1. Add some Comments

2. small tweaks
kirkoman · Nov 28, 2018 · 2979926 · 2979926
1 parent e4be0cf
commit 2979926
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Showing 4 changed files with 6 additions and 3 deletions.
diff --git a/src/context.cpp b/src/context.cpp
@@ -505,7 +505,8 @@ namespace librealsense
                     auto&& backend = ctx->get_backend();
                     auto device_serial = backend.get_device_serial(vid, pid, unique_id);
 
-                    if ((hid.unique_id == unique_id) || ((hid.unique_id == "*") && (hid.serial_number == device_serial)))
+                    if ((hid.unique_id == unique_id) || // Linux check
+                        ((hid.unique_id == "*") && (hid.serial_number == device_serial))) // Windows check
                     {
                         hid_group.push_back(hid);
                     }

diff --git a/src/ds5/ds5-motion.cpp b/src/ds5/ds5-motion.cpp
@@ -178,7 +178,7 @@ namespace librealsense
 
         static const char* custom_sensor_fw_ver = "5.6.0.0";
 
-        auto hid_ep = std::make_shared<ds5_hid_sensor>(this, ctx->get_backend().create_hid_device(all_hid_infos[1]),
+        auto hid_ep = std::make_shared<ds5_hid_sensor>(this, ctx->get_backend().create_hid_device(all_hid_infos.front()),
                                                         std::unique_ptr<frame_timestamp_reader>(new ds5_iio_hid_timestamp_reader()),
                                                         std::unique_ptr<frame_timestamp_reader>(new ds5_custom_hid_timestamp_reader()),
                                                         fps_and_sampling_frequency_per_rs2_stream,

diff --git a/src/types.h b/src/types.h
@@ -51,8 +51,10 @@ namespace librealsense
     const double TIMESTAMP_NSEC_TO_MSEC = 0.000001;
 
 #ifdef _WIN32
+/* The FW timestamps for HID are converted to Usec in Windows kernel */
 #define HID_TIMESTAMP_MULTIPLIER TIMESTAMP_USEC_TO_MSEC
 #else
+/* The FW timestamps for HID are converted to Nanosec in Linux kernel */
 #define HID_TIMESTAMP_MULTIPLIER TIMESTAMP_NSEC_TO_MSEC
 #endif // define HID_TIMESTAMP_MULTIPLIER
 

diff --git a/src/win/win-backend.cpp b/src/win/win-backend.cpp
@@ -23,7 +23,7 @@ namespace librealsense
     {
         wmf_backend::wmf_backend()
         {
-            CoInitializeEx(nullptr, COINIT_MULTITHREADED); // when using COINIT_APARTMENTTHREADED, calling _pISensor->SetEventSink(NULL) to stop sensor takes too much time
+            CoInitializeEx(nullptr, COINIT_MULTITHREADED); // when using COINIT_APARTMENTTHREADED, calling _pISensor->SetEventSink(NULL) to stop sensor can take several seconds
             MFStartup(MF_VERSION, MFSTARTUP_NOSOCKET);
         }