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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 const char vid[] = "vid_"; // Also contains '\0'. | |
19 const size_t vid_location = device.id.find(vid); | |
20 if (vid_location == std::string::npos || | |
21 vid_location + sizeof(vid) - 1 + id_size > device.id.size()) { | |
22 return false; | |
23 } | |
24 const char pid[] = "pid_"; | |
25 const size_t pid_location = device.id.find(pid); | |
26 if (pid_location == std::string::npos || | |
27 pid_location + sizeof(pid) - 1 + id_size > device.id.size()) { | |
28 return false; | |
29 } | |
30 std::string id_vendor = device.id.substr(vid_location + sizeof(vid) - 1, | |
31 id_size); | |
32 std::string id_product = device.id.substr(pid_location + sizeof(pid) -1, | |
33 id_size); | |
34 usb_id->clear(); | |
35 usb_id->append(id_vendor); | |
36 usb_id->append(":"); | |
37 usb_id->append(id_product); | |
38 return true; | |
39 } | |
40 | |
41 bool GetUsbVersion(const Device& device, std::string* usb_version) { | |
42 return false; | |
43 } | |
44 | |
45 } // namespace cricket | |
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