diff options
| author | Peter Hutterer <peter.hutterer@who-t.net> | 2023-04-18 16:53:05 +1000 |
|---|---|---|
| committer | Peter Hutterer <peter.hutterer@who-t.net> | 2023-04-27 13:15:14 +1000 |
| commit | d3481c88072d0a9713939d0eb0fb83478a032186 (patch) | |
| tree | 374ec884f7565b5167edd492ec432b8a3bdebdfd /doc | |
| parent | 64af4beb6b969ce346b0c30648e833c3db7b5e86 (diff) | |
| download | libinput-d3481c88072d0a9713939d0eb0fb83478a032186.tar.gz | |
evdev: if a device's rotation is around 180 degrees, flip the wheel
For a device used upside-down, make sure the wheels correspond to the
new physical directions. There's a grace range of 20 degrees either way
since that seems like it makes sense.
For 90 degree rotation (or 270 degree) the wheel is left as-is, the
heuristics to guess what angle we want in this case is not clear enough.
Signed-off-by: Peter Hutterer <peter.hutterer@who-t.net>
Diffstat (limited to 'doc')
| -rw-r--r-- | doc/user/configuration.rst | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/doc/user/configuration.rst b/doc/user/configuration.rst index f895d602..16207285 100644 --- a/doc/user/configuration.rst +++ b/doc/user/configuration.rst @@ -173,3 +173,7 @@ allowing the device to be used e.g. sideways or upside-down. For example, a trackball may be used in a 90° rotated position for accessibility reasons - such a rotated position allows triggering the buttons with the thumb or the non-dominant hand. + +Note that where a device rotation is higher than 160 but less than 200 degrees, +the direction of wheels is also inverted. For all other angles, the wheel +direction is left as-is. |