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-rw-r--r--include/linux/iio/buffer.h4
-rw-r--r--include/linux/iio/buffer_impl.h3
-rw-r--r--include/linux/iio/iio-opaque.h4
3 files changed, 9 insertions, 2 deletions
diff --git a/include/linux/iio/buffer.h b/include/linux/iio/buffer.h
index 8febc23f5f26..b6928ac5c63d 100644
--- a/include/linux/iio/buffer.h
+++ b/include/linux/iio/buffer.h
@@ -41,7 +41,7 @@ static inline int iio_push_to_buffers_with_timestamp(struct iio_dev *indio_dev,
bool iio_validate_scan_mask_onehot(struct iio_dev *indio_dev,
const unsigned long *mask);
-void iio_device_attach_buffer(struct iio_dev *indio_dev,
- struct iio_buffer *buffer);
+int iio_device_attach_buffer(struct iio_dev *indio_dev,
+ struct iio_buffer *buffer);
#endif /* _IIO_BUFFER_GENERIC_H_ */
diff --git a/include/linux/iio/buffer_impl.h b/include/linux/iio/buffer_impl.h
index 41044320e581..768b90c64412 100644
--- a/include/linux/iio/buffer_impl.h
+++ b/include/linux/iio/buffer_impl.h
@@ -112,6 +112,9 @@ struct iio_buffer {
/* @demux_bounce: Buffer for doing gather from incoming scan. */
void *demux_bounce;
+ /* @attached_entry: Entry in the devices list of buffers attached by the driver. */
+ struct list_head attached_entry;
+
/* @buffer_list: Entry in the devices list of current buffers. */
struct list_head buffer_list;
diff --git a/include/linux/iio/iio-opaque.h b/include/linux/iio/iio-opaque.h
index 1a9310b0145f..b6ebc04af3e7 100644
--- a/include/linux/iio/iio-opaque.h
+++ b/include/linux/iio/iio-opaque.h
@@ -7,6 +7,8 @@
* struct iio_dev_opaque - industrial I/O device opaque information
* @indio_dev: public industrial I/O device information
* @event_interface: event chrdevs associated with interrupt lines
+ * @attached_buffers: array of buffers statically attached by the driver
+ * @attached_buffers_cnt: number of buffers in the array of statically attached buffers
* @buffer_list: list of all buffers currently attached
* @channel_attr_list: keep track of automatically created channel
* attributes
@@ -24,6 +26,8 @@
struct iio_dev_opaque {
struct iio_dev indio_dev;
struct iio_event_interface *event_interface;
+ struct iio_buffer **attached_buffers;
+ unsigned int attached_buffers_cnt;
struct list_head buffer_list;
struct list_head channel_attr_list;
struct attribute_group chan_attr_group;