diff --git a/src/simtrace2-discovery.h b/src/simtrace2-discovery.h
new file mode 100644
index 0000000..cfba956
--- /dev/null
+++ b/src/simtrace2-discovery.h
@@ -0,0 +1,26 @@
+/* simtrace2-discovery - host PC library to scan for matching USB
+ * devices
+ * 
+ * (C) 2016 by Harald Welte <hwelte@hmw-consulting.de>
+ *
+ * This program 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 2
+ * of the License, or (at your option) any later version.
+ *
+ * This program 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 this program; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
+ */
+#pragma once
+
+#include <stdint.h>
+#include <libusb.h>
+
+int get_usb_ep_addrs(libusb_device_handle *devh, unsigned int if_num,
+		     uint8_t *out, uint8_t *in, uint8_t *irq);