iio:buffer: Introduced a function to assign the buffer specific attrs.

This is a necessary step in taking the buffer implementation
opaque.

Signed-off-by: Jonathan Cameron <jic23@kernel.org>
Reviewed-by: Lars-Peter Clausen <lars@metafoo.de>

1 files changed, 12 insertions, 0 deletions

diff --git a/drivers/iio/industrialio-buffer.c b/drivers/iio/industrialio-buffer.c
index 9f496eb84e0b..831537cc9500 100644
--- a/drivers/iio/industrialio-buffer.c
+++ b/drivers/iio/industrialio-buffer.c
@@ -209,6 +209,18 @@ void iio_buffer_init(struct iio_buffer *buffer)
 }
 EXPORT_SYMBOL(iio_buffer_init);
 
+/**
+ * iio_buffer_set_attrs - Set buffer specific attributes
+ * @buffer: The buffer for which we are setting attributes
+ * @attrs: Pointer to a null terminated list of pointers to attributes
+ */
+void iio_buffer_set_attrs(struct iio_buffer *buffer,
+			 const struct attribute **attrs)
+{
+	buffer->attrs = attrs;
+}
+EXPORT_SYMBOL_GPL(iio_buffer_set_attrs);
+
 static ssize_t iio_show_scan_index(struct device *dev,
 				   struct device_attribute *attr,
 				   char *buf)