Merge pull request 'fancontrol, pwmconfig: Allow read-only pwm*_enable' (#344) from amezin/master into master

Note: strip superfluous parentheses

prog/pwm/fancontrol

@@ -548,7 +548,7 @@ function pwmenable()
 		fi
 		# enable manual control by fancontrol
 		echo 1 > $ENABLE 2> /dev/null
-		if [ $? -ne 0 ]
+		if [ "$(cat $ENABLE)" -ne 1 ]
 		then
 			return 1
 		fi

prog/pwm/pwmconfig

@@ -215,14 +215,12 @@ function pwmenable()
 {
 	local ENABLE=${1}_enable
 
-	if [ -w $ENABLE ]
+	echo 1 > $ENABLE 2>/dev/null
+	if [ "$(cat $ENABLE)" -ne 1 ]
 	then
-		echo 1 2>/dev/null > $ENABLE
-		if [ $? -ne 0 ]
-		then
-			return 1
-		fi
+		return 1
 	fi
+
 	echo $MAX > $1
 }