diff options
| author | Eugen Hristev <eugen.hristev@microchip.com> | 2018-05-22 09:52:32 +0200 |
|---|---|---|
| committer | Jonathan Cameron <Jonathan.Cameron@huawei.com> | 2018-06-10 12:55:15 +0200 |
| commit | 3055a6cfa04ba4288589778925e8838261e56078 (patch) | |
| tree | fb0febf4e937104fe330848f552da7e2cff3529a /Documentation/ABI | |
| parent | MAINTAINERS: add generic resistive touchscreen adc (diff) | |
| download | linux-3055a6cfa04ba4288589778925e8838261e56078.tar.xz linux-3055a6cfa04ba4288589778925e8838261e56078.zip | |
iio: Add channel for Position Relative
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>
Diffstat (limited to 'Documentation/ABI')
| -rw-r--r-- | Documentation/ABI/testing/sysfs-bus-iio | 12 |
1 files changed, 12 insertions, 0 deletions
diff --git a/Documentation/ABI/testing/sysfs-bus-iio b/Documentation/ABI/testing/sysfs-bus-iio index 731146c3b138..c7353030670a 100644 --- a/Documentation/ABI/testing/sysfs-bus-iio +++ b/Documentation/ABI/testing/sysfs-bus-iio @@ -197,6 +197,18 @@ Description: Angle of rotation. Units after application of scale and offset are radians. +What: /sys/bus/iio/devices/iio:deviceX/in_positionrelative_x_raw +What: /sys/bus/iio/devices/iio:deviceX/in_positionrelative_y_raw +KernelVersion: 4.18 +Contact: linux-iio@vger.kernel.org +Description: + Relative position in direction x or y on a pad (may be + arbitrarily assigned but should match other such assignments on + device). + Units after application of scale and offset are milli percents + from the pad's size in both directions. Should be calibrated by + the consumer. + What: /sys/bus/iio/devices/iio:deviceX/in_anglvel_x_raw What: /sys/bus/iio/devices/iio:deviceX/in_anglvel_y_raw What: /sys/bus/iio/devices/iio:deviceX/in_anglvel_z_raw |