--- /dev/null
+/** @file\r
+Definition for Pcal9555 I2c IO Expander.\r
+\r
+Copyright (c) 2013-2015 Intel Corporation.\r
+\r
+This program and the accompanying materials\r
+are licensed and made available under the terms and conditions of the BSD License\r
+which accompanies this distribution. The full text of the license may be found at\r
+http://opensource.org/licenses/bsd-license.php\r
+\r
+THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,\r
+WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.\r
+\r
+\r
+**/\r
+\r
+#ifndef __PCAL9555_H__\r
+#define __PCAL9555_H__\r
+\r
+#define PCAL9555_REG_IN_PORT0 0x00\r
+#define PCAL9555_REG_IN_PORT1 0x01\r
+#define PCAL9555_REG_OUT_PORT0 0x02\r
+#define PCAL9555_REG_OUT_PORT1 0x03\r
+#define PCAL9555_REG_CFG_PORT0 0x06\r
+#define PCAL9555_REG_CFG_PORT1 0x07\r
+\r
+#define PCAL9555_REG_PULL_EN_PORT0 0x46\r
+#define PCAL9555_REG_PULL_EN_PORT1 0x47\r
+\r
+#endif\r