diff --git a/controller/hd44780/hd44780.go b/controller/hd44780/hd44780.go
index 45eae34..7e5c692 100644
--- a/controller/hd44780/hd44780.go
+++ b/controller/hd44780/hd44780.go
@@ -15,8 +15,8 @@ package hd44780
 import (
 	"time"
 
-	"github.com/golang/glog"
 	"github.com/cfreeman/embd"
+	"github.com/golang/glog"
 )
 
 type entryMode byte
diff --git a/controller/mcp4725/mcp4725.go b/controller/mcp4725/mcp4725.go
index 169d13b..969dd48 100644
--- a/controller/mcp4725/mcp4725.go
+++ b/controller/mcp4725/mcp4725.go
@@ -4,8 +4,8 @@ package mcp4725
 import (
 	"sync"
 
-	"github.com/golang/glog"
 	"github.com/cfreeman/embd"
+	"github.com/golang/glog"
 )
 
 const (
diff --git a/controller/pca9685/pca9685.go b/controller/pca9685/pca9685.go
index a9e9545..98acf0f 100644
--- a/controller/pca9685/pca9685.go
+++ b/controller/pca9685/pca9685.go
@@ -6,9 +6,9 @@ import (
 	"sync"
 	"time"
 
-	"github.com/golang/glog"
 	"github.com/cfreeman/embd"
 	"github.com/cfreeman/embd/util"
+	"github.com/golang/glog"
 )
 
 const (
diff --git a/controller/pcal9535a/pcal9535a.go b/controller/pcal9535a/pcal9535a.go
index 8322a5e..02e7414 100644
--- a/controller/pcal9535a/pcal9535a.go
+++ b/controller/pcal9535a/pcal9535a.go
@@ -1,13 +1,31 @@
-// PCAL953A, low volage GPIO expander as found in the Raspberry
+/*
+ * Copyright (c) Clinton Freeman 2016
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of this software and
+ * associated documentation files (the "Software"), to deal in the Software without restriction,
+ * including without limitation the rights to use, copy, modify, merge, publish, distribute,
+ * sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all copies or
+ * substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT
+ * NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+ * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,
+ * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
+// Package pcal9535a adds support for the low volage GPIO expander as found in the Raspberry
 // Pi Relay board by Seeed Studio.
-//
-// http://wiki.seeedstudio.com/wiki/Raspberry_Pi_Relay_Board_v1.0
 package pcal9535a
 
 import (
 	"github.com/cfreeman/embd"
 )
 
+// More details at - http://wiki.seeedstudio.com/wiki/Raspberry_Pi_Relay_Board_v1.0
 const (
 	REG_MODE = 0x06
 )
@@ -38,6 +56,7 @@ func (c *PCAL9535A) SetPin(pin uint, on bool) error {
 	return c.Bus.WriteByteToReg(c.Addr, REG_MODE, c.D)
 }
 
+// Gets the state of supplied pin true = high or on, while false = low or off.
 func (c *PCAL9535A) GetPin(pin uint) bool {
 	return (((c.D >> pin) & 1) == 0)
 }
diff --git a/convertors/mcp3008/mcp3008.go b/convertors/mcp3008/mcp3008.go
index 1b21752..30d6373 100644
--- a/convertors/mcp3008/mcp3008.go
+++ b/convertors/mcp3008/mcp3008.go
@@ -2,8 +2,8 @@
 package mcp3008
 
 import (
-	"github.com/golang/glog"
 	"github.com/cfreeman/embd"
+	"github.com/golang/glog"
 )
 
 // MCP3008 represents a mcp3008 8bit DAC.
diff --git a/embd/detect.go b/embd/detect.go
index 183ce08..2a62010 100644
--- a/embd/detect.go
+++ b/embd/detect.go
@@ -4,8 +4,8 @@ import (
 	"fmt"
 	"os"
 
-	"github.com/codegangsta/cli"
 	"github.com/cfreeman/embd"
+	"github.com/codegangsta/cli"
 )
 
 func detect(c *cli.Context) {
diff --git a/embd/main.go b/embd/main.go
index 7e50047..57ef4de 100644
--- a/embd/main.go
+++ b/embd/main.go
@@ -3,8 +3,8 @@ package main
 import (
 	"os"
 
-	"github.com/codegangsta/cli"
 	_ "github.com/cfreeman/embd/host/all"
+	"github.com/codegangsta/cli"
 )
 
 var version = "0.1.0"
diff --git a/host/bbb/bbb.go b/host/bbb/bbb.go
index c5e4bbc..cc203c2 100644
--- a/host/bbb/bbb.go
+++ b/host/bbb/bbb.go
@@ -15,9 +15,9 @@ import (
 	"os"
 	"strings"
 
-	"github.com/golang/glog"
 	"github.com/cfreeman/embd"
 	"github.com/cfreeman/embd/host/generic"
+	"github.com/golang/glog"
 )
 
 var pins = embd.PinMap{
diff --git a/host/bbb/pwmpin.go b/host/bbb/pwmpin.go
index eb2234e..da0f978 100644
--- a/host/bbb/pwmpin.go
+++ b/host/bbb/pwmpin.go
@@ -10,9 +10,9 @@ import (
 	"strconv"
 	"time"
 
-	"github.com/golang/glog"
 	"github.com/cfreeman/embd"
 	"github.com/cfreeman/embd/util"
+	"github.com/golang/glog"
 )
 
 const (
diff --git a/host/edison/edison.go b/host/edison/edison.go
index e675684..62be092 100644
--- a/host/edison/edison.go
+++ b/host/edison/edison.go
@@ -1,6 +1,23 @@
 /*
-	Package edison provides Intel Edison support.
-*/
+ * Copyright (c) Clinton Freeman 2016
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of this software and
+ * associated documentation files (the "Software"), to deal in the Software without restriction,
+ * including without limitation the rights to use, copy, modify, merge, publish, distribute,
+ * sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all copies or
+ * substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT
+ * NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+ * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,
+ * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
+// Package edison Provides Intel Edison support.
 package edison
 
 import (
diff --git a/host/generic/i2cbus.go b/host/generic/i2cbus.go
index 0f38510..0f32d62 100644
--- a/host/generic/i2cbus.go
+++ b/host/generic/i2cbus.go
@@ -11,8 +11,8 @@ import (
 	"time"
 	"unsafe"
 
-	"github.com/golang/glog"
 	"github.com/cfreeman/embd"
+	"github.com/golang/glog"
 )
 
 const (
diff --git a/host/generic/spibus.go b/host/generic/spibus.go
index 439cd46..402e1c4 100644
--- a/host/generic/spibus.go
+++ b/host/generic/spibus.go
@@ -7,8 +7,8 @@ import (
 	"syscall"
 	"unsafe"
 
-	"github.com/golang/glog"
 	"github.com/cfreeman/embd"
+	"github.com/golang/glog"
 )
 
 const (
diff --git a/motion/servo/servo.go b/motion/servo/servo.go
index 2246077..1a54a70 100644
--- a/motion/servo/servo.go
+++ b/motion/servo/servo.go
@@ -2,8 +2,8 @@
 package servo
 
 import (
-	"github.com/golang/glog"
 	"github.com/cfreeman/embd/util"
+	"github.com/golang/glog"
 )
 
 const (
diff --git a/samples/watersensor.go b/samples/watersensor.go
index 3fc0eff..ac0267b 100644
--- a/samples/watersensor.go
+++ b/samples/watersensor.go
@@ -6,9 +6,9 @@ import (
 	"flag"
 	"time"
 
-	"github.com/golang/glog"
 	"github.com/cfreeman/embd"
 	"github.com/cfreeman/embd/sensor/watersensor"
+	"github.com/golang/glog"
 
 	_ "github.com/cfreeman/embd/host/all"
 )
diff --git a/sensor/bmp085/bmp085.go b/sensor/bmp085/bmp085.go
index eea540e..c18250f 100644
--- a/sensor/bmp085/bmp085.go
+++ b/sensor/bmp085/bmp085.go
@@ -7,8 +7,8 @@ import (
 	"sync"
 	"time"
 
-	"github.com/golang/glog"
 	"github.com/cfreeman/embd"
+	"github.com/golang/glog"
 )
 
 const (
diff --git a/sensor/bmp180/bmp180.go b/sensor/bmp180/bmp180.go
index bb18a6a..02ba8f6 100644
--- a/sensor/bmp180/bmp180.go
+++ b/sensor/bmp180/bmp180.go
@@ -7,8 +7,8 @@ import (
 	"sync"
 	"time"
 
-	"github.com/golang/glog"
 	"github.com/cfreeman/embd"
+	"github.com/golang/glog"
 )
 
 const (
diff --git a/sensor/l3gd20/l3gd20.go b/sensor/l3gd20/l3gd20.go
index c3a6c75..6ce20d1 100644
--- a/sensor/l3gd20/l3gd20.go
+++ b/sensor/l3gd20/l3gd20.go
@@ -7,8 +7,8 @@ import (
 	"sync"
 	"time"
 
-	"github.com/golang/glog"
 	"github.com/cfreeman/embd"
+	"github.com/golang/glog"
 )
 
 const (
diff --git a/sensor/lsm303/lsm303.go b/sensor/lsm303/lsm303.go
index 40e4d31..5af95e0 100644
--- a/sensor/lsm303/lsm303.go
+++ b/sensor/lsm303/lsm303.go
@@ -6,8 +6,8 @@ import (
 	"sync"
 	"time"
 
-	"github.com/golang/glog"
 	"github.com/cfreeman/embd"
+	"github.com/golang/glog"
 )
 
 const (
diff --git a/sensor/tmp006/tmp006.go b/sensor/tmp006/tmp006.go
index 42ca679..7788996 100644
--- a/sensor/tmp006/tmp006.go
+++ b/sensor/tmp006/tmp006.go
@@ -8,8 +8,8 @@ import (
 	"sync"
 	"time"
 
-	"github.com/golang/glog"
 	"github.com/cfreeman/embd"
+	"github.com/golang/glog"
 )
 
 const (
diff --git a/sensor/us020/us020.go b/sensor/us020/us020.go
index 0d021ce..694acff 100644
--- a/sensor/us020/us020.go
+++ b/sensor/us020/us020.go
@@ -5,8 +5,8 @@ import (
 	"sync"
 	"time"
 
-	"github.com/golang/glog"
 	"github.com/cfreeman/embd"
+	"github.com/golang/glog"
 )
 
 const (
diff --git a/sensor/watersensor/watersensor.go b/sensor/watersensor/watersensor.go
index 1fd6d98..8bc3e8b 100644
--- a/sensor/watersensor/watersensor.go
+++ b/sensor/watersensor/watersensor.go
@@ -4,8 +4,8 @@ package watersensor
 import (
 	"sync"
 
-	"github.com/golang/glog"
 	"github.com/cfreeman/embd"
+	"github.com/golang/glog"
 )
 
 // WaterSensor represents a water sensor.