linux-kernel - [PATCH] iio: improve IIO_CONCENTRATION channel type description

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Message-ID: <20200601161552.34579-1-tomasz.duszynski@octakon.com>
Date:   Mon, 1 Jun 2020 18:15:52 +0200
From:   Tomasz Duszynski <tomasz.duszynski@...akon.com>
To:     <linux-iio@...r.kernel.org>
CC:     <linux-kernel@...r.kernel.org>, <mranostay@...il.com>,
        <jic23@...nel.org>, Tomasz Duszynski <tomasz.duszynski@...akon.com>
Subject: [PATCH] iio: improve IIO_CONCENTRATION channel type description

IIO_CONCENTRATION together with INFO_RAW specifier is used for reporting
raw concentrations of pollutants. Raw value should be meaningless
before being properly scaled. Because of that description shouldn't
mention raw value unit whatsoever.

Fix this by rephrasing existing description so it follows conventions
used throughout IIO ABI docs.

Fixes: 8ff6b3bc94930 ("iio: chemical: Add IIO_CONCENTRATION channel type")
Signed-off-by: Tomasz Duszynski <tomasz.duszynski@...akon.com>
---
 Documentation/ABI/testing/sysfs-bus-iio | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/Documentation/ABI/testing/sysfs-bus-iio b/Documentation/ABI/testing/sysfs-bus-iio
index d3e53a6d8331..5c62bfb0f3f5 100644
--- a/Documentation/ABI/testing/sysfs-bus-iio
+++ b/Documentation/ABI/testing/sysfs-bus-iio
@@ -1569,7 +1569,8 @@ What:		/sys/bus/iio/devices/iio:deviceX/in_concentrationX_voc_raw
 KernelVersion:	4.3
 Contact:	linux-iio@...r.kernel.org
 Description:
-		Raw (unscaled no offset etc.) percentage reading of a substance.
+		Raw (unscaled no offset etc.) reading of a substance. Units
+		after application of scale and offset are percents.
 
 What:		/sys/bus/iio/devices/iio:deviceX/in_resistance_raw
 What:		/sys/bus/iio/devices/iio:deviceX/in_resistanceX_raw
-- 
2.26.2