From 92f9b40fc0f9d8ec37acba2e7fcdb8cf42b4c1d1 Mon Sep 17 00:00:00 2001
From: cTn <ctndesigner@gmail.com>
Date: Sun, 8 Jun 2014 20:26:28 +0200
Subject: [PATCH] implementing openDevice and claimInterface

---
 js/stm32dfu.js | 25 +++++++++++++++++++++++--
 1 file changed, 23 insertions(+), 2 deletions(-)

diff --git a/js/stm32dfu.js b/js/stm32dfu.js
index ce2c7e89..ea4874c7 100644
--- a/js/stm32dfu.js
+++ b/js/stm32dfu.js
@@ -58,15 +58,36 @@ var STM32DFU_protocol = function() {
 STM32DFU_protocol.prototype.connect = function(hex) {
     var self = this;
     self.hex = hex;
+
+    chrome.usb.getDevices(usbDevices.STM32DFU, function(result) {
+        if (result.length) {
+            console.log('USB DFU detected with ID: ' + result[0].device);
+
+            self.openDevice(result[0]);
+        } else {
+            // TODO: throw some error
+        }
+    });
 };
 
-STM32DFU_protocol.prototype.openDevice = function(callback) {
+STM32DFU_protocol.prototype.openDevice = function(device) {
+    var self = this;
+
+    chrome.usb.openDevice(device, function(handle) {
+        self.handle = handle;
+
+        console.log('Handle ID: ' + handle.handle);
+        self.claimInterface(0);
+    });
 };
 
 STM32DFU_protocol.prototype.closeDevice = function(callback) {
 };
 
-STM32DFU_protocol.prototype.claimInterface = function(callback) {
+STM32DFU_protocol.prototype.claimInterface = function(interfaceNumber) {
+    chrome.usb.claimInterface(this.handle, interfaceNumber, function claimed() {
+        console.log('Claimed interface: ' + interfaceNumber);
+    });
 };
 
 STM32DFU_protocol.prototype.releaseInterface = function(callback) {