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docs: iio: add precision about sampling_frequency_available

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

Signed-off-by: Fabien Lahoudere <fabien.lahoudere@collabora.com>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
This commit is contained in:
Fabien Lahoudere 2019-05-23 11:07:37 +02:00 committed by Jonathan Cameron
parent d711a3c7dc
commit 26207c7e78
1 changed files with 5 additions and 2 deletions
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7
Documentation/ABI/testing/sysfs-bus-iio
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@ -61,8 +61,11 @@ What: /sys/bus/iio/devices/triggerX/sampling_frequency_available
KernelVersion: 2.6.35
Contact: linux-iio@vger.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