linux-kernel - [PATCH v2] iio: documentation: light: Add as73211 sysfs documentation

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Message-ID: <20200810052447.12381-1-ceggers@arri.de>
Date:   Mon, 10 Aug 2020 07:24:47 +0200
From:   Christian Eggers <ceggers@...i.de>
To:     Jonathan Cameron <Jonathan.Cameron@...wei.com>,
        Jonathan Cameron <jic23@...nel.org>
CC:     Andy Shevchenko <andy.shevchenko@...il.com>,
        Hartmut Knaack <knaack.h@....de>,
        Lars-Peter Clausen <lars@...afoo.de>,
        "Peter Meerwald-Stadler" <pmeerw@...erw.net>,
        <linux-iio@...r.kernel.org>, <linux-kernel@...r.kernel.org>,
        Christian Eggers <ceggers@...i.de>
Subject: [PATCH v2] iio: documentation: light: Add as73211 sysfs documentation

The driver for the as73211 light sensor provides the following not yet
documented sysfs entries:
- in_intensity_(x|y|z)_raw
- in_intensity_(x|y|z)_scale
- in_intensity_sampling_frequency(_available)
- in_intensity_hardwaregain(_available)
- in_intensity_integration_time

Signed-off-by: Christian Eggers <ceggers@...i.de>
---
Jonathan Cameron:
> If it is shared across 'ALL' channels then it will be just integration_time
> If it is shared across all channels of a given type, it will be <type>_integration_time.
changed.

Best regards
Christian Eggers

 Documentation/ABI/testing/sysfs-bus-iio | 26 ++++++++++++++++++++++++-
 1 file changed, 25 insertions(+), 1 deletion(-)

diff --git a/Documentation/ABI/testing/sysfs-bus-iio b/Documentation/ABI/testing/sysfs-bus-iio
index d3e53a6d8331..388560149875 100644
--- a/Documentation/ABI/testing/sysfs-bus-iio
+++ b/Documentation/ABI/testing/sysfs-bus-iio
@@ -40,6 +40,7 @@ Description:
 		buffered samples and events for device X.
 
 What:		/sys/bus/iio/devices/iio:deviceX/sampling_frequency
+What:		/sys/bus/iio/devices/iio:deviceX/in_intensity_sampling_frequency
 What:		/sys/bus/iio/devices/iio:deviceX/buffer/sampling_frequency
 What:		/sys/bus/iio/devices/triggerX/sampling_frequency
 KernelVersion:	2.6.35
@@ -55,6 +56,7 @@ Description:
 		then it is to be found in the base device directory.
 
 What:		/sys/bus/iio/devices/iio:deviceX/sampling_frequency_available
+What:		/sys/bus/iio/devices/iio:deviceX/in_intensity_sampling_frequency_available
 What:		/sys/bus/iio/devices/iio:deviceX/in_proximity_sampling_frequency_available
 What:		/sys/.../iio:deviceX/buffer/sampling_frequency_available
 What:		/sys/bus/iio/devices/triggerX/sampling_frequency_available
@@ -374,6 +376,9 @@ What:		/sys/bus/iio/devices/iio:deviceX/in_velocity_sqrt(x^2+y^2+z^2)_scale
 What:		/sys/bus/iio/devices/iio:deviceX/in_illuminance_scale
 What:		/sys/bus/iio/devices/iio:deviceX/in_countY_scale
 What:		/sys/bus/iio/devices/iio:deviceX/in_angl_scale
+What:		/sys/bus/iio/devices/iio:deviceX/in_intensity_x_scale
+What:		/sys/bus/iio/devices/iio:deviceX/in_intensity_y_scale
+What:		/sys/bus/iio/devices/iio:deviceX/in_intensity_z_scale
 KernelVersion:	2.6.35
 Contact:	linux-iio@...r.kernel.org
 Description:
@@ -484,6 +489,7 @@ Description:
 		are listed in this attribute.
 
 What		/sys/bus/iio/devices/iio:deviceX/out_voltageY_hardwaregain
+What:		/sys/bus/iio/devices/iio:deviceX/in_intensity_hardwaregain
 What:		/sys/bus/iio/devices/iio:deviceX/in_intensity_red_hardwaregain
 What:		/sys/bus/iio/devices/iio:deviceX/in_intensity_green_hardwaregain
 What:		/sys/bus/iio/devices/iio:deviceX/in_intensity_blue_hardwaregain
@@ -494,6 +500,13 @@ Description:
 		Hardware applied gain factor. If shared across all channels,
 		<type>_hardwaregain is used.
 
+What:		/sys/bus/iio/devices/iio:deviceX/in_intensity_hardwaregain_available
+KernelVersion:	5.10
+Contact:	linux-iio@...r.kernel.org
+Description:
+		Lists all available hardware applied gain factors. Shared across all
+		channels.
+
 What:		/sys/.../in_accel_filter_low_pass_3db_frequency
 What:		/sys/.../in_magn_filter_low_pass_3db_frequency
 What:		/sys/.../in_anglvel_filter_low_pass_3db_frequency
@@ -1333,6 +1346,7 @@ Description:
 		standardised CIE Erythemal Action Spectrum. UV index values range
 		from 0 (low) to >=11 (extreme).
 
+What:		/sys/.../iio:deviceX/in_intensity_integration_time
 What:		/sys/.../iio:deviceX/in_intensity_red_integration_time
 What:		/sys/.../iio:deviceX/in_intensity_green_integration_time
 What:		/sys/.../iio:deviceX/in_intensity_blue_integration_time
@@ -1342,7 +1356,8 @@ KernelVersion:	3.12
 Contact:	linux-iio@...r.kernel.org
 Description:
 		This attribute is used to get/set the integration time in
-		seconds.
+		seconds. If shared across all channels of a given type,
+		<type>_integration_time is used.
 
 What:		/sys/.../iio:deviceX/in_velocity_sqrt(x^2+y^2+z^2)_integration_time
 KernelVersion:	4.0
@@ -1739,3 +1754,12 @@ KernelVersion:	5.5
 Contact:	linux-iio@...r.kernel.org
 Description:
 		One of the following thermocouple types: B, E, J, K, N, R, S, T.
+
+What:		/sys/bus/iio/devices/iio:deviceX/in_intensity_x_raw
+What:		/sys/bus/iio/devices/iio:deviceX/in_intensity_y_raw
+What:		/sys/bus/iio/devices/iio:deviceX/in_intensity_z_raw
+KernelVersion:	5.10
+Contact:	linux-iio@...r.kernel.org
+Description:
+		Unscaled light intensity according to CIE 1931/DIN 5033 color space.
+		Units after application of scale are nano nanowatts per square meter.
-- 
Christian Eggers
Embedded software developer

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