9ae15c6a45
This is a workaround for a kernel bug with the Wacom Mobile Studio Pro
13: this device sends erroneous ABS_WHEEL events when pressing
buttons:
- evdev:
- [ 0, 0, 1, 256, 1] # EV_KEY / BTN_0 1
- [ 0, 0, 3, 8, 17] # EV_ABS / ABS_WHEEL 17 (+17)
- [ 0, 0, 3, 8, 0] # EV_ABS / ABS_WHEEL 0 (-17)
- [ 0, 0, 3, 40, 15] # EV_ABS / ABS_MISC 15 (+15)
- [ 0, 0, 0, 0, 0] # ------------ SYN_REPORT (0) ---------- +0ms
ABS_WHEEL to 17 then to 0 in the same frame. We should (and do) treat this
as a zero event and drop the 17 to the floor. Alas, we then generate a
ring event for the zero value despite our current value being zero
anyway. This again causes confusing behavior.
This is simple enough to work around, at least until the kernel is fixed
but also to prevent this happening in the future: warn if we get
multiple events and if so and the later event is zero, undo the axis
change state.
Closes: #1081
Part-of: <https://gitlab.freedesktop.org/libinput/libinput/-/merge_requests/1136>
|
||
|---|---|---|
| .gitlab/issue_templates | ||
| .gitlab-ci | ||
| completion/zsh | ||
| doc | ||
| include | ||
| quirks | ||
| src | ||
| test | ||
| tools | ||
| udev | ||
| .dir-locals.el | ||
| .editorconfig | ||
| .gitignore | ||
| .gitlab-ci.yml | ||
| .pre-commit-config.yaml | ||
| .triage-policies.yml | ||
| .vimdir | ||
| CODING_STYLE.md | ||
| CONTRIBUTING.md | ||
| COPYING | ||
| meson.build | ||
| meson_options.txt | ||
| README.md | ||
libinput
libinput is a library that provides a full input stack for display servers and other applications that need to handle input devices provided by the kernel.
libinput provides device detection, event handling and abstraction to minimize the amount of custom input code the user of libinput needs to provide the common set of functionality that users expect. Input event processing includes scaling touch coordinates, generating relative pointer events from touchpads, pointer acceleration, etc.
User documentation
Documentation explaining features available in libinput is available here.
This includes the FAQ and the instructions on reporting bugs.
Source code
The source code of libinput can be found at: https://gitlab.freedesktop.org/libinput/libinput
For a list of current and past releases visit: https://www.freedesktop.org/wiki/Software/libinput/
Build instructions: https://wayland.freedesktop.org/libinput/doc/latest/building.html
Reporting Bugs
Bugs can be filed on freedesktop.org GitLab: https://gitlab.freedesktop.org/libinput/libinput/issues/
Where possible, please provide the libinput record output
of the input device and/or the event sequence in question.
See https://wayland.freedesktop.org/libinput/doc/latest/reporting-bugs.html for more info.
Documentation
- Developer API documentation: https://wayland.freedesktop.org/libinput/doc/latest/development.html
- High-level documentation about libinput's features: https://wayland.freedesktop.org/libinput/doc/latest/features.html
- Build instructions: https://wayland.freedesktop.org/libinput/doc/latest/building.html
- Documentation for previous versions of libinput: https://wayland.freedesktop.org/libinput/doc/
Examples of how to use libinput are the debugging tools in the libinput repository. Developers are encouraged to look at those tools for a real-world (yet simple) example on how to use libinput.
- A commandline debugging tool: https://gitlab.freedesktop.org/libinput/libinput/tree/main/tools/libinput-debug-events.c
- A GTK application that draws cursor/touch/tablet positions: https://gitlab.freedesktop.org/libinput/libinput/tree/main/tools/libinput-debug-gui.c
License
libinput is licensed under the MIT license.
Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the "Software"), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions: [...]
See the COPYING file for the full license information.
About
Documentation generated from git commit GIT_VERSION