hardware: fix voltage sensors reporting

As per linux sysfs documentation[1], the voltages reported by sysfs files
are in millivolts, not microvolts.

Thanks to Martin for discovering the bug.

[1]: https://github.com/torvalds/linux/blob/32b9a19a1966fb3124d7ddd60ebd08688be2f3fa/Documentation/ABI/testing/sysfs-class-hwmon#L70

Fixes: 97e5ea16
Change-Id: I1475388eb88d69a13b81b6f042c43f0b439d0732
diff --git a/src/ietf-hardware/IETFHardware.cpp b/src/ietf-hardware/IETFHardware.cpp
index 9a2edc0..c355934 100644
--- a/src/ietf-hardware/IETFHardware.cpp
+++ b/src/ietf-hardware/IETFHardware.cpp
@@ -186,14 +186,14 @@
 template <> const DataTree sysfsStaticData<SensorType::VoltageAC> = {
     {"class", "iana-hardware:sensor"},
     {"sensor-data/value-type", "volts-AC"},
-    {"sensor-data/value-scale", "micro"},
+    {"sensor-data/value-scale", "milli"},
     {"sensor-data/value-precision", "0"},
     {"sensor-data/oper-status", "ok"}
 };
 template <> const DataTree sysfsStaticData<SensorType::VoltageDC> = {
     {"class", "iana-hardware:sensor"},
     {"sensor-data/value-type", "volts-DC"},
-    {"sensor-data/value-scale", "micro"},
+    {"sensor-data/value-scale", "milli"},
     {"sensor-data/value-precision", "0"},
     {"sensor-data/oper-status", "ok"}
 };
diff --git a/tests/hardware_ietf-hardware.cpp b/tests/hardware_ietf-hardware.cpp
index bbcf647..60eeb40 100644
--- a/tests/hardware_ietf-hardware.cpp
+++ b/tests/hardware_ietf-hardware.cpp
@@ -173,14 +173,14 @@
             {"/ietf-hardware:hardware/component[name='ne:ctrl:voltage-in']/sensor-data/oper-status", "ok"},
             {"/ietf-hardware:hardware/component[name='ne:ctrl:voltage-in']/sensor-data/value", "220000"},
             {"/ietf-hardware:hardware/component[name='ne:ctrl:voltage-in']/sensor-data/value-precision", "0"},
-            {"/ietf-hardware:hardware/component[name='ne:ctrl:voltage-in']/sensor-data/value-scale", "micro"},
+            {"/ietf-hardware:hardware/component[name='ne:ctrl:voltage-in']/sensor-data/value-scale", "milli"},
             {"/ietf-hardware:hardware/component[name='ne:ctrl:voltage-in']/sensor-data/value-type", "volts-AC"},
             {"/ietf-hardware:hardware/component[name='ne:ctrl:voltage-out']/class", "iana-hardware:sensor"},
             {"/ietf-hardware:hardware/component[name='ne:ctrl:voltage-out']/parent", "ne:ctrl"},
             {"/ietf-hardware:hardware/component[name='ne:ctrl:voltage-out']/sensor-data/oper-status", "ok"},
             {"/ietf-hardware:hardware/component[name='ne:ctrl:voltage-out']/sensor-data/value", "12000"},
             {"/ietf-hardware:hardware/component[name='ne:ctrl:voltage-out']/sensor-data/value-precision", "0"},
-            {"/ietf-hardware:hardware/component[name='ne:ctrl:voltage-out']/sensor-data/value-scale", "micro"},
+            {"/ietf-hardware:hardware/component[name='ne:ctrl:voltage-out']/sensor-data/value-scale", "milli"},
             {"/ietf-hardware:hardware/component[name='ne:ctrl:voltage-out']/sensor-data/value-type", "volts-DC"},
 
             {"/ietf-hardware:hardware/component[name='ne:ctrl:current']/class", "iana-hardware:sensor"},
@@ -360,7 +360,7 @@
                 {"[name='ne:ctrl:voltage-in']/sensor-data/oper-status", "ok"},
                 {"[name='ne:ctrl:voltage-in']/sensor-data/value", "220000"},
                 {"[name='ne:ctrl:voltage-in']/sensor-data/value-precision", "0"},
-                {"[name='ne:ctrl:voltage-in']/sensor-data/value-scale", "micro"},
+                {"[name='ne:ctrl:voltage-in']/sensor-data/value-scale", "milli"},
                 {"[name='ne:ctrl:voltage-in']/sensor-data/value-type", "volts-AC"},
                 {"[name='ne:ctrl:voltage-out']", ""},
                 {"[name='ne:ctrl:voltage-out']/name", "ne:ctrl:voltage-out"},
@@ -370,7 +370,7 @@
                 {"[name='ne:ctrl:voltage-out']/sensor-data/oper-status", "ok"},
                 {"[name='ne:ctrl:voltage-out']/sensor-data/value", "12000"},
                 {"[name='ne:ctrl:voltage-out']/sensor-data/value-precision", "0"},
-                {"[name='ne:ctrl:voltage-out']/sensor-data/value-scale", "micro"},
+                {"[name='ne:ctrl:voltage-out']/sensor-data/value-scale", "milli"},
                 {"[name='ne:ctrl:voltage-out']/sensor-data/value-type", "volts-DC"},
 
                 {"[name='ne:ctrl:current']", ""},
@@ -574,21 +574,21 @@
                 {"/ietf-hardware:hardware/component[name='ne:psu:voltage-12V']/sensor-data/oper-status", "ok"},
                 {"/ietf-hardware:hardware/component[name='ne:psu:voltage-12V']/sensor-data/value", "0"},
                 {"/ietf-hardware:hardware/component[name='ne:psu:voltage-12V']/sensor-data/value-precision", "0"},
-                {"/ietf-hardware:hardware/component[name='ne:psu:voltage-12V']/sensor-data/value-scale", "micro"},
+                {"/ietf-hardware:hardware/component[name='ne:psu:voltage-12V']/sensor-data/value-scale", "milli"},
                 {"/ietf-hardware:hardware/component[name='ne:psu:voltage-12V']/sensor-data/value-type", "volts-DC"},
                 {"/ietf-hardware:hardware/component[name='ne:psu:voltage-5Vsb']/class", "iana-hardware:sensor"},
                 {"/ietf-hardware:hardware/component[name='ne:psu:voltage-5Vsb']/parent", "ne:psu"},
                 {"/ietf-hardware:hardware/component[name='ne:psu:voltage-5Vsb']/sensor-data/oper-status", "ok"},
                 {"/ietf-hardware:hardware/component[name='ne:psu:voltage-5Vsb']/sensor-data/value", "0"},
                 {"/ietf-hardware:hardware/component[name='ne:psu:voltage-5Vsb']/sensor-data/value-precision", "0"},
-                {"/ietf-hardware:hardware/component[name='ne:psu:voltage-5Vsb']/sensor-data/value-scale", "micro"},
+                {"/ietf-hardware:hardware/component[name='ne:psu:voltage-5Vsb']/sensor-data/value-scale", "milli"},
                 {"/ietf-hardware:hardware/component[name='ne:psu:voltage-5Vsb']/sensor-data/value-type", "volts-DC"},
                 {"/ietf-hardware:hardware/component[name='ne:psu:voltage-in']/class", "iana-hardware:sensor"},
                 {"/ietf-hardware:hardware/component[name='ne:psu:voltage-in']/parent", "ne:psu"},
                 {"/ietf-hardware:hardware/component[name='ne:psu:voltage-in']/sensor-data/oper-status", "ok"},
                 {"/ietf-hardware:hardware/component[name='ne:psu:voltage-in']/sensor-data/value", "0"},
                 {"/ietf-hardware:hardware/component[name='ne:psu:voltage-in']/sensor-data/value-precision", "0"},
-                {"/ietf-hardware:hardware/component[name='ne:psu:voltage-in']/sensor-data/value-scale", "micro"},
+                {"/ietf-hardware:hardware/component[name='ne:psu:voltage-in']/sensor-data/value-scale", "milli"},
                 {"/ietf-hardware:hardware/component[name='ne:psu:voltage-in']/sensor-data/value-type", "volts-AC"},
             };
             break;