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docs: iio: ad4062: Add IIO Trigger support
Explains the IIO Trigger support and timings involved.
Signed-off-by: Jorge Marques <jorge.marques@analog.com>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
authored by
Jorge Marques
and committed by
Jonathan Cameron
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d5284402
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Documentation/iio/ad4062.rst
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Documentation/iio/ad4062.rst
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The device enters low-power mode on idle to save power. Enabling an event puts
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the device out of the low-power since the ADC autonomously samples to assert
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the event condition.
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IIO trigger support
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===================
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An IIO trigger ``ad4062-devX`` is registered by the driver to be used by the
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same device, to capture samples to a software buffer. It is required to attach
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the trigger to the device by setting the ``current_trigger`` before enabling
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and reading the buffer.
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The acquisition is sequential and bounded by the protocol timings, software
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latency and internal timings, the sample rate is not configurable. The burst
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averaging mode does impact the effective sample rate, since it increases the
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internal timing to output a single sample.