Signed-off-by: Jussi Pakkanen <jussi.pakkanen@xxxxxxxxxxxxx> --- Documentation/input/event-codes.txt | 34 ++++++++++++++++++++++++++++++++++ 1 files changed, 34 insertions(+), 0 deletions(-) diff --git a/Documentation/input/event-codes.txt b/Documentation/input/event-codes.txt index 23fcb05..2c4add3 100644 --- a/Documentation/input/event-codes.txt +++ b/Documentation/input/event-codes.txt @@ -220,6 +220,40 @@ EV_PWR: EV_PWR events are a special type of event used specifically for power mangement. Its usage is not well defined. To be addressed later. +Device properties: +================= + +INPUT_PROP_POINTER: +------------------ + +There does not exist a one to one mapping between the device +coordinates and screen coordinates. This property only has meaning for +non-touch based input such as a pen or an eraser. + +INPUT_PROP_DIRECT: +------------------ + +The device coordinates can be directly mapped to screen coordinates +(i.e. the opposite of INPUT_PROP_POINTER) This property only has +meaning for touch-based input. An example would be a touchscreen. + +INPUT_PROP_BUTTONPAD: +-------------------- + +The device has one or more physical buttons beneath the active surface +area. This means that you can generate button clicks by pressing down +on the trackpad area. Examples include aluminium body MacBook +trackpads and Synaptics clickpads. + +INPUT_PROP_SEMI_MT: +------------------ + +The device is a semi multitouch device. This means that it does not +provide proper touch locations; it only reports the total number of +touches and a bounding box that is defined by two of the +touches. There is no way to know which two touches the device chooses +to report. + Guidelines: ========== The guidelines below ensure proper single-touch and multi-finger functionality. -- 1.7.5.4 -- To unsubscribe from this list: send the line "unsubscribe linux-input" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
