3 files changed, 11 insertions, 4 deletions
diff --git a/scripts/sensor-example.yaml b/scripts/sensor-example.yaml
index db0e694..06c8836 100755
--- a/scripts/sensor-example.yaml
+++ b/scripts/sensor-example.yaml
@@ -100,6 +100,11 @@
   multiplierM: 511
   offsetB: 0
   bExp: 0
+  # Result exponent field in Type 1 SDR(2's complement, signed)
+  rExp: 0
+  # Applies for analog sensors, the actual reading value for the sensor is
+  # Value * 10^N
+  scale: -3
   mutability: Mutability::Write|Mutability::Read
   serviceInterface: org.freedesktop.DBus.Properties
   readingType: readingData
diff --git a/scripts/writesensor.mako.cpp b/scripts/writesensor.mako.cpp
index 4644ff7..a59e149 100644
--- a/scripts/writesensor.mako.cpp
+++ b/scripts/writesensor.mako.cpp
@@ -45,6 +45,7 @@ extern const IdInfoMap sensors = {
        multiplier = sensor.get("multiplierM", 1)
        offsetB = sensor.get("offsetB", 0)
        exp = sensor.get("bExp", 0)
+       rExp = sensor.get("rExp", 0)
        unit = sensor.get("unit", "")
        scale = sensor.get("scale", 0)
        hasScale = "true" if "scale" in sensor.keys() else "false"
@@ -68,8 +69,8 @@ extern const IdInfoMap sensors = {
        mutability = sensor.get("mutability", "Mutability::Read")
 %>
         ${entityID},${instance},${sensorType},"${path}","${sensorInterface}",
-        ${readingType},${multiplier}, ${offsetB},${exp},
-        ${offsetB * pow(10,exp)}, ${hasScale},${scale},"${unit}",
+        ${readingType},${multiplier},${offsetB},${exp},
+        ${offsetB * pow(10,exp)}, ${rExp}, ${hasScale},${scale},"${unit}",
         ${updateFunc},${getFunc},Mutability(${mutability}),${sensorNameFunc},{
     % for interface,properties in interfaces.items():
             {"${interface}",{
diff --git a/types.hpp b/types.hpp
index 61f3d68..e77dc8e 100644
--- a/types.hpp
+++ b/types.hpp
@@ -115,8 +115,8 @@ using InstancePath = std::string;
 using Type = uint8_t;
 using ReadingType = uint8_t;
 using Multiplier = uint16_t;
-using OffsetB = uint16_t;
-using Exponent = uint8_t;
+using OffsetB = int16_t;
+using Exponent = int8_t;
 using ScaledOffset = int64_t;
 using Scale = int16_t;
 using Unit = std::string;
@@ -154,6 +154,7 @@ struct Info
    OffsetB coefficientB;
    Exponent exponentB;
    ScaledOffset scaledOffset;
+   Exponent exponentR;
    bool hasScale;
    Scale scale;
    Unit unit;