From 0c0e29f297ef8ed99d9704ef585ba495e32b4521 Mon Sep 17 00:00:00 2001
From: Jean Delvare <khali@linux-fr.org>
Date: Tue, 28 Jan 2014 21:40:55 +0000
Subject: [PATCH] fancontrol: Deal with moving hwmon attributes

Several kernel drivers have already moved their attributes from the
hardware device to the hwmon class device, and others will follow.
Teach fancontrol about this possibility and let it adjust the attribute
paths transparently.
---
 CHANGES             |  1 +
 prog/pwm/fancontrol | 63 +++++++++++++++++++++++++++++++++++++++++++++
 2 files changed, 64 insertions(+)

diff --git a/CHANGES b/CHANGES
index 970dd671..c0894d53 100644
--- a/CHANGES
+++ b/CHANGES
@@ -2,6 +2,7 @@ lm-sensors CHANGES file
 -----------------------
 
 SVN HEAD
+  fancontrol: Deal with moving hwmon attributes
   sensors-detect: Add detection of ADC128D818
 
 3.3.5 "Happy Birthday Beddy" (2014-01-22)
diff --git a/prog/pwm/fancontrol b/prog/pwm/fancontrol
index 27711398..6ac0900a 100755
--- a/prog/pwm/fancontrol
+++ b/prog/pwm/fancontrol
@@ -206,6 +206,65 @@ function ValidateDevices()
 	return $outdated
 }
 
+function FixupDeviceFiles
+{
+	local DEVICE="$1"
+	local fcvcount pwmo tsen fan
+
+	let fcvcount=0
+	while (( $fcvcount < ${#AFCPWM[@]} )) # go through all pwm outputs
+	do
+		pwmo=${AFCPWM[$fcvcount]}
+		AFCPWM[$fcvcount]=${pwmo//$DEVICE\/device/$DEVICE}
+		if [ "${AFCPWM[$fcvcount]}" != "$pwmo" ]
+		then
+			echo "Adjusing $pwmo -> ${AFCPWM[$fcvcount]}"
+		fi
+		let fcvcount=$fcvcount+1
+	done
+
+	let fcvcount=0
+	while (( $fcvcount < ${#AFCTEMP[@]} )) # go through all temp inputs
+	do
+		tsen=${AFCTEMP[$fcvcount]}
+		AFCTEMP[$fcvcount]=${tsen//$DEVICE\/device/$DEVICE}
+		if [ "${AFCTEMP[$fcvcount]}" != "$tsen" ]
+		then
+			echo "Adjusing $tsen -> ${AFCTEMP[$fcvcount]}"
+		fi
+		let fcvcount=$fcvcount+1
+	done
+
+	let fcvcount=0
+	while (( $fcvcount < ${#AFCFAN[@]} )) # go through all fan inputs
+	do
+		fan=${AFCFAN[$fcvcount]}
+		AFCFAN[$fcvcount]=${fan//$DEVICE\/device/$DEVICE}
+		if [ "${AFCFAN[$fcvcount]}" != "$fan" ]
+		then
+			echo "Adjusing $fan -> ${AFCFAN[$fcvcount]}"
+		fi
+		let fcvcount=$fcvcount+1
+	done
+}
+
+# Some drivers moved their attributes from hard device to class device
+function FixupFiles
+{
+	local DEVPATH="$1"
+	local entry device
+
+	for entry in $DEVPATH
+	do
+		device=`echo "$entry" | sed -e 's/=[^=]*$//'`
+
+		if [ -e "$device/name" ]
+		then
+			FixupDeviceFiles "$device"
+		fi
+	done
+}
+
 # Check that all referenced sysfs files exist
 function CheckFiles
 {
@@ -306,6 +365,10 @@ then
 	echo "Configuration appears to be outdated, please run pwmconfig again" >&2
 	exit 1
 fi
+if [ "$DIR" = "/sys/class/hwmon" ]
+then
+	FixupFiles "$DEVPATH"
+fi
 CheckFiles || exit 1
 
 if [ -f "$PIDFILE" ]