linux-kernel - [PATCH 1/4] iio: ABI: document calibscale

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Message-ID: <20240815-iio-abi-calib-audit-v1-1-536b2fea8620@baylibre.com>
Date: Thu, 15 Aug 2024 12:22:10 -0500
From: David Lechner <dlechner@...libre.com>
To: Jonathan Cameron <jic23@...nel.org>
Cc: David Lechner <dlechner@...libre.com>,
	linux-iio@...r.kernel.org,
	linux-kernel@...r.kernel.org
Subject: [PATCH 1/4] iio: ABI: document calibscale_available attributes

There are a number of light sensor drivers that have various
calibscale_available attributes. Up to now, these were missing from
the documentation.

Kernel version 4.8 is used since the first use appears to be in
commit eb869ade30a6 ("iio: Add tcs3472 color light sensor driver").

Signed-off-by: David Lechner <dlechner@...libre.com>
---
 Documentation/ABI/testing/sysfs-bus-iio | 13 +++++++++++++
 1 file changed, 13 insertions(+)

diff --git a/Documentation/ABI/testing/sysfs-bus-iio b/Documentation/ABI/testing/sysfs-bus-iio
index 78eca1698123..67d8d1df23d4 100644
--- a/Documentation/ABI/testing/sysfs-bus-iio
+++ b/Documentation/ABI/testing/sysfs-bus-iio
@@ -575,6 +575,19 @@ Description:
 		production inaccuracies).  If shared across all channels,
 		<type>_calibscale is used.
 
+What:		/sys/bus/iio/devices/iio:deviceX/in_illuminanceY_calibscale_available
+What:		/sys/bus/iio/devices/iio:deviceX/in_intensityY_calibscale_available
+What:		/sys/bus/iio/devices/iio:deviceX/in_proximityY_calibscale_available
+KernelVersion:	4.8
+Contact:	linux-iio@...r.kernel.org
+Description:
+		Available values of calibscale. Maybe expressed as either of:
+
+		- a small discrete set of values like "1 8 16"
+		- a range specified as "[min step max]"
+
+		If shared across all channels, <type>_calibscale_available is used.
+
 What:		/sys/bus/iio/devices/iio:deviceX/in_activity_calibgender
 What:		/sys/bus/iio/devices/iio:deviceX/in_energy_calibgender
 What:		/sys/bus/iio/devices/iio:deviceX/in_distance_calibgender

-- 
2.43.0