From 45096b7050d2b5e0bd56848a34a306348d5e459e Mon Sep 17 00:00:00 2001
From: PSVM-J <39494832+PSVM-J@users.noreply.github.com>
Date: Tue, 7 Aug 2018 20:11:05 +0300
Subject: [PATCH] add i2c_hub module

---
 modules/@amperka/i2c-hub.js | 24 ++++++++++++++++++++++++
 1 file changed, 24 insertions(+)
 create mode 100644 modules/@amperka/i2c-hub.js

diff --git a/modules/@amperka/i2c-hub.js b/modules/@amperka/i2c-hub.js
new file mode 100644
index 0000000..85330e4
--- /dev/null
+++ b/modules/@amperka/i2c-hub.js
@@ -0,0 +1,24 @@
+function TroykaI2CHub(opts) {
+  opts = opts || {}
+  var _channel = 0;
+  var _address = opts.address || 0x70;
+  var _i2c = opts.i2c || PrimaryI2C;
+  var _enableMask = 0x08;
+
+  this.setBusChannel = function(channel) {
+    if ((channel < 0) || (channel >= 8)) {
+      return;
+    }
+    _channel = channel;
+    _i2c.writeTo(_address, _channel | _enableMask);
+  };
+
+  this.getBusChannel = function() {
+    return _channel;
+  };
+  this.setBusChannel(0);
+}
+
+exports.connect = function(opts) {
+  return new TroykaI2CHub(opts);
+};