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add union param types for int32/uint32 #516

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3a918e8
common,standard: add byte-wise union param types for lossless int32 p…
tridge Jul 15, 2026
cc75edf
pymavlink: submodule update for byte-wise union param types
tridge Jul 15, 2026
bddfa43
common: sync MAV_PARAM_ERROR type entries from upstream
tridge Jul 15, 2026
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12 changes: 12 additions & 0 deletions message_definitions/v1.0/common.xml
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Original file line number Diff line number Diff line change
Expand Up @@ -2747,6 +2747,12 @@
<entry value="10" name="MAV_PARAM_TYPE_REAL64">
<description>64-bit floating-point</description>
</entry>
<entry value="11" name="MAV_PARAM_TYPE_UNION_INT32">
<description>32-bit signed integer carried byte-wise in the param_value field.</description>
</entry>
<entry value="12" name="MAV_PARAM_TYPE_UNION_UINT32">
<description>32-bit unsigned integer carried byte-wise in the param_value field.</description>
</entry>
</enum>
<enum name="MAV_PARAM_ERROR">
<wip/>
Expand All @@ -2770,6 +2776,12 @@
<entry value="5" name="MAV_PARAM_ERROR_READ_ONLY">
<description>Parameter is read-only</description>
</entry>
<entry value="6" name="MAV_PARAM_ERROR_TYPE_UNSUPPORTED">
<description>Parameter data type (MAV_PARAM_TYPE) is not supported by flight stack (at all)</description>
</entry>
<entry value="7" name="MAV_PARAM_ERROR_TYPE_MISMATCH">
<description>Parameter type does not match expected type</description>
</entry>
</enum>
<enum name="MAV_PARAM_EXT_TYPE">
<description>Specifies the datatype of a MAVLink extended parameter.</description>
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3 changes: 3 additions & 0 deletions message_definitions/v1.0/standard.xml
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Original file line number Diff line number Diff line change
Expand Up @@ -90,6 +90,9 @@
<wip/>
<description>Autopilot has a connected gripper. MAVLink Grippers would set MAV_TYPE_GRIPPER instead.</description>
</entry>
<entry value="2097152" name="MAV_PROTOCOL_CAPABILITY_PARAM_UNION_INT32">
<description>Component accepts PARAM_SET and emits PARAM_VALUE with the byte-wise MAV_PARAM_TYPE_UNION_INT32/MAV_PARAM_TYPE_UNION_UINT32 types for lossless transport of 32-bit integer parameter values that are not exactly representable as a 32-bit float. Only meaningful in combination with MAV_PROTOCOL_CAPABILITY_PARAM_ENCODE_C_CAST: byte-wise encoded systems are already lossless. Ground stations should should send the union types to a component that does not advertise this capability.</description>
</entry>
</enum>
<enum name="FIRMWARE_VERSION_TYPE">
<description>These values define the type of firmware release. These values indicate the first version or release of this type. For example the first alpha release would be 64, the second would be 65.</description>
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2 changes: 1 addition & 1 deletion pymavlink
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Submodule pymavlink updated from ec0683 to c065f0
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