| Message ID | 1468027442-5033-1-git-send-email-alexandre.belloni@free-electrons.com (mailing list archive) |
|---|---|
| State | New, archived |
| Headers | show |
On 09/07/16 02:24, Alexandre Belloni wrote: > Add documentation for ADC keys > > Signed-off-by: Alexandre Belloni <alexandre.belloni@free-electrons.com> I'm seeing a few more properties in the driver. They may be generic input ones, but should still be listed here... autorepeat for example. > --- > Changes in v2: > - fix title > - use keyup-threshold-mvolt and press-threshold-mvolt instead of > voltage-keyup-mvolt and voltage-mvolt. > > .../devicetree/bindings/input/adc-keys.txt | 45 ++++++++++++++++++++++ > 1 file changed, 45 insertions(+) > create mode 100644 Documentation/devicetree/bindings/input/adc-keys.txt > > diff --git a/Documentation/devicetree/bindings/input/adc-keys.txt b/Documentation/devicetree/bindings/input/adc-keys.txt > new file mode 100644 > index 000000000000..e43b8979b85a > --- /dev/null > +++ b/Documentation/devicetree/bindings/input/adc-keys.txt > @@ -0,0 +1,45 @@ > +ADC attached resistor ladder buttons > +------------------------------------ > + > +Required properties: > + - compatible: "adc-keys" > + - io-channels: Phandle to an ADC channel > + - io-channel-names = "buttons"; > + - keyup-threshold-mvolt: Voltage at which all the keys are considered up. > + > +Each key is represented as a sub-node of "adc-keys": > + > +Required subnode-properties: > + - label: Descriptive name of the key. > + - linux,code: Keycode to emit. > + - press-threshold-mvolt: Voltage adc input when this key is pressed. > + > +Example: > + > +#include <dt-bindings/input/input.h> > + > + adc-keys { > + compatible = "adc-keys"; > + io-channels = <&lradc 0>; > + io-channel-names = "buttons"; > + keyup-threshold-mvolt = <2000>; > + > + button@1500 { > + label = "Volume Up"; > + linux,code = <KEY_VOLUMEUP>; > + press-threshold-mvolt = <1500>; > + }; > + > + button@1000 { > + label = "Volume Down"; > + linux,code = <KEY_VOLUMEDOWN>; > + press-threshold-mvolt = <1000>; > + }; > + > + button@500 { > + label = "Enter"; > + linux,code = <KEY_ENTER>; > + press-threshold-mvolt = <500>; > + }; > + }; > + > -- To unsubscribe from this list: send the line "unsubscribe linux-input" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
diff --git a/Documentation/devicetree/bindings/input/adc-keys.txt b/Documentation/devicetree/bindings/input/adc-keys.txt new file mode 100644 index 000000000000..e43b8979b85a --- /dev/null +++ b/Documentation/devicetree/bindings/input/adc-keys.txt @@ -0,0 +1,45 @@ +ADC attached resistor ladder buttons +------------------------------------ + +Required properties: + - compatible: "adc-keys" + - io-channels: Phandle to an ADC channel + - io-channel-names = "buttons"; + - keyup-threshold-mvolt: Voltage at which all the keys are considered up. + +Each key is represented as a sub-node of "adc-keys": + +Required subnode-properties: + - label: Descriptive name of the key. + - linux,code: Keycode to emit. + - press-threshold-mvolt: Voltage adc input when this key is pressed. + +Example: + +#include <dt-bindings/input/input.h> + + adc-keys { + compatible = "adc-keys"; + io-channels = <&lradc 0>; + io-channel-names = "buttons"; + keyup-threshold-mvolt = <2000>; + + button@1500 { + label = "Volume Up"; + linux,code = <KEY_VOLUMEUP>; + press-threshold-mvolt = <1500>; + }; + + button@1000 { + label = "Volume Down"; + linux,code = <KEY_VOLUMEDOWN>; + press-threshold-mvolt = <1000>; + }; + + button@500 { + label = "Enter"; + linux,code = <KEY_ENTER>; + press-threshold-mvolt = <500>; + }; + }; +
Add documentation for ADC keys Signed-off-by: Alexandre Belloni <alexandre.belloni@free-electrons.com> --- Changes in v2: - fix title - use keyup-threshold-mvolt and press-threshold-mvolt instead of voltage-keyup-mvolt and voltage-mvolt. .../devicetree/bindings/input/adc-keys.txt | 45 ++++++++++++++++++++++ 1 file changed, 45 insertions(+) create mode 100644 Documentation/devicetree/bindings/input/adc-keys.txt