4 An IIO device can be directly connected to another device in hardware. In this
5 case the buffers between IIO provider and IIO consumer are handled by hardware.
6 The Industrial I/O HW consumer offers a way to bond these IIO devices without
7 software buffer for data. The implementation can be found under
8 :file:`drivers/iio/buffer/hw-consumer.c`
11 * struct :c:type:`iio_hw_consumer` — Hardware consumer structure
12 * :c:func:`iio_hw_consumer_alloc` — Allocate IIO hardware consumer
13 * :c:func:`iio_hw_consumer_free` — Free IIO hardware consumer
14 * :c:func:`iio_hw_consumer_enable` — Enable IIO hardware consumer
15 * :c:func:`iio_hw_consumer_disable` — Disable IIO hardware consumer
21 As standard IIO device the implementation is based on IIO provider/consumer.
22 A typical IIO HW consumer setup looks like this::
24 static struct iio_hw_consumer *hwc;
26 static const struct iio_info adc_info = {
27 .read_raw = adc_read_raw,
30 static int adc_read_raw(struct iio_dev *indio_dev,
31 struct iio_chan_spec const *chan, int *val,
34 ret = iio_hw_consumer_enable(hwc);
38 ret = iio_hw_consumer_disable(hwc);
41 static int adc_probe(struct platform_device *pdev)
43 hwc = devm_iio_hw_consumer_alloc(&iio->dev);
48 .. kernel-doc:: drivers/iio/buffer/industrialio-hw-consumer.c