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authorLinus Torvalds <torvalds@linux-foundation.org>2009-06-20 10:17:02 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2009-06-20 10:17:02 -0700
commit93db6294958f62643a917e44d1abc85440e600cf (patch)
tree33de2c41b0f70d209d64487d1a2bba6d673015ef /Documentation
parent43813f399c72aa22e01a680559c1cb5274bf2140 (diff)
parenteef3e4cab72eaf5345e3c73b2975c194a714f6cd (diff)
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Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input: (35 commits) Input: add driver for Synaptics I2C touchpad Input: synaptics - add support for reporting x/y resolution Input: ALPS - handle touchpoints buttons correctly Input: gpio-keys - change timer to workqueue Input: ads7846 - pin change interrupt support Input: add support for touchscreen on W90P910 ARM platform Input: appletouch - improve finger detection Input: wacom - clear Intuos4 wheel data when finger leaves proximity Input: ucb1400 - move static function from header into core Input: add driver for EETI touchpanels Input: ads7846 - more detailed model name in sysfs Input: ads7846 - support swapping x and y axes Input: ati_remote2 - use non-atomic bitops Input: introduce lm8323 keypad driver Input: psmouse - ESD workaround fix for OLPC XO touchpad Input: tsc2007 - make sure platform provides get_pendown_state() Input: uinput - flush all pending ff effects before destroying device Input: simplify name handling for certain input handles Input: serio - do not use deprecated dev.power.power_state Input: wacom - add support for Intuos4 tablets ...
Diffstat (limited to 'Documentation')
-rw-r--r--Documentation/input/input.txt2
-rw-r--r--Documentation/input/rotary-encoder.txt9
2 files changed, 9 insertions, 2 deletions
diff --git a/Documentation/input/input.txt b/Documentation/input/input.txt
index 686ee99..b93c084 100644
--- a/Documentation/input/input.txt
+++ b/Documentation/input/input.txt
@@ -278,7 +278,7 @@ struct input_event {
};
'time' is the timestamp, it returns the time at which the event happened.
-Type is for example EV_REL for relative moment, REL_KEY for a keypress or
+Type is for example EV_REL for relative moment, EV_KEY for a keypress or
release. More types are defined in include/linux/input.h.
'code' is event code, for example REL_X or KEY_BACKSPACE, again a complete
diff --git a/Documentation/input/rotary-encoder.txt b/Documentation/input/rotary-encoder.txt
index 435102a..3a6aec4 100644
--- a/Documentation/input/rotary-encoder.txt
+++ b/Documentation/input/rotary-encoder.txt
@@ -67,7 +67,12 @@ data with it.
struct rotary_encoder_platform_data is declared in
include/linux/rotary-encoder.h and needs to be filled with the number of
steps the encoder has and can carry information about externally inverted
-signals (because of used invertig buffer or other reasons).
+signals (because of an inverting buffer or other reasons). The encoder
+can be set up to deliver input information as either an absolute or relative
+axes. For relative axes the input event returns +/-1 for each step. For
+absolute axes the position of the encoder can either roll over between zero
+and the number of steps or will clamp at the maximum and zero depending on
+the configuration.
Because GPIO to IRQ mapping is platform specific, this information must
be given in seperately to the driver. See the example below.
@@ -85,6 +90,8 @@ be given in seperately to the driver. See the example below.
static struct rotary_encoder_platform_data my_rotary_encoder_info = {
.steps = 24,
.axis = ABS_X,
+ .relative_axis = false,
+ .rollover = false,
.gpio_a = GPIO_ROTARY_A,
.gpio_b = GPIO_ROTARY_B,
.inverted_a = 0,