diff --git a/include/km_main.h b/include/km_main.h
new file mode 100644
index 0000000..48794a3
--- /dev/null
+++ b/include/km_main.h
@@ -0,0 +1,99 @@
+/*
+ * Copyright (c) 2015, The Linux Foundation. All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are
+ * met:
+ *  * Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ *  * Redistributions in binary form must reproduce the above
+ *    copyright notice, this list of conditions and the following
+ *    disclaimer in the documentation and/or other materials provided
+ *    with the distribution.
+ *  * Neither the name of The Linux Foundation nor the names of its
+ *    contributors may be used to endorse or promote products derived
+ *    from this software without specific prior written permission.
+
+ * THIS SOFTWARE IS PROVIDED "AS IS" AND ANY EXPRESS OR IMPLIED
+ * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
+ * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS
+ * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+ * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+ * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR
+ * BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
+ * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE
+ * OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN
+ * IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#ifndef KM_MAIN_H
+#define KM_MAIN_H
+
+#include <sys/types.h>
+/**
+ * Commands supported
+ */
+#define KEYMASTER_CMD_ID  0x100UL
+#define KEYMASTER_UTILS_CMD_ID  0x200UL
+
+#define UINT32_MAX  (0xffffffff)
+
+typedef enum {
+    /*
+     * List the commands supportedin by the hardware.
+     */
+    KEYMASTER_READ_LK_DEVICE_STATE			= (KEYMASTER_UTILS_CMD_ID + 2UL),
+    KEYMASTER_WRITE_LK_DEVICE_STATE			= (KEYMASTER_UTILS_CMD_ID + 3UL),
+    KEYMASTER_MILESTONE_CALL				= (KEYMASTER_UTILS_CMD_ID + 4UL),
+
+    KEYMASTER_LAST_CMD_ENTRY				= (int)0xFFFFFFFFULL
+} keymaster_cmd_t;
+
+
+/*
+ * Utils Api struct
+ */
+
+/**
+  @brief
+    Data structure
+
+  @param[in]   cmd_id      Requested command
+  @param[in]   data        information (could be data or a pointer to the memory that holds the data
+  @param[in]   len         if data is ptr to some buffer, len indicates length of the buffer
+*/
+typedef struct send_cmd{
+	uint32 cmd_id;
+	uint32 data;
+	uint32 len;
+} __attribute__ ((packed)) send_cmd_t;
+
+/*
+typedef struct send_cmd_rsp{
+	uint32 cmd_id;
+	uint32 data;
+	int32 status;
+}  __attribute__ ((packed)) send_cmd_rsp_t; */
+
+/**
+  @brief
+    Data structure
+
+  @param[in]   cmd_id      Requested command
+*/
+typedef struct _km_set_milestone_req_t {
+	uint32 cmd_id;
+}__attribute__ ((packed)) km_set_milestone_req_t;
+
+/**
+  @brief
+    Data structure
+
+  @param[out]   status      Status of the request
+*/
+typedef struct _km_set_milestone_rsp_t {
+	int status;
+}__attribute__ ((packed)) km_set_milestone_rsp_t;
+
+#endif /* KM_MAIN_H */