staging:iio:buffer stop allowing for read_last callback.
No longer needed now we don't allow sysfs acccess to buffer data.
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
Acked-by: Lars-Peter Clausen <lars@metafoo.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
diff --git a/drivers/staging/iio/buffer.h b/drivers/staging/iio/buffer.h
index 98e9efa..7272333 100644
--- a/drivers/staging/iio/buffer.h
+++ b/drivers/staging/iio/buffer.h
@@ -21,7 +21,6 @@
* @mark_in_use: reference counting, typically to prevent module removal
* @unmark_in_use: reduce reference count when no longer using buffer
* @store_to: actually store stuff to the buffer
- * @read_last: get the last element stored
* @read_first_n: try to get a specified number of elements (must exist)
* @mark_param_change: notify buffer that some relevant parameter has changed
* Often this means the underlying storage may need to
@@ -48,7 +47,6 @@
void (*unmark_in_use)(struct iio_buffer *buffer);
int (*store_to)(struct iio_buffer *buffer, u8 *data, s64 timestamp);
- int (*read_last)(struct iio_buffer *buffer, u8 *data);
int (*read_first_n)(struct iio_buffer *buffer,
size_t n,
char __user *buf);