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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>
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1 changed files with 6 additions and 6 deletions
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@ -190,16 +190,16 @@ static int alps_raw_event(struct hid_device *hdev,
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if (z != 0) {
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input_mt_report_slot_state(hdata->input,
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MT_TOOL_FINGER, 1);
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input_report_abs(hdata->input,
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ABS_MT_POSITION_X, x);
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input_report_abs(hdata->input,
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ABS_MT_POSITION_Y, y);
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input_report_abs(hdata->input,
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ABS_MT_PRESSURE, z);
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} else {
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input_mt_report_slot_state(hdata->input,
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MT_TOOL_FINGER, 0);
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break;
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}
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input_report_abs(hdata->input, ABS_MT_POSITION_X, x);
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input_report_abs(hdata->input, ABS_MT_POSITION_Y, y);
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input_report_abs(hdata->input, ABS_MT_PRESSURE, z);
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}
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input_mt_sync_frame(hdata->input);
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