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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>
This commit is contained in:
Jonathan Cameron 2011-12-05 22:18:27 +00:00 committed by Greg Kroah-Hartman
parent c0e9e6ba34
commit f32971ce0a
1 changed files with 0 additions and 2 deletions
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2
drivers/staging/iio/buffer.h
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@ -21,7 +21,6 @@ struct iio_buffer;
* @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 @@ struct iio_buffer_access_funcs {
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);