iio: distance: srf08: add driver ABI documentation
Add sysfs-bus-iio-distance-srf08 for individual attributes of the driver, especially: - sensitivity which the device documentation calls gain for amplifying the signal - max_range for limiting the maximum distance for expected echos and therefore limiting the time waiting for telegrams Signed-off-by: Andreas Klinger <ak@it-klinger.de> Signed-off-by: Jonathan Cameron <jic23@kernel.org>
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Documentation/ABI/testing/sysfs-bus-iio-distance-srf08
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Documentation/ABI/testing/sysfs-bus-iio-distance-srf08
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What /sys/bus/iio/devices/iio:deviceX/sensor_sensitivity
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Date: January 2017
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KernelVersion: 4.11
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Contact: linux-iio@vger.kernel.org
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Description:
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Show or set the gain boost of the amp, from 0-31 range.
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default 31
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What /sys/bus/iio/devices/iio:deviceX/sensor_max_range
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Date: January 2017
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KernelVersion: 4.11
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Contact: linux-iio@vger.kernel.org
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Description:
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Show or set the maximum range between the sensor and the
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first object echoed in meters. Default value is 6.020.
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This setting limits the time the driver is waiting for a
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echo.
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Showing the range of available values is represented as the
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minimum value, the step and the maximum value, all enclosed
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in square brackets.
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Example:
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[0.043 0.043 11.008]
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