iio: Add channel for Position Relative

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Add new channel type for relative position on a pad.

These type of analog sensor offers the position of a pen
on a touchpad, and is represented as a voltage, which can be
converted to a position on X and Y axis on the pad.
The channel will hand the relative position on the pad in both directions.

The channel can then be consumed by a touchscreen driver or
read as-is for a raw indication of the touchpen on a touchpad.

Signed-off-by: Eugen Hristev <eugen.hristev@microchip.com>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>

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Eugen Hristev 2018-05-22 10:52:32 +03:00 • committed by Jonathan Cameron

parent d22cd4dd66

commit 3055a6cfa0

4 changed files with 16 additions and 0 deletions

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12

Documentation/ABI/testing/sysfs-bus-iio

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1

drivers/iio/industrialio-core.c

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1

include/uapi/linux/iio/types.h

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2

tools/iio/iio_event_monitor.c

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