Commit 16cbca06 authored by Arnaud Pouliquen's avatar Arnaud Pouliquen Committed by Mark Brown

IIO: consumer: allow to set buffer sizes

Add iio consumer API to set buffer size and watermark according
to sysfs API.
Signed-off-by: default avatarArnaud Pouliquen <arnaud.pouliquen@st.com>
Reviewed-by: default avatarJonathan Cameron <Jonathan.Cameron@huawei.com>
Signed-off-by: default avatarMark Brown <broonie@kernel.org>
parent eca94980
......@@ -104,6 +104,17 @@ struct iio_cb_buffer *iio_channel_get_all_cb(struct device *dev,
}
EXPORT_SYMBOL_GPL(iio_channel_get_all_cb);
int iio_channel_cb_set_buffer_watermark(struct iio_cb_buffer *cb_buff,
size_t watermark)
{
if (!watermark)
return -EINVAL;
cb_buff->buffer.watermark = watermark;
return 0;
}
EXPORT_SYMBOL_GPL(iio_channel_cb_set_buffer_watermark);
int iio_channel_start_all_cb(struct iio_cb_buffer *cb_buff)
{
return iio_update_buffers(cb_buff->indio_dev, &cb_buff->buffer,
......
......@@ -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.
......
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