[PATCH v2 09/10] iio: ABI: add integration_time for output channels

[Rodrigo Alencar via B4 Relay]

From: Rodrigo Alencar <rodrigo.alencar@xxxxxxxxxx>

Document the integration_time attribute for output channels, which is
the time interval during which the output is generated by integrating
a quantity, such as its rate of change. It is the output counterpart of
the integration_time already defined for input channels.
Add entries for the altcurrent, frequency and phase channel types, which
are going to be used by the AD9910 DDS driver.

Reviewed-by: Nuno Sá <nuno.sa@xxxxxxxxxx>
Signed-off-by: Rodrigo Alencar <rodrigo.alencar@xxxxxxxxxx>
---
 Documentation/ABI/testing/sysfs-bus-iio | 17 +++++++++++++++++
 1 file changed, 17 insertions(+)

diff --git a/Documentation/ABI/testing/sysfs-bus-iio b/Documentation/ABI/testing/sysfs-bus-iio
index 2b6f57041763..b09254a57438 100644
--- a/Documentation/ABI/testing/sysfs-bus-iio
+++ b/Documentation/ABI/testing/sysfs-bus-iio
@@ -1744,6 +1744,23 @@ Description:
 		seconds. If shared across all channels of a given type,
 		<type>_integration_time is used.
 
+What:		/sys/bus/iio/devices/iio:deviceX/out_altcurrentY_integration_time
+What:		/sys/bus/iio/devices/iio:deviceX/out_frequencyY_integration_time
+What:		/sys/bus/iio/devices/iio:deviceX/out_phaseY_integration_time
+KernelVersion:	7.5
+Contact:	linux-iio@xxxxxxxxxxxxxxx
+Description:
+		This attribute is used to get/set the integration time in
+		seconds of an output channel, i.e., the time interval during
+		which the output is generated by integrating (accumulating) a
+		quantity over time, such as the rate of change (roc) of the
+		channel. The output variation over this interval corresponds to
+		the integral of that quantity, which may be bounded by limits
+		configured through other channel attributes. The written value
+		may be adjusted to the nearest interval supported by the
+		hardware. 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
 Contact:	linux-iio@xxxxxxxxxxxxxxx

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2.43.0