/*
    ChibiOS - Copyright (C) 2006..2016 Giovanni Di Sirio

    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.
*/

/**
 * @defgroup HAL HAL
 * @brief   Hardware Abstraction Layer.
 * @details Under ChibiOS the set of the various device driver interfaces
 * is called the HAL subsystem: Hardware Abstraction Layer. The HAL is the
 * abstract interface between ChibiOS applications and hardware.
 *
 * @section hal_peripheral interfaces HAL Peripheral Interfaces
 * These are a particular case of HAL Interfaces since they are an abstraction
 * of a hardware.
 */

/**
 * @defgroup HAL_ABSTRACT_PERIPHERALS Abstract Peripheral Interfaces
 * @brief   HAL Abstract Peripheral Interfaces.
 *
 * @ingroup HAL
 */
