Re: [PATCH v2] Documented input device properties.
From: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Date: 2012-01-11 17:43:19
On Wed, Jan 11, 2012 at 01:56:31PM +0200, Jussi Pakkanen wrote:
quoted hunk ↗ jump to hunk
Signed-off-by: Jussi Pakkanen <redacted> --- 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.
What exactly do you mean by "touch-based input"? Is a touchpad touch-based or not? Going by this paragraph it should not have INPUT_PROP_POINTER property, but in fact we do set it at least on Synaptics touchpads. Thanks. -- Dmitry