From 272663b2753c28ee8d459822c56a60b7eb4172d9 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?L=C3=A1szl=C3=B3=20Monda?= <laci@monda.hu>
Date: Wed, 12 Oct 2016 12:51:50 +0200
Subject: [PATCH] Add read-eeprom.js and write-eeprom.js

---
 usb/read-eeprom.js  | 37 +++++++++++++++++++++++++++++++++++++
 usb/write-eeprom.js | 43 +++++++++++++++++++++++++++++++++++++++++++
 2 files changed, 80 insertions(+)
 create mode 100755 usb/read-eeprom.js
 create mode 100755 usb/write-eeprom.js

diff --git a/usb/read-eeprom.js b/usb/read-eeprom.js
new file mode 100755
index 00000000..48d48b0f
--- /dev/null
+++ b/usb/read-eeprom.js
@@ -0,0 +1,37 @@
+#!/usr/bin/env node
+'use strict';
+
+var usb = require('usb');
+var util = require('./util');
+
+var vid = 0x16d3;
+var pid = 0x05ea;
+var readEepromCommandId = 6;
+
+var device = usb.findByIds(vid, pid);
+device.open();
+
+var usbInterface = device.interface(0);
+if (usbInterface.isKernelDriverActive()) {
+    usbInterface.detachKernelDriver();
+}
+usbInterface.claim();
+
+var endpointIn = usbInterface.endpoints[0];
+var endpointOut = usbInterface.endpoints[1];
+
+var payload = new Buffer([readEepromCommandId, 63, 0x00, 0x00]);
+console.log('Sending ', util.bufferToString(payload));
+endpointOut.transfer(payload, 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', util.bufferToString(receivedBuffer));
+    })
+});
diff --git a/usb/write-eeprom.js b/usb/write-eeprom.js
new file mode 100755
index 00000000..8db73e8e
--- /dev/null
+++ b/usb/write-eeprom.js
@@ -0,0 +1,43 @@
+#!/usr/bin/env node
+'use strict';
+
+var usb = require('usb');
+var util = require('./util');
+
+var vid = 0x16d3;
+var pid = 0x05ea;
+var writeEepromCommandId = 5;
+
+var device = usb.findByIds(vid, pid);
+device.open();
+
+var usbInterface = device.interface(0);
+if (usbInterface.isKernelDriverActive()) {
+    usbInterface.detachKernelDriver();
+}
+usbInterface.claim();
+
+var endpointIn = usbInterface.endpoints[0];
+var endpointOut = usbInterface.endpoints[1];
+var arg = process.argv[2] || '';
+
+if (arg.length === 0) {
+    console.log('Gotta specify a string to be written to the EEPROM as the argument of this script');
+    process.exit(1);
+}
+
+var payload = Buffer.concat([new Buffer([writeEepromCommandId, arg.length+2, 0x00, 0x00]), new Buffer(arg, 'utf8')]);
+console.log('Sending ', util.bufferToString(payload));
+endpointOut.transfer(payload, 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', util.bufferToString(receivedBuffer));
+    })
+});