Convert device::UsbConfigDescriptor and friends to structs.

device/usb/usb_descriptors.h

+// 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_USB_USB_DESCRIPTORS_H_
+#define DEVICE_USB_USB_DESCRIPTORS_H_
+
+#include <stdint.h>
+#include <vector>
+
+namespace device {
+
+enum UsbTransferType {
+  USB_TRANSFER_CONTROL = 0,
+  USB_TRANSFER_ISOCHRONOUS,
+  USB_TRANSFER_BULK,
+  USB_TRANSFER_INTERRUPT,
+};
+
+enum UsbEndpointDirection {
+  USB_DIRECTION_INBOUND = 0,
+  USB_DIRECTION_OUTBOUND,
+};
+
+enum UsbSynchronizationType {
+  USB_SYNCHRONIZATION_NONE = 0,
+  USB_SYNCHRONIZATION_ASYNCHRONOUS,
+  USB_SYNCHRONIZATION_ADAPTIVE,
+  USB_SYNCHRONIZATION_SYNCHRONOUS,
+};
+
+enum UsbUsageType {
+  USB_USAGE_DATA = 0,
+  USB_USAGE_FEEDBACK,
+  USB_USAGE_EXPLICIT_FEEDBACK
+};
+
+struct UsbEndpointDescriptor {
+  UsbEndpointDescriptor();
+  ~UsbEndpointDescriptor();
+
+  uint8_t address;
+  UsbEndpointDirection direction;
+  uint16_t maximum_packet_size;
+  UsbSynchronizationType synchronization_type;
+  UsbTransferType transfer_type;
+  UsbUsageType usage_type;
+  uint16_t polling_interval;
+  std::vector<uint8_t> extra_data;
+};
+
+struct UsbInterfaceDescriptor {
+  UsbInterfaceDescriptor();
+  ~UsbInterfaceDescriptor();
+
+  uint8_t interface_number;
+  uint8_t alternate_setting;
+  uint8_t interface_class;
+  uint8_t interface_subclass;
+  uint8_t interface_protocol;
+  std::vector<UsbEndpointDescriptor> endpoints;
+  std::vector<uint8_t> extra_data;
+};
+
+struct UsbConfigDescriptor {
+  UsbConfigDescriptor();
+  ~UsbConfigDescriptor();
+
+  uint8_t configuration_value;
+  bool self_powered;
+  bool remote_wakeup;
+  uint16_t maximum_power;
+  std::vector<UsbInterfaceDescriptor> interfaces;
+  std::vector<uint8_t> extra_data;
+};
+
+}  // namespace device
+
+#endif  // DEVICE_USB_USB_DESCRIPTORS_H_