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1===========2HW consumer3===========4An IIO device can be directly connected to another device in hardware. In this5case the buffers between IIO provider and IIO consumer are handled by hardware.6The Industrial I/O HW consumer offers a way to bond these IIO devices without7software buffer for data. The implementation can be found under8:file:`drivers/iio/buffer/hw-consumer.c`9 10 11* struct iio_hw_consumer — Hardware consumer structure12* :c:func:`iio_hw_consumer_alloc` — Allocate IIO hardware consumer13* :c:func:`iio_hw_consumer_free` — Free IIO hardware consumer14* :c:func:`iio_hw_consumer_enable` — Enable IIO hardware consumer15* :c:func:`iio_hw_consumer_disable` — Disable IIO hardware consumer16 17 18HW consumer setup19=================20 21As standard IIO device the implementation is based on IIO provider/consumer.22A typical IIO HW consumer setup looks like this::23 24 static struct iio_hw_consumer *hwc;25 26 static const struct iio_info adc_info = {27 .read_raw = adc_read_raw,28 };29 30 static int adc_read_raw(struct iio_dev *indio_dev,31 struct iio_chan_spec const *chan, int *val,32 int *val2, long mask)33 {34 ret = iio_hw_consumer_enable(hwc);35 36 /* Acquire data */37 38 ret = iio_hw_consumer_disable(hwc);39 }40 41 static int adc_probe(struct platform_device *pdev)42 {43 hwc = devm_iio_hw_consumer_alloc(&iio->dev);44 }45 46More details47============48.. kernel-doc:: drivers/iio/buffer/industrialio-hw-consumer.c49 :export:50 51