Add note about (this.versionReceived || first === REPORT_VERSION) c…

…ondition
firmata · Mar 13, 2016 · 061e2c4 · 061e2c4
1 parent fc8514a
commit 061e2c4
Showing 1 changed file with 2 additions and 0 deletions.
diff --git a/lib/firmata.js b/lib/firmata.js
@@ -604,6 +604,8 @@ function Board(port, options, callback) {
           if (MIDI_RESPONSE[response]) {
             // It's ok that this.versionReceived will be set to
             // true every time a valid MIDI_RESPONSE is received.
+            // This condition is necessary to ensure that REPORT_VERSION
+            // is called first.
             if (this.versionReceived || first === REPORT_VERSION) {
               this.versionReceived = true;
               MIDI_RESPONSE[response](this);