Added max volume control

cmd/kefw2/cmd/maxvolume.go

@@ -0,0 +1,39 @@
+package cmd
+
+import (
+	"fmt"
+	"os"
+
+	"github.com/spf13/cobra"
+)
+
+// volumeCmd represents the volume command
+var maxVolumeCmd = &cobra.Command{
+	Use:     "maxvolume",
+	Aliases: []string{"maxvol"},
+	Short:   "Get or adjust the max volume of the speakers",
+	Long:    `Get or adjust the max volume of the speakers`,
+	Args:    cobra.MaximumNArgs(1),
+	Run: func(cmd *cobra.Command, args []string) {
+		if len(args) != 1 {
+			volume, _ := currentSpeaker.GetMaxVolume()
+			fmt.Printf("Volume is: %d%%\n", volume)
+			return
+		}
+		volume, err := parseVolume(args[0])
+		if err != nil {
+			fmt.Println(err)
+			os.Exit(1)
+		}
+		err = currentSpeaker.SetMaxVolume(volume)
+		if err != nil {
+			fmt.Println(err)
+			os.Exit(1)
+		}
+	},
+	ValidArgsFunction: VolumeCompletion,
+}
+
+func init() {
+	rootCmd.AddCommand(maxVolumeCmd)
+}

kefw2/kefw2.go

@@ -50,7 +50,7 @@ func (s *KEFSpeaker) UpdateInfo() (err error) {
 	}
 	s.getId()
 	s.getModelAndVersion()
-	s.getMaxVolume()
+	s.GetMaxVolume()
 	return nil
 }
 
@@ -157,11 +157,17 @@ func (s *KEFSpeaker) SpeakerState() (SpeakerStatus, error) {
 	return SpeakerStatus(speakerStatus.(SpeakerStatus)), err
 }
 
-func (s *KEFSpeaker) getMaxVolume() error {
+func (s *KEFSpeaker) GetMaxVolume() (int, error) {
 	path := "settings:/kef/host/maximumVolume"
 	maxVolume, err := JSONIntValue(s.getData(path))
 	s.MaxVolume = maxVolume
-	return err
+	return maxVolume, err
+}
+
+func (s *KEFSpeaker) SetMaxVolume(maxVolume int) error {
+	path := "settings:/kef/host/maximumVolume"
+	s.MaxVolume = maxVolume
+	return s.setTypedValue(path, maxVolume)
 }
 
 func (s *KEFSpeaker) IsPlaying() (bool, error) {