From 07af142718bb67ef428ebea351564644e9ebc2ad Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?L=C3=A1szl=C3=B3=20Monda?= <laci@monda.hu>
Date: Mon, 26 Sep 2016 23:36:36 +0200
Subject: [PATCH] Transfer the actual payload to be sent. Read and display
 response.

---
 usb/blink-test-led.js | 10 ++++++++--
 1 file changed, 8 insertions(+), 2 deletions(-)

diff --git a/usb/blink-test-led.js b/usb/blink-test-led.js
index bef0fcf6..1ede9997 100755
--- a/usb/blink-test-led.js
+++ b/usb/blink-test-led.js
@@ -22,13 +22,19 @@ var endpointOut = usbInterface.endpoints[1];
 var state = 1;
 
 setInterval(function() {
-    console.log('Sending ', state);
     state = state ? 0 : 1
-    console.log(state)
+    console.log('Sending ', state);
     endpointOut.transfer(new Buffer([test_led_command_id, state]), function(err) {
         if (err) {
             console.error("USB error: %s", err);
             process.exit(1);
         }
+        endpointIn.transfer(64, function(err2, receivedBuffer) {
+            if (err2) {
+                console.error("USB error: %s", err2);
+                process.exit(2);
+            }
+            console.log('Received', receivedBuffer, receivedBuffer.length);
+        })
     });
 }, 500)