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| author | Peter Hutterer <peter.hutterer@who-t.net> | 2009-05-20 11:57:01 +1000 |
|---|---|---|
| committer | Peter Hutterer <peter.hutterer@who-t.net> | 2009-07-30 09:44:33 +1000 |
| commit | b8519930e415043545e87ea660f6f0b3109537bf (patch) | |
| tree | 34ae556bf8f936a58198a23837a9448fe2dc37e2 /README | |
| parent | Up the number of button labels atoms to EVDEV_MAXBUTTONS. (diff) | |
| download | xf86-input-evdev-b8519930e415043545e87ea660f6f0b3109537bf.tar.gz xf86-input-evdev-b8519930e415043545e87ea660f6f0b3109537bf.tar.bz2 xf86-input-evdev-b8519930e415043545e87ea660f6f0b3109537bf.zip | |
Ensure enough buttons are advertised to pass the button mapping.
Some buttons are mapped to higher button numbers. For example, BTN_0 is
posted as button 8 if BTN_LEFT is present. On top of that, the
driver-specific button mapping may map the button to something else again.
We need to take these mappings into account when counting the number of
buttons on the device.
Example: A device with BTN_LEFT and BTN_0 and a mapping from 1 -> 7 and 8 ->
2.
BTN_LEFT is mapped to 1. 1 is mapped to 7. num_buttons is 7.
BTN_0 is mapped to 8. 8 is mapped to 2. num_buttons remains 7.
Signed-off-by: Peter Hutterer <peter.hutterer@who-t.net>
(cherry picked from commit b358f1eb3a4ef8fdee099114d6c70d6ea06eba95)
Diffstat (limited to 'README')
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