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Message-Id: <20230203101800.139380-1-hadess@hadess.net>
Date: Fri, 3 Feb 2023 11:18:00 +0100
From: Bastien Nocera <hadess@...ess.net>
To: linux-input@...r.kernel.org
Cc: linux-kernel@...r.kernel.org, Jiri Kosina <jikos@...nel.org>,
Benjamin Tissoires <benjamin.tissoires@...hat.com>,
"Peter F . Patel-Schneider" <pfpschneider@...il.com>,
Filipe LaĆns <lains@...eup.net>,
Nestor Lopez Casado <nlopezcasad@...itech.com>,
Tobias Klausmann <klausman@...warzvogel.de>,
stable@...r.kernel.org
Subject: [PATCH] HID: logitech: Disable hi-res scrolling on USB
On some Logitech mice, such as the G903, and possibly the G403, the HID
events are generated on a different interface to the HID++ one.
If we enable hi-res through the HID++ interface, the HID interface
wouldn't know anything about it, and handle the events as if they were
regular scroll events, making the mouse unusable.
Disable hi-res scrolling on those devices until we implement scroll
events through HID++.
Signed-off-by: Bastien Nocera <hadess@...ess.net>
Tested-by: Tobias Klausmann <klausman@...warzvogel.de>
Link: https://bugzilla.kernel.org/show_bug.cgi?id=216885
Fixes: 908d325e1665 ("HID: logitech-hidpp: Detect hi-res scrolling support")
Cc: stable@...r.kernel.org
---
drivers/hid/hid-logitech-hidpp.c | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)
diff --git a/drivers/hid/hid-logitech-hidpp.c b/drivers/hid/hid-logitech-hidpp.c
index abf2c95e4d0b..9c1ee8e91e0c 100644
--- a/drivers/hid/hid-logitech-hidpp.c
+++ b/drivers/hid/hid-logitech-hidpp.c
@@ -3978,7 +3978,8 @@ static void hidpp_connect_event(struct hidpp_device *hidpp)
}
hidpp_initialize_battery(hidpp);
- hidpp_initialize_hires_scroll(hidpp);
+ if (!hid_is_usb(hidpp->hid_dev))
+ hidpp_initialize_hires_scroll(hidpp);
/* forward current battery state */
if (hidpp->capabilities & HIDPP_CAPABILITY_HIDPP10_BATTERY) {
--
2.39.1
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