From 3f88b67361cf4a7d16950a98c66670a9eb0318a0 Mon Sep 17 00:00:00 2001
From: Karan Misra <kidoman@gmail.com>
Date: Sun, 23 Mar 2014 06:41:51 +0530
Subject: [PATCH] minor cleanup

---
 bbb.go        | 3 +--
 descriptor.go | 3 ++-
 gpio.go       | 2 +-
 i2c.go        | 2 +-
 led.go        | 2 +-
 5 files changed, 6 insertions(+), 6 deletions(-)

diff --git a/bbb.go b/bbb.go
index ce349af..aba077d 100644
--- a/bbb.go
+++ b/bbb.go
@@ -1,7 +1,6 @@
 package embd
 
 import (
-	"errors"
 	"fmt"
 	"io/ioutil"
 	"os"
@@ -189,7 +188,7 @@ func (p *bbbAnalogPin) Read() (int, error) {
 }
 
 func (p *bbbAnalogPin) Write(_ int) error {
-	return errors.New("gpio: not implemented")
+	return ErrFeatureNotImplemented
 }
 
 func (p *bbbAnalogPin) Close() error {
diff --git a/descriptor.go b/descriptor.go
index ffd4a96..5f1117a 100644
--- a/descriptor.go
+++ b/descriptor.go
@@ -29,4 +29,5 @@ func DescribeHost() (*Descriptor, error) {
 	return describer(rev), nil
 }
 
-var ErrFeatureNotSupport = errors.New("embd: feature is not supported")
+var ErrFeatureNotSupported = errors.New("embd: requested feature is not supported")
+var ErrFeatureNotImplemented = errors.New("embd: requested feature is not implemented")
diff --git a/gpio.go b/gpio.go
index 138cbf8..44b535e 100644
--- a/gpio.go
+++ b/gpio.go
@@ -52,7 +52,7 @@ func InitGPIO() error {
 	}
 
 	if desc.GPIODriver == nil {
-		return ErrFeatureNotSupport
+		return ErrFeatureNotSupported
 	}
 
 	gpioDriverInstance = desc.GPIODriver()
diff --git a/i2c.go b/i2c.go
index 29b8253..fd65e8f 100644
--- a/i2c.go
+++ b/i2c.go
@@ -38,7 +38,7 @@ func InitI2C() error {
 	}
 
 	if desc.I2CDriver == nil {
-		return ErrFeatureNotSupport
+		return ErrFeatureNotSupported
 	}
 
 	i2cDriverInstance = desc.I2CDriver()
diff --git a/led.go b/led.go
index 3c3483e..ec7897a 100644
--- a/led.go
+++ b/led.go
@@ -24,7 +24,7 @@ func InitLED() error {
 	}
 
 	if desc.LEDDriver == nil {
-		return ErrFeatureNotSupport
+		return ErrFeatureNotSupported
 	}
 
 	ledDriverInstance = desc.LEDDriver()