diff --git a/util/msrtool/cs5536.c b/util/msrtool/cs5536.c
new file mode 100644
index 0000000..d441891
--- /dev/null
+++ b/util/msrtool/cs5536.c
@@ -0,0 +1,29 @@
+/*
+ * This file is part of msrtool.
+ *
+ * Copyright (c) 2008 Peter Stuge <peter@stuge.se>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ *
+ * 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 St, Fifth Floor, Boston, MA  02110-1301 USA
+ */
+
+#include "msrtool.h"
+
+int cs5536_probe(const struct targetdef *target) {
+	/* TODO: PCI 1022:2090 */
+	return 0;
+}
+
+const struct msrdef cs5536_msrs[] = {
+	{ MSR_EOT }
+};