device/serial/serial_device_enumerator_win.cc

   1 // Copyright 2014 The Chromium Authors. All rights reserved.
   2 // Use of this source code is governed by a BSD-style license that can be
   3 // found in the LICENSE file.
   4
   5 #include "device/serial/serial_device_enumerator_win.h"
   6
   7 #include <windows.h>
   8
   9 #include "base/memory/linked_ptr.h"
  10 #include "base/memory/scoped_ptr.h"
  11 #include "base/strings/string_util.h"
  12 #include "base/strings/stringprintf.h"
  13 #include "base/strings/utf_string_conversions.h"
  14 #include "base/win/registry.h"
  15
  16 namespace device {
  17
  18 // static
  19 scoped_ptr<SerialDeviceEnumerator> SerialDeviceEnumerator::Create() {
  20   return scoped_ptr<SerialDeviceEnumerator>(new SerialDeviceEnumeratorWin());
  21 }
  22
  23 SerialDeviceEnumeratorWin::SerialDeviceEnumeratorWin() {}
  24
  25 SerialDeviceEnumeratorWin::~SerialDeviceEnumeratorWin() {}
  26
  27 // TODO(rockot): Query the system for more information than just device paths.
  28 // This may or may not require using a different strategy than scanning the
  29 // registry location below.
  30 void SerialDeviceEnumeratorWin::GetDevices(SerialDeviceInfoList* devices) {
  31   devices->clear();
  32
  33   base::win::RegistryValueIterator iter_key(
  34       HKEY_LOCAL_MACHINE, L"HARDWARE\\DEVICEMAP\\SERIALCOMM\\");
  35   for (; iter_key.Valid(); ++iter_key) {
  36     base::string16 value(iter_key.Value());
  37     linked_ptr<SerialDeviceInfo> info(new SerialDeviceInfo);
  38     info->path = base::UTF16ToASCII(value);
  39     devices->push_back(info);
  40   }
  41 }
  42
  43 }  // namespace device