diff --git a/src/dev_usb_freebsd.c b/src/dev_usb_freebsd.c
deleted file mode 100644
index af4c362..0000000
--- a/src/dev_usb_freebsd.c
+++ /dev/null
@@ -1,30 +0,0 @@
-/*
-spacenavd - a free software replacement driver for 6dof space-mice.
-Copyright (C) 2007-2012 John Tsiombikas <nuclear@member.fsf.org>
-
-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 3 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, see <http://www.gnu.org/licenses/>.
-*/
-#ifdef __FreeBSD__
-
-int open_dev_usb(struct device *dev, const char *path)
-{
-	return -1;	/* TODO */
-}
-
-const char *find_usb_device(void)
-{
-	return 0;	/* TODO */
-}
-
-#endif	/* __FreeBSD__ */
diff --git a/src/hotplug_freebsd.c b/src/dummy_usb.c
similarity index 65%
rename from src/hotplug_freebsd.c
rename to src/dummy_usb.c
index 12b053a..5c6becd 100644
--- a/src/hotplug_freebsd.c
+++ b/src/dummy_usb.c
@@ -15,10 +15,26 @@ 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, see <http://www.gnu.org/licenses/>.
 */
-#ifdef __FreeBSD__
+#if !defined(__linux__)
 
-/* TODO: implement */
+#include <stdio.h>
 
+static const char *message =
+	"Unfortunately this version of spacenavd does not support USB devices on your "
+	"platform yet. Make sure you are using the latest version of spacenavd.\n";
+
+const char *find_usb_device(void)
+{
+	fprintf(stderr, message);
+	return 0;
+}
+
+int open_dev_usb(struct device *dev, const char *path)
+{
+	return -1;
+}
+
+/* the hotplug functions will also be missing on unsupported platforms */
 int init_hotplug(void)
 {
 	return -1;
@@ -38,4 +54,4 @@ int handle_hotplug(void)
 	return -1;
 }
 
-#endif	/* __FreeBSD__ */
+#endif	/* unsupported platform */