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// Copyright 2014 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#ifndef DEVICE_HID_HID_REPORT_DESCRIPTOR_H_
#define DEVICE_HID_HID_REPORT_DESCRIPTOR_H_
#include <stddef.h>
#include <stdint.h>
#include <vector>
#include "base/memory/linked_ptr.h"
#include "device/hid/hid_collection_info.h"
#include "device/hid/hid_report_descriptor_item.h"
namespace device {
// HID report descriptor.
// See section 6.2.2 of HID specifications (v1.11).
class HidReportDescriptor {
public:
HidReportDescriptor(const std::vector<uint8_t>& bytes);
~HidReportDescriptor();
const std::vector<linked_ptr<HidReportDescriptorItem> >& items() const {
return items_;
}
// Returns top-level collections present in the descriptor,
// together with max report sizes
void GetDetails(std::vector<HidCollectionInfo>* top_level_collections,
bool* has_report_id,
size_t* max_input_report_size,
size_t* max_output_report_size,
size_t* max_feature_report_size);
private:
std::vector<linked_ptr<HidReportDescriptorItem> > items_;
};
} // namespace device
#endif // DEVICE_HID_HID_REPORT_DESCRIPTOR_H_
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