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| author | Benjamin Gaignard <benjamin.gaignard@linaro.org> | 2017-04-04 09:47:52 +0200 |
|---|---|---|
| committer | Jonathan Cameron <jic23@kernel.org> | 2017-04-14 15:09:04 +0100 |
| commit | 2a830a45ffb05d1aa8d7866235501f635678bec6 (patch) | |
| tree | a5a48abbea064c60f455ffb9dd249543f7fcf27d /Documentation | |
| parent | 4adec7da0536a345d901d7ba55b6c93a14eeeaff (diff) | |
| download | linux-stable-2a830a45ffb05d1aa8d7866235501f635678bec6.tar.gz linux-stable-2a830a45ffb05d1aa8d7866235501f635678bec6.tar.bz2 linux-stable-2a830a45ffb05d1aa8d7866235501f635678bec6.zip | |
iio: stm32 trigger: Add counter enable modes
Device counting could be controlled by the level or the edges of
a trigger.
in_count0_enable_mode attibute allow to set the control mode.
Signed-off-by: Benjamin Gaignard <benjamin.gaignard@st.com>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
Diffstat (limited to 'Documentation')
| -rw-r--r-- | Documentation/ABI/testing/sysfs-bus-iio-timer-stm32 | 25 |
1 files changed, 25 insertions, 0 deletions
diff --git a/Documentation/ABI/testing/sysfs-bus-iio-timer-stm32 b/Documentation/ABI/testing/sysfs-bus-iio-timer-stm32 index a55ad44446c5..230020e06677 100644 --- a/Documentation/ABI/testing/sysfs-bus-iio-timer-stm32 +++ b/Documentation/ABI/testing/sysfs-bus-iio-timer-stm32 @@ -65,3 +65,28 @@ Description: quadrature: Encoder A and B inputs are mixed to get direction and count with a scale of 0.25. + +What: /sys/bus/iio/devices/iio:deviceX/in_count_enable_mode_available +KernelVersion: 4.12 +Contact: benjamin.gaignard@st.com +Description: + Reading returns the list possible enable modes. + +What: /sys/bus/iio/devices/iio:deviceX/in_count0_enable_mode +KernelVersion: 4.12 +Contact: benjamin.gaignard@st.com +Description: + Configure the device counter enable modes, in all case + counting direction is set by in_count0_count_direction + attribute and the counter is clocked by the internal clock. + always: + Counter is always ON. + + gated: + Counting is enabled when connected trigger signal + level is high else counting is disabled. + + triggered: + Counting is enabled on rising edge of the connected + trigger, and remains enabled for the duration of this + selected mode. |