diff options
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.patch | 84 |
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 - |