Initial driver registration mechanism

Also added the basis of the upekts driver, which is the first I'll
implement.

libfprint/drivers/upekts.c

@@ -0,0 +1,32 @@
+/*
+ * UPEK TouchStrip driver for libfprint
+ * Copyright (C) 2007 Daniel Drake <dsd@gentoo.org>
+ *
+ * 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
+ */
+
+#include <fp_internal.h>
+
+static const struct usb_id id_table[] = {
+	{ .vendor = 0x0483, .product = 0x2016 },
+	{ 0 }, /* terminating entry */
+};
+
+const struct fp_driver upekts_driver = {
+	.name = "upekts",
+	.full_name = "UPEK TouchStrip",
+	.id_table = id_table,
+};
+