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1 /* | |
2 * Copyright (c) 2012 The WebRTC project authors. All Rights Reserved. | |
3 * | |
4 * Use of this source code is governed by a BSD-style license | |
5 * that can be found in the LICENSE file in the root of the source | |
6 * tree. An additional intellectual property rights grant can be found | |
7 * in the file PATENTS. All contributing project authors may | |
8 * be found in the AUTHORS file in the root of the source tree. | |
9 */ | |
10 | |
11 #include "webrtc/media/devices/deviceinfo.h" | |
12 | |
13 namespace cricket { | |
14 | |
15 bool GetUsbId(const Device& device, std::string* usb_id) { | |
16 // Both PID and VID are 4 characters. | |
17 const int id_size = 4; | |
18 if (device.id.size() < 2 * id_size) { | |
19 return false; | |
20 } | |
21 | |
22 // The last characters of device id is a concatenation of VID and then PID. | |
23 const size_t vid_location = device.id.size() - 2 * id_size; | |
24 std::string id_vendor = device.id.substr(vid_location, id_size); | |
25 const size_t pid_location = device.id.size() - id_size; | |
26 std::string id_product = device.id.substr(pid_location, id_size); | |
27 | |
28 usb_id->clear(); | |
29 usb_id->append(id_vendor); | |
30 usb_id->append(":"); | |
31 usb_id->append(id_product); | |
32 return true; | |
33 } | |
34 | |
35 bool GetUsbVersion(const Device& device, std::string* usb_version) { | |
36 return false; | |
37 } | |
38 | |
39 } // namespace cricket | |
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