fix hwmon device index mapping

cmd/curve.go

@@ -41,9 +41,8 @@ var curveCmd = &cobra.Command{
 						ui.Fatal("Failed to match platform regex of %s (%s) against controller platform %s", config.ID, config.HwMon.Platform, controller.Platform)
 					}
 					if matched {
-						index := config.HwMon.Index - 1
-						if len(controller.Fans) > index {
-							fan := controller.Fans[index]
+						fan, exists := controller.Fans[config.HwMon.Index]
+						if exists {
 							config.HwMon.PwmOutput = fan.PwmOutput
 							config.HwMon.RpmInput = fan.RpmInput
 							break

cmd/detect.go

@@ -10,6 +10,7 @@ import (
 	"github.com/spf13/cobra"
 	"github.com/tomlazar/table"
 	"path/filepath"
+	"sort"
 	"strconv"
 )
 
@@ -39,17 +40,24 @@ var detectCmd = &cobra.Command{
 				continue
 			}
 
-			fanList := controller.Fans
-			sensorList := controller.Sensors
+			fanMap := controller.Fans
+			sensorMap := controller.Sensors
 
-			if len(fanList) <= 0 && len(sensorList) <= 0 {
+			if len(fanMap) <= 0 && len(sensorMap) <= 0 {
 				continue
 			}
 
 			ui.Printfln("> %s", controller.Name)
 
+			fanMapKeys := make([]int, 0, len(fanMap))
+			for k := range fanMap {
+				fanMapKeys = append(fanMapKeys, k)
+			}
+			sort.Ints(fanMapKeys)
+
 			var fanRows [][]string
-			for _, fan := range fanList {
+			for _, index := range fanMapKeys {
+				fan := fanMap[index]
 				pwmText := "N/A"
 				if pwm, err := fan.GetPwm(); err == nil {
 					pwmText = strconv.Itoa(pwm)
@@ -72,8 +80,15 @@ var detectCmd = &cobra.Command{
 				Rows:    fanRows,
 			}
 
+			sensorMapKeys := make([]int, 0, len(sensorMap))
+			for k := range sensorMap {
+				sensorMapKeys = append(sensorMapKeys, k)
+			}
+			sort.Ints(sensorMapKeys)
+
 			var sensorRows [][]string
-			for _, sensor := range sensorList {
+			for _, index := range sensorMapKeys {
+				sensor := sensorMap[index]
 				value, err := sensor.GetValue()
 				valueText := "N/A"
 				if err == nil {

cmd/fan/fan.go

@@ -50,9 +50,8 @@ func getFan(id string) (fans.Fan, error) {
 						return nil, errors.New(fmt.Sprintf("Failed to match platform regex of %s (%s) against controller platform %s", config.ID, config.HwMon.Platform, controller.Platform))
 					}
 					if matched {
-						index := config.HwMon.Index - 1
-						if len(controller.Fans) > index {
-							fan := controller.Fans[index]
+						fan, exists := controller.Fans[config.HwMon.Index]
+						if exists {
 							config.HwMon.PwmOutput = fan.PwmOutput
 							config.HwMon.RpmInput = fan.RpmInput
 							break

cmd/sensor/sensor.go

@@ -67,9 +67,8 @@ func getSensor(id string) (sensors.Sensor, error) {
 						return nil, errors.New(fmt.Sprintf("Failed to match platform regex of %s (%s) against controller platform %s", config.ID, config.HwMon.Platform, controller.Platform))
 					}
 					if matched {
-						index := config.HwMon.Index - 1
-						if len(controller.Sensors) > index {
-							sensor := controller.Sensors[index]
+						sensor, exists := controller.Sensors[config.HwMon.Index]
+						if exists {
 							if len(sensor.Input) <= 0 {
 								return nil, errors.New(fmt.Sprintf("Unable to find temp input for sensor %s", id))
 							}

internal/backend.go

@@ -196,7 +196,7 @@ func initializeSensors(controllers []*hwmon.HwMonController) {
 				}
 				if matched {
 					found = true
-					config.HwMon.TempInput = c.Sensors[config.HwMon.Index-1].Input
+					config.HwMon.TempInput = c.Sensors[config.HwMon.Index].Input
 				}
 			}
 			if !found {
@@ -253,9 +253,9 @@ func initializeFans(controllers []*hwmon.HwMonController) map[configuration.FanC
 				}
 				if matched {
 					found = true
-					index := config.HwMon.Index - 1
-					if len(c.Fans) > index {
-						fan := c.Fans[index]
+
+					fan, exists := c.Fans[config.HwMon.Index]
+					if exists {
 						config.HwMon.PwmOutput = fan.PwmOutput
 						config.HwMon.RpmInput = fan.RpmInput
 					}

internal/hwmon/hwmon.go

@@ -30,8 +30,10 @@ type HwMonController struct {
 	Platform string
 	Path     string
 
-	Fans    []*fans.HwMonFan
-	Sensors []*sensors.HwmonSensor
+	// Fans maps from HwMon index -> HwMonFan instance
+	Fans map[int]*fans.HwMonFan
+	// Sensors maps from HwMon index -> HwmonSensor instance
+	Sensors map[int]*sensors.HwmonSensor
 }
 
 func GetChips() []*HwMonController {
@@ -52,10 +54,10 @@ func GetChips() []*HwMonController {
 			platform = identifier
 		}
 
-		fansList := GetFans(chip)
-		sensorsList := GetTempSensors(chip)
+		fanMap := GetFans(chip)
+		sensorMap := GetTempSensors(chip)
 
-		if len(fansList) <= 0 && len(sensorsList) <= 0 {
+		if len(fanMap) <= 0 && len(sensorMap) <= 0 {
 			continue
 		}
 
@@ -65,8 +67,8 @@ func GetChips() []*HwMonController {
 			Modalias: modalias,
 			Platform: platform,
 			Path:     chip.Path,
-			Fans:     fansList,
-			Sensors:  sensorsList,
+			Fans:     fanMap,
+			Sensors:  sensorMap,
 		}
 		list = append(list, c)
 	}
@@ -96,9 +98,10 @@ func getDeviceType(devicePath string) string {
 	return strings.TrimSpace(string(content))
 }
 
-func GetTempSensors(chip gosensors.Chip) []*sensors.HwmonSensor {
-	var sensorList []*sensors.HwmonSensor
+func GetTempSensors(chip gosensors.Chip) map[int]*sensors.HwmonSensor {
+	result := map[int]*sensors.HwmonSensor{}
 
+	currentOutputIndex := 0
 	features := chip.GetFeatures()
 	for j := 0; j < len(features); j++ {
 		feature := features[j]
@@ -110,6 +113,8 @@ func GetTempSensors(chip gosensors.Chip) []*sensors.HwmonSensor {
 		subfeatures := feature.GetSubFeatures()
 
 		if containsSubFeature(subfeatures, gosensors.SubFeatureTypeTempInput) {
+			currentOutputIndex++
+
 			inputSubFeature := getSubFeature(subfeatures, gosensors.SubFeatureTypeTempInput)
 			sensorInputPath := path.Join(chip.Path, inputSubFeature.Name)
 
@@ -127,24 +132,22 @@ func GetTempSensors(chip gosensors.Chip) []*sensors.HwmonSensor {
 
 			label := getLabel(chip.Path, inputSubFeature.Name)
 
-			sensorList = append(
-				sensorList,
-				&sensors.HwmonSensor{
-					Label:     label,
-					Index:     len(sensorList) + 1,
-					Input:     sensorInputPath,
-					Max:       max,
-					Min:       min,
-					MovingAvg: inputSubFeature.GetValue(),
-				})
+			result[currentOutputIndex] = &sensors.HwmonSensor{
+				Label:     label,
+				Index:     currentOutputIndex,
+				Input:     sensorInputPath,
+				Max:       max,
+				Min:       min,
+				MovingAvg: inputSubFeature.GetValue(),
+			}
 		}
 	}
 
-	return sensorList
+	return result
 }
 
-func GetFans(chip gosensors.Chip) []*fans.HwMonFan {
-	var fanList []*fans.HwMonFan
+func GetFans(chip gosensors.Chip) map[int]*fans.HwMonFan {
+	var result = map[int]*fans.HwMonFan{}
 
 	currentOutputIndex := 0
 	features := chip.GetFeatures()
@@ -210,11 +213,11 @@ func GetFans(chip gosensors.Chip) []*fans.HwMonFan {
 				MaxPwm:       max,
 			}
 
-			fanList = append(fanList, fan)
+			result[currentOutputIndex] = fan
 		}
 	}
 
-	return fanList
+	return result
 }
 
 func getSubFeature(subfeatures []gosensors.SubFeature, input gosensors.SubFeatureType) *gosensors.SubFeature {