href="#idl-def-MIDIPortConnectionState.open">"open"</a></code>

(e.g. open() has already been called on this MIDIPort, or the

port has been implicitly opened), jump to the step labeled

<li><p>If the device's state is <code><a

href="#idl-def-MIDIPortConnectionState.pending">"pending"</a></code>

(i.e. the connection had been opened and the device was

subsequently disconnected), jump to the step labeled

<li><p>If the device's state is <code><a

href="#idl-def-MIDIPortDeviceState.disconnected">"disconnected"</a></code>,

handler of the <code><a>MIDIAccess</a></code> and to the

<code><a href="#event-midiport-statechange">statechange</a></code>

handler of the <code><a href="#idl-def-MIDIPort">MIDIPort</a></code>

<li><p>Attempt to obtain access to the given MIDI device in the

system. If the device is unavailable (e.g. is already in use by another

process and cannot be opened, or is disconnected), jump to the step labeled

obtained, continue the following steps.</p></li>

<code>"opened"</code>, and enqueue a new <code><a>MIDIConnectionEvent</a></code>

to the <code><a href="#event-midiaccess-statechange">statechange</a></code>

handler of the <code><a>MIDIAccess</a></code> and to the

that is waiting to be sent, asynchronously begin sending that

data.</p></li>

<code>accept(value)</code> method with <var>port</var> as

value argument.</p></li>

<li><p>Terminate these steps.</p></li>

<li><p><em><b>failure</b></em>: Let <var>error</var> be a new

<code><a>DOMException</a></code>. This exception's .name should be

<li><p>Call <var>resolver</var>'s <code>reject(value)</code> method

with <var>error</var> as value argument.</p></li>