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iio: buffer: rename 'read_first_n' callback to 'read'

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It is implied that 'read' will read the first n bytes and not e.g. bytes
only from offsets within the buffer that are a prime number.

This change is non-functional, mostly just a rename.
A secondary intent with this patch is to make room later to add a write
callback.

Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
Signed-off-by: Alexandru Ardelean <alexandru.ardelean@analog.com>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
This commit is contained in:
Lars-Peter Clausen 2019-12-11 12:43:00 +02:00 • committed by Jonathan Cameron
parent 4538c18568
commit f6d4033d2a
7 changed files with 16 additions and 19 deletions
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6
include/linux/iio/buffer_impl.h
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@ -18,7 +18,7 @@ struct iio_buffer;
/**
* struct iio_buffer_access_funcs - access functions for buffers.
* @store_to: actually store stuff to the buffer
* @read_first_n: try to get a specified number of bytes (must exist)
* @read: try to get a specified number of bytes (must exist)
* @data_available: indicates how much data is available for reading from
* the buffer.
* @request_update: if a parameter change has been marked, update underlying
@ -45,9 +45,7 @@ struct iio_buffer;
**/
struct iio_buffer_access_funcs {
int (*store_to)(struct iio_buffer *buffer, const void *data);
int (*read_first_n)(struct iio_buffer *buffer,
size_t n,
char __user *buf);
int (*read)(struct iio_buffer *buffer, size_t n, char __user *buf);
size_t (*data_available)(struct iio_buffer *buffer);
int (*request_update)(struct iio_buffer *buffer);