xiaomi-sm8450/android_kernel_xiaomi_sm8450
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

Input: rotary_encoder - add support for REL_* axes

Browse Source 
The rotary encoder driver only supports returning input events
for ABS_* axes, this adds support for REL_* axes.  The relative
axis input event is reported as -1 for each counter-clockwise
step and +1 for each clockwise step.

The ability to clamp the position of ABS_* axes between 0 and
a maximum of "steps" has also been added.

Signed-off-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Signed-off-by: Daniel Mack <daniel@caiaq.de>
Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
This commit is contained in:
H Hartley Sweeten
2009-04-17 20:12:35 -07:00
committed by Dmitry Torokhov
parent 3f3e7c6e13
commit bd3ce65560
3 changed files with 51 additions and 21 deletions
Download Patch File Download Diff File Expand all files Collapse all files

2
include/linux/rotary_encoder.h
View File

@@ -8,6 +8,8 @@ struct rotary_encoder_platform_data {
unsigned int gpio_b;
unsigned int inverted_a;
unsigned int inverted_b;
bool relative_axis;
bool rollover;
};
#endif /* __ROTARY_ENCODER_H__ */