rmi_2d_sensor.txt

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    1 Synaptics RMI4 2D Sensor Device Binding
    2 
    3 The Synaptics RMI4 core is able to support RMI4 devices using different
    4 transports and different functions. This file describes the device tree
    5 bindings for devices which contain 2D sensors using Function 11 or
    6 Function 12. Complete documentation for transports and other functions
    7 can be found in:
    8 Documentation/devicetree/bindings/input/rmi4.
    9 
   10 RMI4 Function 11 and Function 12 are for 2D touch position sensing.
   11 Additional documentation for F11 can be found at:
   12 http://www.synaptics.com/sites/default/files/511-000136-01-Rev-E-RMI4-Interfacing-Guide.pdf
   13 
   14 Optional Touch Properties:
   15 Description in Documentation/devicetree/bindings/input/touchscreen
   16 - touchscreen-inverted-x
   17 - touchscreen-inverted-y
   18 - touchscreen-swapped-x-y
   19 - touchscreen-x-mm
   20 - touchscreen-y-mm
   21 
   22 Optional Properties:
   23 - syna,clip-x-low: Sets a minimum value for X.
   24 - syna,clip-y-low: Sets a minimum value for Y.
   25 - syna,clip-x-high: Sets a maximum value for X.
   26 - syna,clip-y-high: Sets a maximum value for Y.
   27 - syna,offset-x: Add an offset to X.
   28 - syna,offset-y: Add an offset to Y.
   29 - syna,delta-x-threshold: Set the minimum distance on the X axis required
   30                                 to generate an interrupt in reduced reporting
   31                                 mode.
   32 - syna,delta-y-threshold: Set the minimum distance on the Y axis required
   33                                 to generate an interrupt in reduced reporting
   34                                 mode.
   35 - syna,sensor-type: Set the sensor type. 1 for touchscreen 2 for touchpad.
   36 - syna,disable-report-mask: Mask for disabling posiiton reporting. Used to
   37                                 disable reporing absolute position data.
   38 - syna,rezero-wait-ms: Time in miliseconds to wait after issuing a rezero
   39                                 command.
   40 
   41 
   42 Example of a RMI4 I2C device with F11:
   43 Example:
   44         &i2c1 {
   45                 rmi4-i2c-dev@2c {
   46                         compatible = "syna,rmi4-i2c";
   47 
   48                         ...
   49 
   50                         rmi4-f11@11 {
   51                                 reg = <0x11>;
   52                                 touchscreen-inverted-y;
   53                                 syna,sensor-type = <2>;
   54                         };
   55                 };
   56         };

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FreeBSD/Linux Kernel Cross Reference sys/contrib/device-tree/Bindings/input/rmi4/rmi_2d_sensor.txt

FreeBSD/Linux Kernel Cross Reference
sys/contrib/device-tree/Bindings/input/rmi4/rmi_2d_sensor.txt