Provide coordinate transforms for touch screens in Monocle.
Transforms will be configured by system properties of the form:

monocle.input.PRODUCT_ID.KEY=VALUE

where

PRODUCT_ID is the input device product descriptor received from udev. The GetEvent application can be used to find the product ID.

KEY is one of minX, minY, maxX, maxY or flipXY

minX, minY, maxX and maxY override the ranges provided by the device driver. Swapping min and max values flips the axis direction.
flipXY is a boolean value which flips the X and Y axis if set to true.