From 91232e93ef5346d75352cfe43b334df0e7fe6a9c Mon Sep 17 00:00:00 2001
From: aangerma <avishag.angerman@intel.com>
Date: Wed, 31 Jul 2019 12:59:19 +0300
Subject: [PATCH 1/3] Save serial_number on sensor info in lower case.

---
 src/mf/mf-hid.cpp | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/src/mf/mf-hid.cpp b/src/mf/mf-hid.cpp
index 1cc606c88c..e69fcb6fcb 100644
--- a/src/mf/mf-hid.cpp
+++ b/src/mf/mf-hid.cpp
@@ -24,6 +24,7 @@
 #include <initguid.h>
 #include <propkeydef.h>
 #include <comutil.h>
+#include <string>
 
 #pragma comment(lib, "Sensorsapi.lib")
 #pragma comment(lib, "PortableDeviceGuids.lib")
@@ -443,7 +444,9 @@ namespace librealsense
                                             }
                                             if (IsEqualPropertyKey(propertyKey, SENSOR_PROPERTY_SERIAL_NUMBER))
                                             {
-                                                info.serial_number = std::string(propertyValue.pwszVal, propertyValue.pwszVal + wcslen(propertyValue.pwszVal));
+                                                auto str = std::string(propertyValue.pwszVal, propertyValue.pwszVal + wcslen(propertyValue.pwszVal));
+                                                std::transform(begin(str), end(str), begin(str), ::tolower);
+                                                info.serial_number = str;
                                             }
                                         }
 

From 8ba722ca399a06f3ad31ce35ea9dc1b4b1c591ff Mon Sep 17 00:00:00 2001
From: aangerma <avishag.angerman@intel.com>
Date: Thu, 1 Aug 2019 11:28:34 +0300
Subject: [PATCH 2/3] 1. Change the default values of ZO filter

2. Disable by default all the filters except zo.
---
 common/model-views.cpp | 23 ++++++++++++++++++++---
 src/proc/zero-order.h  |  4 ++--
 2 files changed, 22 insertions(+), 5 deletions(-)

diff --git a/common/model-views.cpp b/common/model-views.cpp
index 59cb512ea7..b3c29b9796 100644
--- a/common/model-views.cpp
+++ b/common/model-views.cpp
@@ -926,6 +926,17 @@ namespace rs2
         }
         catch (...) {}
 
+        auto filters = s->get_recommended_filters();
+        
+        auto it  = std::find_if(filters.begin(), filters.end(), [&](const filter &f)
+        {
+            if (f.is<zero_order_invalidation>())
+                return true;
+            return false;
+        });
+
+        auto is_zo = it != filters.end();
+
         for (auto&& f : s->get_recommended_filters())
         {
             auto shared_filter = std::make_shared<filter>(f);
@@ -936,12 +947,18 @@ namespace rs2
             //if (shared_filter->is<disparity_transform>())
                // model->visible = false;
 
-            if (shared_filter->is<zero_order_invalidation>())
+            if (is_zo)
             {
-                zero_order_artifact_fix = model;
-                viewer.zo_sensors++;
+                if (shared_filter->is<zero_order_invalidation>())
+                {
+                    zero_order_artifact_fix = model;
+                    viewer.zo_sensors++;
+                }
+                else
+                    model->enabled = false;
             }
 
+
             if (shared_filter->is<hole_filling_filter>())
                 model->enabled = false;
 
diff --git a/src/proc/zero-order.h b/src/proc/zero-order.h
index e3c8882d31..02d5ea0cc0 100644
--- a/src/proc/zero-order.h
+++ b/src/proc/zero-order.h
@@ -8,8 +8,8 @@
 #include "option.h"
 #include "l500/l500-private.h"
 
-#define IR_THRESHOLD 115
-#define RTD_THRESHOLD 200
+#define IR_THRESHOLD 120
+#define RTD_THRESHOLD 50
 #define BASELINE -10
 #define PATCH_SIZE 5
 #define Z_MAX_VALUE 1200

From 8e23141d81c3aadbf51a0416db9fba3f6d65312e Mon Sep 17 00:00:00 2001
From: aangerma <avishag.angerman@intel.com>
Date: Thu, 1 Aug 2019 15:09:44 +0300
Subject: [PATCH 3/3] Enfore imu only on l515

---
 src/l500/l500-factory.cpp | 11 ++++++-----
 1 file changed, 6 insertions(+), 5 deletions(-)

diff --git a/src/l500/l500-factory.cpp b/src/l500/l500-factory.cpp
index 000b13032f..c92411b2fe 100644
--- a/src/l500/l500-factory.cpp
+++ b/src/l500/l500-factory.cpp
@@ -106,13 +106,14 @@ namespace librealsense
                 if (!ivcam2::try_fetch_usb_device(group.usb_devices, depth, hwm))
                     LOG_WARNING("try_fetch_usb_device(...) failed.");
 
-                if (g.second.size() < 2)
-                {
-                    LOG_WARNING("L500 partial enum: " << g.second.size() << " HID devices were recognized (2+ expected)");
+                if(g.first[0].pid != L500_PID)
+                    if (g.second.size() < 2)
+                    {
+                        LOG_WARNING("L500 partial enum: " << g.second.size() << " HID devices were recognized (2+ expected)");
 #if !defined(ANDROID) && !defined(__APPLE__) // Not supported by android & macos
-                    continue;
+                        continue;
 #endif // Not supported by android & macos
-                }
+                    }
 
                 auto info = std::make_shared<l500_info>(ctx, g.first, hwm, g.second);
                 chosen.push_back(depth);