drivers/usbhost/usbhost_registry.c

/****************************************************************************
 * drivers/usbhost/usbhost_registry.c
 *
 * Licensed to the Apache Software Foundation (ASF) under one or more
 * contributor license agreements.  See the NOTICE file distributed with
 * this work for additional information regarding copyright ownership.  The
 * ASF licenses this file to you 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.
 *
 ****************************************************************************/

/****************************************************************************
 * Included Files
 ****************************************************************************/

#include <nuttx/config.h>

#include <nuttx/usb/usbhost.h>

#include "usbhost_registry.h"

/****************************************************************************
 * Pre-processor Definitions
 ****************************************************************************/

/****************************************************************************
 * Private Types
 ****************************************************************************/

/****************************************************************************
 * Private Function Prototypes
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/****************************************************************************
 * Private Data
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/****************************************************************************
 * Public Data
 ****************************************************************************/

/* g_classregistry is a singly-linked list of class ID information added by
 * calls to usbhost_registerclass().  Since this list is accessed from USB
 * host controller interrupt handling logic, accesses to this list must be
 * protected by disabling interrupts.
 */

struct usbhost_registry_s *g_classregistry;

/****************************************************************************
 * Private Functions
 ****************************************************************************/

/****************************************************************************
 * Public Functions
 ****************************************************************************/