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 ../iio/iio-bindings.txt for details 9 - iio-channels: must have at least two channels connected to an ADC device. 10These should correspond to the channels exposed by the ADC device and should 11have the right index as the ADC device registers them. These channels 12represent the relative position on the "x" and "y" axes. 13 - iio-channel-names: must have all the channels' names. Mandatory channels 14are "x" and "y". 15 16Optional properties: 17 - iio-channels: The third channel named "pressure" is optional and can be 18used if the ADC device also measures pressure besides position. 19If this channel is missing, pressure will be ignored and the touchscreen 20will only report position. 21 - iio-channel-names: optional channel named "pressure". 22 23Example: 24 25 resistive_touch: resistive_touch { 26 compatible = "resistive-adc-touch"; 27 touchscreen-min-pressure = <50000>; 28 io-channels = <&adc 24>, <&adc 25>, <&adc 26>; 29 io-channel-names = "x", "y", "pressure"; 30 }; 31