * GNU Radio 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 General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with GNU Radio; see the file COPYING. If not, write to
+ * the Free Software Foundation, Inc., 51 Franklin Street,
+ * Boston, MA 02110-1301, USA.
+ */
+
+#ifndef _USRP_INTERFACES_H_
+#define _USRP_INTERFACES_H_
+
+/*
+ * We've now split the USRP into 3 separate interfaces.
+ *
+ * Interface 0 contains only ep0 and is used for command and status.
+ * Interface 1 is the Tx path and it uses ep2 OUT BULK.
+ * Interface 2 is the Rx path and it uses ep6 IN BULK.
+ */
+
+#define USRP_CMD_INTERFACE 0
+#define USRP_CMD_ALTINTERFACE 0
+#define USRP_CMD_ENDPOINT 0
+
+#define USRP_TX_INTERFACE 1
+#define USRP_TX_ALTINTERFACE 0
+#define USRP_TX_ENDPOINT 2 // streaming data from host to FPGA
+
+#define USRP_RX_INTERFACE 2
+#define USRP_RX_ALTINTERFACE 0
+#define USRP_RX_ENDPOINT 6 // streaming data from FPGA to host
+
+
+#endif /* _USRP_INTERFACES_H_ */