Get all the UsbConfigDescriptor for the device configuration

device/usb/usb_device.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_DEVICE_H_
 #define DEVICE_USB_USB_DEVICE_H_
 
+#include <vector>
+
 #include "base/basictypes.h"
 #include "base/callback.h"
 #include "base/memory/ref_counted.h"
 #include "base/strings/string16.h"
+#include "device/usb/usb_descriptors.h"
 
 namespace device {
 
 class UsbDeviceHandle;
-struct UsbConfigDescriptor;
 
 // A UsbDevice object represents a detected USB device, providing basic
 // information about it. Methods other than simple property accessors must be
 // called from the thread on which this object was created. For further
 // manipulation of the device, a UsbDeviceHandle must be created from Open()
 // method.
 class UsbDevice : public base::RefCountedThreadSafe<UsbDevice> {
  public:
   using OpenCallback = base::Callback<void(scoped_refptr<UsbDeviceHandle>)>;
   using ResultCallback = base::Callback<void(bool success)>;
@@ skipping 18 matching lines @@
 
   // Creates a UsbDeviceHandle for further manipulation.
   virtual void Open(const OpenCallback& callback) = 0;
 
   // Explicitly closes a device handle. This method will be automatically called
   // by the destructor of a UsbDeviceHandle as well.
   virtual bool Close(scoped_refptr<UsbDeviceHandle> handle) = 0;
 
   // Gets the UsbConfigDescriptor for the active device configuration or nullptr
   // if the device is unconfigured.
-  virtual const UsbConfigDescriptor* GetConfiguration() = 0;
+  virtual const UsbConfigDescriptor* GetActiveConfiguration() = 0;
+
+  // Gets all the UsbConfigDescriptor for the device configuration.

[Reilly Grant (use Gerrit), 2015/08/03 18:04:04]

"Gets all of the device's UsbConfigDescriptors."

[juncai, 2015/08/03 21:56:25]

Done.

+  const std::vector<UsbConfigDescriptor>& configurations() {
+    return configurations_;
+  }
 
  protected:
   UsbDevice(uint16 vendor_id,
             uint16 product_id,
             const base::string16& manufacturer_string,
             const base::string16& product_string,
             const base::string16& serial_number);
   virtual ~UsbDevice();
 
   // These members must be mutable by subclasses as necessary during device
   // enumeration. To preserve the thread safety of this object they must remain
   // constant afterwards.
   base::string16 manufacturer_string_;
   base::string16 product_string_;
   base::string16 serial_number_;
 
+  // The device's all configuration descriptors.

[Reilly Grant (use Gerrit), 2015/08/03 18:04:04]

"All of the device's configuration descriptors."

[juncai, 2015/08/03 21:56:25]

Done.

+  std::vector<UsbConfigDescriptor> configurations_;
+
  private:
   friend class base::RefCountedThreadSafe<UsbDevice>;
 
   const std::string guid_;
   const uint16 vendor_id_;
   const uint16 product_id_;
 
   DISALLOW_COPY_AND_ASSIGN(UsbDevice);
 };
 
 }  // namespace device
 
 #endif  // DEVICE_USB_USB_DEVICE_H_