text: // Copyright 2015-2016 Espressif Systems (Shanghai) PTE LTD
  //
  // Licensed under the Apache License, Version 2.0 (the "License");
  // you may not use this file except in compliance with the License.
  // You may obtain a copy of the License at
  //     http://www.apache.org/licenses/LICENSE-2.0
  //
  // Unless required by applicable law or agreed to in writing, software
  // distributed under the License is distributed on an "AS IS" BASIS,
  // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  // See the License for the specific language governing permissions and
  // limitations under the License.
  
  #ifndef _crc32_H_
  #define _crc32_H_
  
  /**
  * @brief This class is used to access crc32 module
  *
  */
  class crc32
  {
  public:
      static unsigned int crc32_le(unsigned int crc, unsigned char const *buf, unsigned int len);
  };
  #endif // _crc32_H_
  