vref-supply = <®_vcc3v0>;
        status = "okay";
 
-       button@800 {
+       button-800 {
                label = "Volume Up";
                linux,code = <KEY_VOLUMEUP>;
                channel = <0>;
                voltage = <800000>;
        };
 
-       button@1000 {
+       button-1000 {
                label = "Volume Down";
                linux,code = <KEY_VOLUMEDOWN>;
                channel = <0>;
                voltage = <1000000>;
        };
 
-       button@1200 {
+       button-1200 {
                label = "Back";
                linux,code = <KEY_BACK>;
                channel = <0>;
 
        vref-supply = <®_ldo2>;
        status = "okay";
 
-       button@400 {
+       button-400 {
                label = "Volume Down";
                linux,code = <KEY_VOLUMEDOWN>;
                channel = <0>;
                voltage = <400000>;
        };
 
-       button@800 {
+       button-800 {
                label = "Volume Up";
                linux,code = <KEY_VOLUMEUP>;
                channel = <0>;
 
 
        status = "okay";
 
-       button@158 {
+       button-158 {
                label = "Volume Down";
                linux,code = <KEY_VOLUMEDOWN>;
                channel = <0>;
                voltage = <158730>;
        };
 
-       button@349 {
+       button-349 {
                label = "Volume Up";
                linux,code = <KEY_VOLUMEUP>;
                channel = <0>;
                voltage = <349206>;
        };
 
-       button@1142 {
+       button-1142 {
                label = "Esc";
                linux,code = <KEY_ESC>;
                channel = <0>;
 
        vref-supply = <®_ldo2>;
        status = "okay";
 
-       button@200 {
+       button-200 {
                label = "Volume Up";
                linux,code = <KEY_VOLUMEUP>;
                channel = <0>;
                voltage = <200000>;
        };
 
-       button@1000 {
+       button-1000 {
                label = "Volume Down";
                linux,code = <KEY_VOLUMEDOWN>;
                channel = <0>;
                voltage = <1000000>;
        };
 
-       button@1200 {
+       button-1200 {
                label = "Home";
                linux,code = <KEY_HOMEPAGE>;
                channel = <0>;
 
        vref-supply = <®_ldo2>;
        status = "okay";
 
-       button@200 {
+       button-200 {
                label = "Menu";
                linux,code = <KEY_MENU>;
                channel = <0>;
                voltage = <200000>;
        };
 
-       button@600 {
+       button-600 {
                label = "Volume Up";
                linux,code = <KEY_VOLUMEUP>;
                channel = <0>;
                voltage = <600000>;
        };
 
-       button@800 {
+       button-800 {
                label = "Volume Down";
                linux,code = <KEY_VOLUMEDOWN>;
                channel = <0>;
                voltage = <800000>;
        };
 
-       button@1000 {
+       button-1000 {
                label = "Home";
                linux,code = <KEY_HOMEPAGE>;
                channel = <0>;
                voltage = <1000000>;
        };
 
-       button@1200 {
+       button-1200 {
                label = "Esc";
                linux,code = <KEY_ESC>;
                channel = <0>;
 
        vref-supply = <®_ldo2>;
        status = "okay";
 
-       button@200 {
+       button-200 {
                label = "Menu";
                linux,code = <KEY_MENU>;
                channel = <0>;
                voltage = <200000>;
        };
 
-       button@600 {
+       button-600 {
                label = "Volume Up";
                linux,code = <KEY_VOLUMEUP>;
                channel = <0>;
                voltage = <600000>;
        };
 
-       button@800 {
+       button-800 {
                label = "Volume Down";
                linux,code = <KEY_VOLUMEDOWN>;
                channel = <0>;
                voltage = <800000>;
        };
 
-       button@1000 {
+       button-1000 {
                label = "Home";
                linux,code = <KEY_HOMEPAGE>;
                channel = <0>;
                voltage = <1000000>;
        };
 
-       button@1200 {
+       button-1200 {
                label = "Esc";
                linux,code = <KEY_ESC>;
                channel = <0>;
 
        vref-supply = <®_ldo2>;
        status = "okay";
 
-       button@400 {
+       button-400 {
                label = "Volume Up";
                linux,code = <KEY_VOLUMEUP>;
                channel = <0>;
                voltage = <400000>;
        };
 
-       button@800 {
+       button-800 {
                label = "Volume Down";
                linux,code = <KEY_VOLUMEDOWN>;
                channel = <0>;