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authorH Hartley Sweeten <hartleys@visionengravers.com>2009-04-17 23:12:35 -0400
committerDmitry Torokhov <dmitry.torokhov@gmail.com>2009-04-17 23:37:21 -0400
commitbd3ce6556072bdc8ea66dfd5448e184f189bdc7f (patch)
tree264a0272647abe0ae4a7093abb3d6afc9b0a1bd2 /include/linux/rotary_encoder.h
parent3f3e7c6e139f704e2f48ea3b45ff7724a8d46456 (diff)
Input: rotary_encoder - add support for REL_* axes
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>
Diffstat (limited to 'include/linux/rotary_encoder.h')
-rw-r--r--include/linux/rotary_encoder.h2
1 files changed, 2 insertions, 0 deletions
diff --git a/include/linux/rotary_encoder.h b/include/linux/rotary_encoder.h
index 12d63a30c347..215278b8df2a 100644
--- a/include/linux/rotary_encoder.h
+++ b/include/linux/rotary_encoder.h
@@ -8,6 +8,8 @@ struct rotary_encoder_platform_data {
8 unsigned int gpio_b; 8 unsigned int gpio_b;
9 unsigned int inverted_a; 9 unsigned int inverted_a;
10 unsigned int inverted_b; 10 unsigned int inverted_b;
11 bool relative_axis;
12 bool rollover;
11}; 13};
12 14
13#endif /* __ROTARY_ENCODER_H__ */ 15#endif /* __ROTARY_ENCODER_H__ */