Migrating from i2c to i2c-bus due to kelly/node-i2c#90

lib/BNO055.js

@@ -1,4 +1,4 @@
-var i2c = require('i2c');
+var i2c = require('i2c-bus');
 var async = require('async');
 
 // https://www.adafruit.com/datasheets/BST_BNO055_DS000_12.pdf 
@@ -165,7 +165,29 @@ var BNO055 = module.exports = function(options) {
   if ('address' in options)
     address = options.address;
 
-  this.wire = new i2c(address, options);
+  var bus;
+  if ('bus' in options)
+    bus = options.bus;
+  else
+    bus = parseInt(options.device.match(new RegExp("^/dev/i2c-([0-9]*)"))[1]);
+
+  var i2cbus = i2c.openSync(bus);
+  this.wire = {
+    i2cbus: i2cbus,
+    readBytes: function(addr, count, callback) {
+      var buffer = Buffer.alloc(count);
+      return this.i2cbus.readI2cBlock(this.address, addr, count, buffer, function(err, bytesRead, buffer) { return callback(err, err?null:Array.prototype.slice.call(buffer, 0));});
+    },
+    writeBytes: function(addr, bytes, callback) {
+      if (bytes && bytes.length == 1)
+        return this.i2cbus.writeByte(this.address, addr, bytes[0], callback);
+      else {
+        var buffer = Buffer.from(bytes || []);
+        return this.i2cbus.writeI2cBlock(this.address, addr, buffer.length, buffer, callback);
+      }
+    },
+    address: address
+  }
 
   this.options = options;
 };

package.json

@@ -27,6 +27,6 @@
   "homepage": "https://github.com/landlessness/node-BNO055#readme",
   "dependencies": {
     "async": "^1.4.2",
-    "i2c": "git+https://github.com/polaris/node-i2c"
+    "i2c-bus": "^4.0.7"
   }
 }