ass="parameter">path</span>
            <span class="types"><span class="type">string</span></span>
         The device object path as a string
        </li>
        <li><span class="parameter">volume_step</span>
            <span class="types"><span class="type">number</span></span>
         The volume step in % (defaults to 5)
         (<em>optional</em>)
        </li>
        <li><span class="parameter">volume_max</span>
            <span class="types"><span class="type">number</span></span>
         The