linux.git/drivers/hid/hid-multitouch.c, branch v4.9

HID: multitouch: enable palm rejection for Windows Precision Touchpad

2016-06-28T11:24:14+00:00

The usage Confidence is mandary to Windows Precision Touchpad devices. If
it is examined in input_mapping on a WIndows Precision Touchpad, a new add
quirk MT_QUIRK_CONFIDENCE desgned for such devices will be applied to the
device. A touch with the confidence bit is not set is determined as
invalid.

Tested on Dell XPS13 9343

Cc: stable@vger.kernel.org # v4.5+
Reviewed-by: Benjamin Tissoires 
Tested-by: Andy Lutomirski  # XPS 13 9350, BIOS 1.4.3
Signed-off-by: Allen Hung 
Signed-off-by: Jiri Kosina

Revert "HID: multitouch: enable palm rejection if device implements confidence usage"

2016-06-28T11:24:14+00:00

This reverts commit 25a84db15b3f ("HID: multitouch: enable palm rejection
if device implements confidence usage")

The commit enables palm rejection for Win8 Precision Touchpad devices but
the quirk MT_QUIRK_VALID_IS_CONFIDENCE it is using is not working very
properly. This quirk is originally designed for some WIn7 touchscreens. Use
of this for a Win8 Precision Touchpad will cause unexpected pointer jumping
problem.

Cc: stable@vger.kernel.org # v4.5+
Reviewed-by: Benjamin Tissoires 
Tested-by: Andy Lutomirski  # XPS 13 9350, BIOS 1.4.3
Signed-off-by: Allen Hung 
Signed-off-by: Jiri Kosina

HID: multitouch: Add MT_QUIRK_NOT_SEEN_MEANS_UP to Surface Pro 3

2016-06-01T14:03:28+00:00

The firmware found in the touch screen of an SP3 is buggy and may miss
to send lift off reports for contacts. Try to work around that issue by
using MT_QUIRK_NOT_SEEN_MEANS_UP.

based on a patch from: Daniel Martin 

Signed-off-by: Benjamin Tissoires 
Signed-off-by: Jiri Kosina

HID: multitouch: Synchronize MT frame on reset_resume

2016-04-01T09:34:11+00:00

input_mt_get_slot_by_key() requires input_mt_sync_frame() to be called
at each frame. Do it when releasing the touches, or else we won't get
a proper slot number after mt_reset_resume().

Signed-off-by: Gabriele Mazzotta 
Reviewed-by: Benson Leung 
Reviewed-by: Benjamin TIssoires 
Signed-off-by: Jiri Kosina

Merge branches 'for-4.5/upstream-fixes', 'for-4.6/cmedia', 'for-4.6/i2c-hid', 'for-4.6/logitech', 'for-4.6/multitouch', 'for-4.6/penmount', 'for-4.6/sony', 'for-4.6/thingm', 'for-4.6/upstream' and 'for-4.6/wacom' into for-linus

2016-03-17T12:51:54+00:00

HID: multitouch: Release all touch slots on reset_resume

2016-03-14T09:00:00+00:00

When resetting a device (especially after power loss) it is unlikely
that the firmware will keep the contact tracking data for the previous
touches and will be able to reconcile it with the new contacts, so
let's release all slots on reset resume as start anew.

Signed-off-by: Benson Leung 
Signed-off-by: Dmitry Torokhov 
Reviewed-by: Benjamin Tissoires 
Signed-off-by: Jiri Kosina

HID: multitouch: force retrieving of Win8 signature blob

2016-03-07T22:42:49+00:00

The Synaptics 0x11e5 over I2C found in the Asus T100-CHI requires to
fetch the signature blob to actually start sending events.

With this patch, we should be close enough to the Windows driver which
checks the content of the blob at plugin to validate or not the
touchscreen.

Link: https://bugzilla.kernel.org/show_bug.cgi?id=113481
Fixes: 6d4f5440 ("HID: multitouch: Fetch feature reports on demand for Win8 devices")
Cc: stable@vger.kernel.org
Signed-off-by: Benjamin Tissoires 
Signed-off-by: Jiri Kosina

HID: multitouch: warn on sysfs group creation failure

2016-02-05T13:37:19+00:00

This adds a warning message stating that the sysfs group was not able to be
created for the passed hid_device structure pointer with dev_warn.

Signed-off-by: Nicholas Krause 
Reviewed-by: Benjamin Tissoires 
[jkosina@suse.cz: massaged changelog a bit]
[jkosina@suse.cz: reformatted source]
Signed-off-by: Jiri Kosina

Merge branches 'for-4.4/upstream-fixes', 'for-4.5/async-suspend', 'for-4.5/container-of-cleanups', 'for-4.5/core', 'for-4.5/i2c-hid', 'for-4.5/logitech', 'for-4.5/multitouch', 'for-4.5/sony', 'for-4.5/upstream' and 'for-4.5/wacom' into for-linus

2016-01-14T15:11:06+00:00

HID: use to_hid_device()

2015-12-28T12:41:44+00:00

Use to_hid_device() instead of container_of().

Signed-off-by: Geliang Tang 
Signed-off-by: Jiri Kosina