openarm_ros2/openarm_description/urdf/openarm.ros2_control.xacro

<?xml version="1.0"?>
<robot xmlns:xacro="http://www.ros.org/wiki/xacro">
    <xacro:macro name="openarm_ros2_control" params="name initial_positions_file prefix:='' can_device='can0'">
        <xacro:property name="initial_positions" value="${xacro.load_yaml(initial_positions_file)['initial_positions']}"/>

        <ros2_control name="${prefix}${name}" type="system">
            <hardware>
                <!-- By default, set up controllers for simulation. This won't work on real hardware -->
                <!-- <plugin>mock_components/GenericSystem</plugin> -->
                <plugin>openarm_hardware/OpenArmHW</plugin>
                <param name="prefix">${prefix}</param>
                <param name="can_device">${can_device}</param>
            </hardware>
            <joint name="${prefix}rev1">
                <command_interface name="position"/>
                <command_interface name="velocity"/>
                <command_interface name="effort"/>
                <state_interface name="position"/>
                <state_interface name="velocity"/>
                <state_interface name="effort"/>
            </joint>
            <joint name="${prefix}rev2">
                <command_interface name="position"/>
                <command_interface name="velocity"/>
                <command_interface name="effort"/>
                <state_interface name="position"/>
                <state_interface name="velocity"/>
                <state_interface name="effort"/>
            </joint>
            <joint name="${prefix}rev3">
                <command_interface name="position"/>
                <command_interface name="velocity"/>
                <command_interface name="effort"/>
                <state_interface name="position"/>
                <state_interface name="velocity"/>
                <state_interface name="effort"/>
            </joint>
            <joint name="${prefix}rev4">
                <command_interface name="position"/>
                <command_interface name="velocity"/>
                <command_interface name="effort"/>
                <state_interface name="position"/>
                <state_interface name="velocity"/>
                <state_interface name="effort"/>
            </joint>
            <joint name="${prefix}rev5">
                <command_interface name="position"/>
                <command_interface name="velocity"/>
                <command_interface name="effort"/>
                <state_interface name="position"/>
                <state_interface name="velocity"/>
                <state_interface name="effort"/>
            </joint>
            <joint name="${prefix}rev6">
                <command_interface name="position"/>
                <command_interface name="velocity"/>
                <command_interface name="effort"/>
                <state_interface name="position"/>
                <state_interface name="velocity"/>
                <state_interface name="effort"/>
            </joint>
            <joint name="${prefix}rev7">
                <command_interface name="position"/>
                <command_interface name="velocity"/>
                <command_interface name="effort"/>
                <state_interface name="position"/>
                <state_interface name="velocity"/>
                <state_interface name="effort"/>
            </joint>
            <joint name="${prefix}left_pris1">
                <command_interface name="position"/>
                <state_interface name="position"/>
                <state_interface name="velocity"/>
            </joint>

            <!-- <joint name="${prefix}right_pris2">
                <state_interface name="position">
                  <param name="initial_value">${initial_positions['right_pris2']}</param>
                </state_interface>
            </joint> -->

        </ros2_control>
    </xacro:macro>
</robot>