staging:iio: remove userspace access to bytes per datum.
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>
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@ -192,12 +192,6 @@ ssize_t iio_buffer_write_length(struct device *dev,
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struct device_attribute *attr,
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const char *buf,
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size_t len);
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/**
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* iio_buffer_read_bytes_per_datum() - attr for number of bytes in whole datum
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**/
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ssize_t iio_buffer_read_bytes_per_datum(struct device *dev,
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struct device_attribute *attr,
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char *buf);
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/**
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* iio_buffer_store_enable() - attr to turn the buffer on
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**/
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@ -214,9 +208,6 @@ ssize_t iio_buffer_show_enable(struct device *dev,
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#define IIO_BUFFER_LENGTH_ATTR DEVICE_ATTR(length, S_IRUGO | S_IWUSR, \
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iio_buffer_read_length, \
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iio_buffer_write_length)
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#define IIO_BUFFER_BYTES_PER_DATUM_ATTR \
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DEVICE_ATTR(bytes_per_datum, S_IRUGO | S_IWUSR, \
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iio_buffer_read_bytes_per_datum, NULL)
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#define IIO_BUFFER_ENABLE_ATTR DEVICE_ATTR(enable, S_IRUGO | S_IWUSR, \
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iio_buffer_show_enable, \
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@ -408,21 +408,6 @@ ssize_t iio_buffer_write_length(struct device *dev,
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}
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EXPORT_SYMBOL(iio_buffer_write_length);
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ssize_t iio_buffer_read_bytes_per_datum(struct device *dev,
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struct device_attribute *attr,
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char *buf)
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{
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struct iio_dev *indio_dev = dev_get_drvdata(dev);
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struct iio_buffer *buffer = indio_dev->buffer;
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if (buffer->access->get_bytes_per_datum)
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return sprintf(buf, "%d\n",
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buffer->access->get_bytes_per_datum(buffer));
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return 0;
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}
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EXPORT_SYMBOL(iio_buffer_read_bytes_per_datum);
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ssize_t iio_buffer_store_enable(struct device *dev,
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struct device_attribute *attr,
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const char *buf,
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@ -75,12 +75,10 @@ static inline void __iio_init_kfifo(struct iio_kfifo *kf)
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}
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static IIO_BUFFER_ENABLE_ATTR;
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static IIO_BUFFER_BYTES_PER_DATUM_ATTR;
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static IIO_BUFFER_LENGTH_ATTR;
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static struct attribute *iio_kfifo_attributes[] = {
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&dev_attr_length.attr,
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&dev_attr_bytes_per_datum.attr,
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&dev_attr_enable.attr,
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NULL,
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};
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@ -393,13 +393,11 @@ static int iio_mark_update_needed_sw_rb(struct iio_buffer *r)
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}
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static IIO_BUFFER_ENABLE_ATTR;
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static IIO_BUFFER_BYTES_PER_DATUM_ATTR;
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static IIO_BUFFER_LENGTH_ATTR;
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/* Standard set of ring buffer attributes */
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static struct attribute *iio_ring_attributes[] = {
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&dev_attr_length.attr,
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&dev_attr_bytes_per_datum.attr,
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&dev_attr_enable.attr,
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NULL,
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};
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