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IIO: consumer: allow to set buffer sizes

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Add iio consumer API to set buffer size and watermark according
to sysfs API.

Signed-off-by: Arnaud Pouliquen <arnaud.pouliquen@st.com>
Reviewed-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
This commit is contained in:
Arnaud Pouliquen
2018-01-10 11:13:13 +01:00
committed by Mark Brown
parent eca949800d
commit 16cbca06fa
2 changed files with 22 additions and 0 deletions
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11
include/linux/iio/consumer.h
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@@ -133,6 +133,17 @@ struct iio_cb_buffer *iio_channel_get_all_cb(struct device *dev,
int (*cb)(const void *data,
void *private),
void *private);
/**
* iio_channel_cb_set_buffer_watermark() - set the buffer watermark.
* @cb_buffer: The callback buffer from whom we want the channel
* information.
* @watermark: buffer watermark in bytes.
*
* This function allows to configure the buffer watermark.
*/
int iio_channel_cb_set_buffer_watermark(struct iio_cb_buffer *cb_buffer,
size_t watermark);
/**
* iio_channel_release_all_cb() - release and unregister the callback.
* @cb_buffer: The callback buffer that was allocated.