1Generic resistive touchscreen ADC 2 3Required properties: 4 5 - compatible: must be "resistive-adc-touch" 6The device must be connected to an ADC device that provides channels for 7position measurement and optional pressure. 8Refer to 9https://github.com/devicetree-org/dt-schema/blob/master/schemas/iio/iio-consumer.yaml 10for details 11 12 - iio-channels: must have at least two channels connected to an ADC device. 13These should correspond to the channels exposed by the ADC device and should 14have the right index as the ADC device registers them. These channels 15represent the relative position on the "x" and "y" axes. 16 - iio-channel-names: must have all the channels' names. Mandatory channels 17are "x" and "y". 18 19Optional properties: 20 - iio-channels: The third channel named "pressure" is optional and can be 21used if the ADC device also measures pressure besides position. 22If this channel is missing, pressure will be ignored and the touchscreen 23will only report position. 24 - iio-channel-names: optional channel named "pressure". 25 26Example: 27 28 resistive_touch: resistive_touch { 29 compatible = "resistive-adc-touch"; 30 touchscreen-min-pressure = <50000>; 31 io-channels = <&adc 24>, <&adc 25>, <&adc 26>; 32 io-channel-names = "x", "y", "pressure"; 33 }; 34