linux_dsm_epyc7002/drivers/input
Ulrik De Bie a2418fc4a1 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 <dh.herrmann@gmail.com>
Reviewed-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Ulrik De Bie <ulrik.debie-os@e2big.org>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2014-08-26 15:17:41 -07:00
..
gameport Input: delete non-required instances of include <linux/init.h> 2014-01-06 23:23:57 -08:00
joystick Merge branch 'next' into for-linus 2014-08-14 23:02:58 -07:00
keyboard Merge branch 'next' into for-linus 2014-08-14 23:02:58 -07:00
misc Merge branch 'next' into for-linus 2014-08-06 23:36:12 -07:00
mouse Input: elantech - add support for trackpoint found on some v3 models 2014-08-26 15:17:41 -07:00
serio Input: sparc - i8042-sparcio.h: fix unused kbd_res warning 2014-08-19 14:20:40 -07:00
tablet Merge branch 'wacom' into next 2014-08-06 23:31:48 -07:00
touchscreen Merge branch 'next' into for-linus 2014-08-14 23:02:58 -07:00
apm-power.c Input: random formatting fixes 2012-08-21 22:29:49 -07:00
evbug.c
evdev.c Linux 3.15-rc5 2014-05-14 16:49:19 -07:00
ff-core.c Input: random formatting fixes 2012-08-21 22:29:49 -07:00
ff-memless.c Input: random formatting fixes 2012-08-21 22:29:49 -07:00
input-compat.c compat: Use COMPAT_USE_64BIT_TIME in the input subsystem 2012-02-20 12:48:47 -08:00
input-compat.h compat: Use COMPAT_USE_64BIT_TIME in the input subsystem 2012-02-20 12:48:47 -08:00
input-mt.c Input: fix used slots detection breakage 2014-08-25 14:59:48 -07:00
input-polldev.c Input: implement managed polled input devices 2014-05-14 16:40:04 -07:00
input.c Input: fix defuzzing logic 2014-07-20 13:17:42 -07:00
joydev.c Input: fix use-after-free introduced with dynamic minor changes 2012-10-22 08:50:37 +03:00
Kconfig Input: mousedev - allow disabling even without CONFIG_EXPERT 2013-10-31 08:46:07 -07:00
Makefile Input: matrix-keymap - uninline and prepare for device tree support 2012-05-10 22:38:47 -07:00
matrix-keymap.c input: Export matrix_keypad_parse_of_params() 2013-04-19 00:31:13 +02:00
mousedev.c Input: mousedev - fix race when creating mixed device 2014-03-29 14:44:23 -07:00
sparse-keymap.c treewide: Fix typo in Documentation/DocBook 2014-02-19 14:58:17 +01:00