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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>
hifive-unleashed-5.1
Jonathan Cameron 2017-01-02 19:28:26 +00:00
parent 263cf5e657
commit 9f4667776c
3 changed files with 16 additions and 1 deletions
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3
drivers/iio/accel/bmc150-accel-core.c
View File

@ -1638,7 +1638,8 @@ int bmc150_accel_core_probe(struct device *dev, struct regmap *regmap, int irq,
if (block_supported) {
indio_dev->modes |= INDIO_BUFFER_SOFTWARE;
indio_dev->info = &bmc150_accel_info_fifo;
indio_dev->buffer->attrs = bmc150_accel_fifo_attributes;
iio_buffer_set_attrs(indio_dev->buffer,
bmc150_accel_fifo_attributes);
}
}

12
drivers/iio/industrialio-buffer.c
View File

@ -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)

2
include/linux/iio/buffer.h
View File

@ -17,6 +17,8 @@
struct iio_buffer;
void iio_buffer_set_attrs(struct iio_buffer *buffer,
const struct attribute **attrs);
/**
* INDIO_BUFFER_FLAG_FIXED_WATERMARK - Watermark level of the buffer can not be
* configured. It has a fixed value which will be buffer specific.