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Native support for HID input from the linux kernelΒΆ

Support starts from 2.6.32-ubuntu, or 2.6.34.

To configure HIDInput, add this to your configuration:

[input]
# devicename = hidinput,/dev/input/eventXX
# example with Stantum MTP4.3" screen
stantum = hidinput,/dev/input/event2

Note

You must have read access to the input event.

You can use a custom range for the X, Y and pressure values. For some drivers, the range reported is invalid. To fix that, you can add these options to the argument line:

  • invert_x : 1 to invert X axis
  • invert_y : 1 to invert Y axis
  • min_position_x : X minimum
  • max_position_x : X maximum
  • min_position_y : Y minimum
  • max_position_y : Y maximum
  • min_pressure : pressure minimum
  • max_pressure : pressure maximum
  • rotation : rotate the input coordinate (0, 90, 180, 270)

For example, on the Asus T101M, the touchscreen reports a range from 0-4095 for the X and Y values, but the real values are in a range from 0-32768. To correct this, you can add the following to the configuration:

[input]
t101m = hidinput,/dev/input/event7,max_position_x=32768,max_position_y=32768

New in version 1.9.1: rotation configuration token added.