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iio: Add channel for Phase

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Add new channel type support for phase.

This channel may be used by Time-of-flight sensors to express the
phase difference between emitted and received signals. Those sensor
will then use the phase shift of return signals to approximate the
distance to objects.

Signed-off-by: Mathieu Othacehe <[email protected]>
Signed-off-by: Jonathan Cameron <[email protected]>
This commit is contained in:
Mathieu Othacehe 2018-07-20 19:34:25 +02:00 • committed by Jonathan Cameron
commit c73314e6eb
4 changed files with 11 additions and 0 deletions
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7
Documentation/ABI/testing/sysfs-bus-iio
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@ -1675,3 +1675,10 @@ KernelVersion: 4.12
Contact: [email protected]
Description:
Raw counter device counters direction for channel Y.
What: /sys/bus/iio/devices/iio:deviceX/in_phaseY_raw
KernelVersion: 4.18
Contact: [email protected]
Description:
Raw (unscaled) phase difference reading from channel Y
that can be processed to radians.