From a2418fc4a13b5da8d007a038c0a6a50a54edfabd Mon Sep 17 00:00:00 2001 From: Ulrik De Bie Date: Fri, 22 Aug 2014 17:06:00 -0700 Subject: [PATCH] Input: elantech - add support for trackpoint found on some v3 models Some elantech v3 touchpad equipped laptops also have a trackpoint, before this commit, these give sync errors. With this patch, the trackpoint is provided as another input device: 'Elantech PS/2 TrackPoint' The patch will also output messages that do not follow the expected pattern. In the mean time I've seen 2 unknown packets occasionally: 0x04 , 0x00 , 0x00 , 0x00 , 0x00 , 0x00 0x00 , 0x00 , 0x00 , 0x02 , 0x00 , 0x00 I don't know what those are for, but they can be safely ignored. Currently all packets that are not known to v3 touchpad and where packet[3] (the fourth byte) lowest nibble is 6 are now recognized as PACKET_TRACKPOINT and processed by the new elantech_report_trackpoint. This has been verified to work on a laptop Lenovo L530 where the touchpad/trackpoint combined identify themselves as: psmouse serio1: elantech: assuming hardware version 3 (with firmware version 0x350f02) psmouse serio1: elantech: Synaptics capabilities query result 0xb9, 0x15, 0x0c. Reviewed-by: David Herrmann Reviewed-by: Hans de Goede Signed-off-by: Ulrik De Bie Signed-off-by: Dmitry Torokhov --- Reading git-format-patch failed