diff options
| author | Benjamin Gaignard <benjamin.gaignard@linaro.org> | 2017-04-04 09:47:51 +0200 |
|---|---|---|
| committer | Jonathan Cameron <jic23@kernel.org> | 2017-04-14 16:08:31 +0200 |
| commit | 4adec7da0536a345d901d7ba55b6c93a14eeeaff (patch) | |
| tree | f8eb05106b3e15c05e3241569aceebacf629bedc /Kbuild | |
| parent | iio: imu: st_lsm6dsx: use i2c/spi device name for iio_dev name (diff) | |
| download | linux-4adec7da0536a345d901d7ba55b6c93a14eeeaff.tar.xz linux-4adec7da0536a345d901d7ba55b6c93a14eeeaff.zip | |
iio: stm32 trigger: Add quadrature encoder device
One of the features of STM32 trigger hardware block is a quadrature
encoder that can counts up/down depending of the levels and edges
of the selected external pins.
This patch allow to read/write the counter, get it direction,
set/get quadrature modes and get scale factor.
When counting up preset value is the limit of the counter.
When counting down the counter start from preset value down to 0.
This preset value could be set/get by using
/sys/bus/iio/devices/iio:deviceX/in_count0_preset attribute.
Signed-off-by: Benjamin Gaignard <benjamin.gaignard@st.com>
Reviewed-by: William Breathitt Gray <vilhelm.gray@gmail.com>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
Diffstat (limited to 'Kbuild')
0 files changed, 0 insertions, 0 deletions