2022-09-07 14:04:08

by Andrea Merello

[permalink] [raw]
Subject: [v7 05/14] iio: document pitch, yaw, roll modifiers

From: Andrea Merello <[email protected]>

Introduce ABI documentation for new modifiers used for reporting rotations
expressed as euler angles (i.e. yaw, pitch, roll).

It looks like we have some unit inconsistency along various IIO modifiers:
it seems that incli is in deg, angl is in radians and rot isn't documented,
but at least the adis16209 driver has rot in deg.

Here we use deg (so angl is the only one using radians).

Signed-off-by: Andrea Merello <[email protected]>
Reviewed-by: Andy Shevchenko <[email protected]>
---
Documentation/ABI/testing/sysfs-bus-iio | 9 +++++++++
1 file changed, 9 insertions(+)

diff --git a/Documentation/ABI/testing/sysfs-bus-iio b/Documentation/ABI/testing/sysfs-bus-iio
index cc1fe672580f..f694a3653245 100644
--- a/Documentation/ABI/testing/sysfs-bus-iio
+++ b/Documentation/ABI/testing/sysfs-bus-iio
@@ -2077,3 +2077,12 @@ Description:
individual channels. If multiple channels are enabled in a scan,
then the sampling_frequency of the scan may be computed from the
per channel sampling frequencies.
+
+What: /sys/bus/iio/devices/iio:deviceX/in_rot_yaw_raw
+What: /sys/bus/iio/devices/iio:deviceX/in_rot_pitch_raw
+What: /sys/bus/iio/devices/iio:deviceX/in_rot_roll_raw
+KernelVersion: 6.1
+Contact: [email protected]
+Description:
+ Raw (unscaled) euler angles readings. Units after
+ application of scale are deg.
--
2.17.1