#ifndef __LINUX_TPM_COMMAND_H__
  #define __LINUX_TPM_COMMAND_H__
  
  /*
   * TPM Command constants from specifications at
   * http://www.trustedcomputinggroup.org
   */
  
  /* Command TAGS */
  #define TPM_TAG_RQU_COMMAND             193
  #define TPM_TAG_RQU_AUTH1_COMMAND       194
  #define TPM_TAG_RQU_AUTH2_COMMAND       195
  #define TPM_TAG_RSP_COMMAND             196
  #define TPM_TAG_RSP_AUTH1_COMMAND       197
  #define TPM_TAG_RSP_AUTH2_COMMAND       198
  
  /* Command Ordinals */
  #define TPM_ORD_GETRANDOM               70
  #define TPM_ORD_OSAP                    11
  #define TPM_ORD_OIAP                    10
  #define TPM_ORD_SEAL                    23
  #define TPM_ORD_UNSEAL                  24
  
  /* Other constants */
  #define SRKHANDLE                       0x40000000
  #define TPM_NONCE_SIZE                  20
  
  #endif