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| author | Hans de Goede <hdegoede@redhat.com> | 2022-02-28 22:58:28 -0800 |
|---|---|---|
| committer | Dmitry Torokhov <dmitry.torokhov@gmail.com> | 2022-02-28 23:26:27 -0800 |
| commit | cb66b9ba5cdacab5592bce31a4083fc4ac172ea5 (patch) | |
| tree | 7304866999301a410f380c60ef43631c40597fe4 /include/linux/input.h | |
| parent | 3f9ed5c2fe36794c1b11697bbbc6c8ec82a7d3dc (diff) | |
| download | linux-cb66b9ba5cdacab5592bce31a4083fc4ac172ea5.tar.gz | |
Input: add input_copy_abs() function
Add a new helper function to copy absinfo from one input_dev to
another input_dev.
This is useful to e.g. setup a pen/stylus input-device for combined
touchscreen/pen hardware where the pen uses the same coordinates as
the touchscreen.
Suggested-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Link: https://lore.kernel.org/r/20220131143539.109142-2-hdegoede@redhat.com
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Diffstat (limited to 'include/linux/input.h')
| -rw-r--r-- | include/linux/input.h | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/include/linux/input.h b/include/linux/input.h index 0354b298d8749..49790c1bd2c43 100644 --- a/include/linux/input.h +++ b/include/linux/input.h @@ -475,6 +475,8 @@ static inline void input_set_events_per_packet(struct input_dev *dev, int n_even void input_alloc_absinfo(struct input_dev *dev); void input_set_abs_params(struct input_dev *dev, unsigned int axis, int min, int max, int fuzz, int flat); +void input_copy_abs(struct input_dev *dst, unsigned int dst_axis, + const struct input_dev *src, unsigned int src_axis); #define INPUT_GENERATE_ABS_ACCESSORS(_suffix, _item) \ static inline int input_abs_get_##_suffix(struct input_dev *dev, \ |