This is a note to let you know that I've just added the patch titled
HID: logitech: Handle 0 scroll events for the m560
to the 5.0-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary
The filename of the patch is:
hid-logitech-handle-0-scroll-events-for-the-m560.patch
and it can be found in the queue-5.0 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
>From fd35759ce32b60d3eb52436894bab996dbf8cffa Mon Sep 17 00:00:00 2001
From: Peter Hutterer <peter.hutterer@xxxxxxxxx>
Date: Wed, 20 Mar 2019 08:48:23 +1000
Subject: HID: logitech: Handle 0 scroll events for the m560
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From: Peter Hutterer <peter.hutterer@xxxxxxxxx>
commit fd35759ce32b60d3eb52436894bab996dbf8cffa upstream.
hidpp_scroll_counter_handle_scroll() doesn't expect a 0-value scroll event, it
gets interpreted as a negative scroll direction event. This can cause scroll
direction resets and thus broken scrolling.
Fixes: 4435ff2f09a2fc ("HID: logitech: Enable high-resolution scrolling on Logitech mice")
Cc: stable@xxxxxxxxxxxxxxx # v5.0
Reported-and-tested-by: Aimo Metsälä <aimetsal@xxxxxxxxxxx>
Signed-off-by: Peter Hutterer <peter.hutterer@xxxxxxxxx>
Signed-off-by: Benjamin Tissoires <benjamin.tissoires@xxxxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
drivers/hid/hid-logitech-hidpp.c | 5 +++--
1 file changed, 3 insertions(+), 2 deletions(-)
--- a/drivers/hid/hid-logitech-hidpp.c
+++ b/drivers/hid/hid-logitech-hidpp.c
@@ -2608,8 +2608,9 @@ static int m560_raw_event(struct hid_dev
input_report_rel(mydata->input, REL_Y, v);
v = hid_snto32(data[6], 8);
- hidpp_scroll_counter_handle_scroll(
- &hidpp->vertical_wheel_counter, v);
+ if (v != 0)
+ hidpp_scroll_counter_handle_scroll(
+ &hidpp->vertical_wheel_counter, v);
input_sync(mydata->input);
}
Patches currently in stable-queue which might be from peter.hutterer@xxxxxxxxx are
queue-5.0/hid-logitech-handle-0-scroll-events-for-the-m560.patch
