summaryrefslogtreecommitdiffstats
path: root/0002-HID-multitouch-Only-look-at-non-touch-fields-in-firs.patch
diff options
context:
space:
mode:
authorJustin M. Forbes <jforbes@fedoraproject.org>2018-02-01 15:50:49 -0600
committerJustin M. Forbes <jforbes@fedoraproject.org>2018-02-01 15:50:49 -0600
commit2de661d4893c0e438dc062196ffbcbf516340b1e (patch)
tree93467eadbb0a712058bf656072c6d9ae322edaf2 /0002-HID-multitouch-Only-look-at-non-touch-fields-in-firs.patch
parentc0522a6391a78a1a0260a41b70fd1f2cfc3ba85f (diff)
downloadkernel-2de661d4893c0e438dc062196ffbcbf516340b1e.tar.gz
kernel-2de661d4893c0e438dc062196ffbcbf516340b1e.tar.xz
kernel-2de661d4893c0e438dc062196ffbcbf516340b1e.zip
Linux v4.15-6064-g255442c93843
Diffstat (limited to '0002-HID-multitouch-Only-look-at-non-touch-fields-in-firs.patch')
-rw-r--r--0002-HID-multitouch-Only-look-at-non-touch-fields-in-firs.patch84
1 files changed, 0 insertions, 84 deletions
diff --git a/0002-HID-multitouch-Only-look-at-non-touch-fields-in-firs.patch b/0002-HID-multitouch-Only-look-at-non-touch-fields-in-firs.patch
deleted file mode 100644
index 3ea374ff5..000000000
--- a/0002-HID-multitouch-Only-look-at-non-touch-fields-in-firs.patch
+++ /dev/null
@@ -1,84 +0,0 @@
-From c25d877f4ee97deb92170129eee4777a5d5997d9 Mon Sep 17 00:00:00 2001
-From: Hans de Goede <hdegoede@redhat.com>
-Date: Wed, 22 Nov 2017 12:57:09 +0100
-Subject: [PATCH v2 2/3] HID: multitouch: Only look at non touch fields in
- first packet of a frame
-
-Devices in "single finger hybrid mode" will send one report per finger,
-on some devices only the first report of such a multi-packet frame will
-contain a value for BTN_LEFT, in subsequent reports (if multiple fingers
-are down) the value is always 0, causing hid-mt to report BTN_LEFT going
-1 - 0 - 1 - 0 when pressing a clickpad and putting down a second finger.
-This happens for example on USB 0603:0002 mt touchpads.
-
-This commit fixes this by only reporting non touch fields for the first
-packet of a (possibly) multi-packet frame.
-
-Signed-off-by: Hans de Goede <hdegoede@redhat.com>
-Reviewed-by: Benjamin Tissoires <benjamin.tissoires@redhat.com>
-Signed-off-by: Jiri Kosina <jkosina@suse.cz>
----
- drivers/hid/hid-multitouch.c | 17 +++++++++++++++--
- 1 file changed, 15 insertions(+), 2 deletions(-)
-
-diff --git a/drivers/hid/hid-multitouch.c b/drivers/hid/hid-multitouch.c
-index d8b1cad74faf..760c4a042e6a 100644
---- a/drivers/hid/hid-multitouch.c
-+++ b/drivers/hid/hid-multitouch.c
-@@ -787,9 +787,11 @@ static int mt_touch_event(struct hid_device *hid, struct hid_field *field,
- }
-
- static void mt_process_mt_event(struct hid_device *hid, struct hid_field *field,
-- struct hid_usage *usage, __s32 value)
-+ struct hid_usage *usage, __s32 value,
-+ bool first_packet)
- {
- struct mt_device *td = hid_get_drvdata(hid);
-+ __s32 cls = td->mtclass.name;
- __s32 quirks = td->mtclass.quirks;
- struct input_dev *input = field->hidinput->input;
-
-@@ -846,6 +848,15 @@ static void mt_process_mt_event(struct hid_device *hid, struct hid_field *field,
- break;
-
- default:
-+ /*
-+ * For Win8 PTP touchpads we should only look at
-+ * non finger/touch events in the first_packet of
-+ * a (possible) multi-packet frame.
-+ */
-+ if ((cls == MT_CLS_WIN_8 || cls == MT_CLS_WIN_8_DUAL) &&
-+ !first_packet)
-+ return;
-+
- if (usage->type)
- input_event(input, usage->type, usage->code,
- value);
-@@ -866,6 +877,7 @@ static void mt_touch_report(struct hid_device *hid, struct hid_report *report)
- struct mt_device *td = hid_get_drvdata(hid);
- __s32 cls = td->mtclass.name;
- struct hid_field *field;
-+ bool first_packet;
- unsigned count;
- int r, n, scantime = 0;
-
-@@ -901,6 +913,7 @@ static void mt_touch_report(struct hid_device *hid, struct hid_report *report)
- }
- td->prev_scantime = scantime;
-
-+ first_packet = td->num_received == 0;
- for (r = 0; r < report->maxfield; r++) {
- field = report->field[r];
- count = field->report_count;
-@@ -910,7 +923,7 @@ static void mt_touch_report(struct hid_device *hid, struct hid_report *report)
-
- for (n = 0; n < count; n++)
- mt_process_mt_event(hid, field, &field->usage[n],
-- field->value[n]);
-+ field->value[n], first_packet);
- }
-
- if (td->num_received >= td->num_expected)
---
-2.14.3
-