From mboxrd@z Thu Jan 1 00:00:00 1970 From: Gregor Riepl Subject: Support for additional properties in touchscreen.h Date: Sat, 11 Nov 2017 15:34:37 +0100 Message-ID: <00f3838a-455a-574b-5a7a-c494cd39e36a@gmail.com> Mime-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: 8bit Return-path: Received: from mail-wm0-f53.google.com ([74.125.82.53]:32779 "EHLO mail-wm0-f53.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1750918AbdKKOen (ORCPT ); Sat, 11 Nov 2017 09:34:43 -0500 Received: by mail-wm0-f53.google.com with SMTP id r68so8916481wmr.0 for ; Sat, 11 Nov 2017 06:34:43 -0800 (PST) Content-Language: en-GB Sender: linux-input-owner@vger.kernel.org List-Id: linux-input@vger.kernel.org To: linux-input@vger.kernel.org Cc: Hans de Goede Hi, I was discussing jitter problems with a Silead touchscreen user today. This is a general issue that should be solved on the hardware or firmware level, but as we don't have a way to modify either for Silead controllers, I was thinking that there might be a way to apply interpolation in the driver. input_set_abs_params has fuzz and flat parameters, perhaps these can be used for that purpose? Is there a better way to do interpolation? Would it make sense to add corresponding jitter_x and jitter_y parameters to include/linux/input/touchscreen.h ? Regards, Greg