linux-kernel - [PATCH 3/3] docs: iio: add precision about sampling_frequency

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Message-Id: <aa050f1c188769a2a135face0d02b24a8ce76589.1558533743.git.fabien.lahoudere@collabora.com>
Date:   Wed, 22 May 2019 16:09:54 +0200
From:   Fabien Lahoudere <fabien.lahoudere@...labora.com>
To:     unlisted-recipients:; (no To-header on input)
Cc:     kernel@...labora.com,
        Fabien Lahoudere <fabien.lahoudere@...labora.com>,
        Jonathan Cameron <jic23@...nel.org>,
        Hartmut Knaack <knaack.h@....de>,
        Lars-Peter Clausen <lars@...afoo.de>,
        Peter Meerwald-Stadler <pmeerw@...erw.net>,
        Benson Leung <bleung@...omium.org>,
        Enric Balletbo i Serra <enric.balletbo@...labora.com>,
        Guenter Roeck <groeck@...omium.org>,
        Lee Jones <lee.jones@...aro.org>,
        Gwendal Grignou <gwendal@...omium.org>,
        linux-iio@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: [PATCH 3/3] docs: iio: add precision about sampling_frequency_available

The documentation give some exemple on what format can be expected
from sampling_frequency_available sysfs attribute

Signed-off-by: Fabien Lahoudere <fabien.lahoudere@...labora.com>
---
 Documentation/ABI/testing/sysfs-bus-iio | 7 +++++--
 1 file changed, 5 insertions(+), 2 deletions(-)

diff --git a/Documentation/ABI/testing/sysfs-bus-iio b/Documentation/ABI/testing/sysfs-bus-iio
index 6aef7dbbde44..680451695422 100644
--- a/Documentation/ABI/testing/sysfs-bus-iio
+++ b/Documentation/ABI/testing/sysfs-bus-iio
@@ -61,8 +61,11 @@ What:		/sys/bus/iio/devices/triggerX/sampling_frequency_available
 KernelVersion:	2.6.35
 Contact:	linux-iio@...r.kernel.org
 Description:
-		When the internal sampling clock can only take a small
-		discrete set of values, this file lists those available.
+		When the internal sampling clock can only take a specific set of
+		frequencies, we can specify the available values with:
+		- a small discrete set of values like "0 2 4 6 8"
+		- a range with minimum, step and maximum frequencies like
+		  "[min step max]"
 
 What:		/sys/bus/iio/devices/iio:deviceX/oversampling_ratio
 KernelVersion:	2.6.38
-- 
2.20.1