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authorMasaki Ota <012nexus@gmail.com>2016-09-27 14:04:37 +0900
committerJiri Kosina <jkosina@suse.cz>2016-09-27 13:50:09 +0200
commit9a54cf462d6f3c383a5a4f5fe15c020a03db44e6 (patch)
tree53bee8d449c5d9012d72468f413d1fba8d97ce7e /drivers/hid/hid-alps.c
parent884316deb4c9fdf9becfa31831a9e40717e3026c (diff)
downloadlinux-9a54cf462d6f3c383a5a4f5fe15c020a03db44e6.tar.bz2
HID: alps: fix multitouch cursor issue
Issue reproduction procedure: 1. three or more fingers put on Touchpad. 2. release fingers from Touchpad. 3. move the cursor by one finger. 4. the cursor does not move. Cause: We do not notify multi fingers state correctly to input subsystem. For example, when three fingers release from Touchpad, fingers state is 3 -> 0. It needs to notify first, second and third finger's releasing state. Fix this by not breaking out on z axis and move x,y,z input handling code to the correct place so that it's in fact per-finger. [jkosina@suse.cz: reword changelog] Signed-off-by: Masaki Ota <masaki.ota@jp.alps.com> Signed-off-by: Jiri Kosina <jkosina@suse.cz>
Diffstat (limited to 'drivers/hid/hid-alps.c')
-rw-r--r--drivers/hid/hid-alps.c12
1 files changed, 6 insertions, 6 deletions
diff --git a/drivers/hid/hid-alps.c b/drivers/hid/hid-alps.c
index 048befde295a..610df92837bb 100644
--- a/drivers/hid/hid-alps.c
+++ b/drivers/hid/hid-alps.c
@@ -190,16 +190,16 @@ static int alps_raw_event(struct hid_device *hdev,
if (z != 0) {
input_mt_report_slot_state(hdata->input,
MT_TOOL_FINGER, 1);
+ input_report_abs(hdata->input,
+ ABS_MT_POSITION_X, x);
+ input_report_abs(hdata->input,
+ ABS_MT_POSITION_Y, y);
+ input_report_abs(hdata->input,
+ ABS_MT_PRESSURE, z);
} else {
input_mt_report_slot_state(hdata->input,
MT_TOOL_FINGER, 0);
- break;
}
-
- input_report_abs(hdata->input, ABS_MT_POSITION_X, x);
- input_report_abs(hdata->input, ABS_MT_POSITION_Y, y);
- input_report_abs(hdata->input, ABS_MT_PRESSURE, z);
-
}
input_mt_sync_frame(hdata->input);