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 <[email protected]>
Tested-by: Tobias Klausmann <[email protected]>
Link: https://bugzilla.kernel.org/show_bug.cgi?id=216885
Fixes: 908d325e1665 ("HID: logitech-hidpp: Detect hi-res scrolling support")
Cc: [email protected]
---
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
On Fri, 03 Feb 2023 11:18:00 +0100, Bastien Nocera wrote:
> 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.
>
> [...]
Applied to hid/hid.git (for-6.2/upstream-fixes), thanks!
[1/1] HID: logitech: Disable hi-res scrolling on USB
https://git.kernel.org/hid/hid/c/690eb7dec72a
Cheers,
--
Benjamin Tissoires <[email protected]>