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staging:iio: remove userspace access to bytes per datum.

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There are no known reasons why userspace should want this value.
It can be established from the buffer description anyway.

Signed-off-by: Jonathan Cameron <jic23@cam.ac.uk>
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 22:18:13 +00:00 committed by Greg Kroah-Hartman
parent c15c4f1dea
commit 3771a0a88b
4 changed files with 0 additions and 28 deletions
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9
drivers/staging/iio/buffer.h
View File

@ -192,12 +192,6 @@ ssize_t iio_buffer_write_length(struct device *dev,
struct device_attribute *attr,
const char *buf,
size_t len);
/**
* iio_buffer_read_bytes_per_datum() - attr for number of bytes in whole datum
**/
ssize_t iio_buffer_read_bytes_per_datum(struct device *dev,
struct device_attribute *attr,
char *buf);
/**
* iio_buffer_store_enable() - attr to turn the buffer on
**/
@ -214,9 +208,6 @@ ssize_t iio_buffer_show_enable(struct device *dev,
#define IIO_BUFFER_LENGTH_ATTR DEVICE_ATTR(length, S_IRUGO | S_IWUSR, \
iio_buffer_read_length, \
iio_buffer_write_length)
#define IIO_BUFFER_BYTES_PER_DATUM_ATTR \
DEVICE_ATTR(bytes_per_datum, S_IRUGO | S_IWUSR, \
iio_buffer_read_bytes_per_datum, NULL)
#define IIO_BUFFER_ENABLE_ATTR DEVICE_ATTR(enable, S_IRUGO | S_IWUSR, \
iio_buffer_show_enable, \

15
drivers/staging/iio/industrialio-buffer.c
View File

@ -408,21 +408,6 @@ ssize_t iio_buffer_write_length(struct device *dev,
}
EXPORT_SYMBOL(iio_buffer_write_length);
ssize_t iio_buffer_read_bytes_per_datum(struct device *dev,
struct device_attribute *attr,
char *buf)
{
struct iio_dev *indio_dev = dev_get_drvdata(dev);
struct iio_buffer *buffer = indio_dev->buffer;
if (buffer->access->get_bytes_per_datum)
return sprintf(buf, "%d\n",
buffer->access->get_bytes_per_datum(buffer));
return 0;
}
EXPORT_SYMBOL(iio_buffer_read_bytes_per_datum);
ssize_t iio_buffer_store_enable(struct device *dev,
struct device_attribute *attr,
const char *buf,

2
drivers/staging/iio/kfifo_buf.c
View File

@ -75,12 +75,10 @@ static inline void __iio_init_kfifo(struct iio_kfifo *kf)
}
static IIO_BUFFER_ENABLE_ATTR;
static IIO_BUFFER_BYTES_PER_DATUM_ATTR;
static IIO_BUFFER_LENGTH_ATTR;
static struct attribute *iio_kfifo_attributes[] = {
&dev_attr_length.attr,
&dev_attr_bytes_per_datum.attr,
&dev_attr_enable.attr,
NULL,
};

2
drivers/staging/iio/ring_sw.c
View File

@ -393,13 +393,11 @@ static int iio_mark_update_needed_sw_rb(struct iio_buffer *r)
}
static IIO_BUFFER_ENABLE_ATTR;
static IIO_BUFFER_BYTES_PER_DATUM_ATTR;
static IIO_BUFFER_LENGTH_ATTR;
/* Standard set of ring buffer attributes */
static struct attribute *iio_ring_attributes[] = {
&dev_attr_length.attr,
&dev_attr_bytes_per_datum.attr,
&dev_attr_enable.attr,
NULL,
};