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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>
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@ -21,7 +21,6 @@ struct iio_buffer;
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* @mark_in_use: reference counting, typically to prevent module removal
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* @unmark_in_use: reduce reference count when no longer using buffer
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* @store_to: actually store stuff to the buffer
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* @read_last: get the last element stored
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* @read_first_n: try to get a specified number of elements (must exist)
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* @mark_param_change: notify buffer that some relevant parameter has changed
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* Often this means the underlying storage may need to
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@ -48,7 +47,6 @@ struct iio_buffer_access_funcs {
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void (*unmark_in_use)(struct iio_buffer *buffer);
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int (*store_to)(struct iio_buffer *buffer, u8 *data, s64 timestamp);
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int (*read_last)(struct iio_buffer *buffer, u8 *data);
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int (*read_first_n)(struct iio_buffer *buffer,
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size_t n,
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char __user *buf);
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