From 5d65d92045cb7d3b2c45020c0e62d6d1c1d34f37 Mon Sep 17 00:00:00 2001 From: Lars-Peter Clausen Date: Sun, 15 Sep 2013 17:50:00 +0100 Subject: iio: iio_push_to_buffers(): Change type of 'data' to const void * Change the type of the 'data' parameter for iio_push_to_buffers() from 'u8 *' to 'const void *'. Drivers typically use the correct type (e.g. __be16 *) for their data buffer. When passing the buffer to iio_push_to_buffers() it needs to be cast to 'u8 *' for the compiler to not complain (and also having to add __force if we want to keep sparse happy as well). Since the buffer implementation should not care about the data layout (except the size of one sample) using a void pointer is the correct thing to do. Also make it const as the buffer implementations are not supposed to modify it. Signed-off-by: Lars-Peter Clausen Signed-off-by: Jonathan Cameron --- include/linux/iio/buffer.h | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-) (limited to 'include/linux/iio/buffer.h') diff --git a/include/linux/iio/buffer.h b/include/linux/iio/buffer.h index 2bac0eb8948d..e5507e999ed1 100644 --- a/include/linux/iio/buffer.h +++ b/include/linux/iio/buffer.h @@ -36,7 +36,7 @@ struct iio_buffer; * any of them not existing. **/ struct iio_buffer_access_funcs { - int (*store_to)(struct iio_buffer *buffer, u8 *data); + int (*store_to)(struct iio_buffer *buffer, const void *data); int (*read_first_n)(struct iio_buffer *buffer, size_t n, char __user *buf); @@ -81,7 +81,7 @@ struct iio_buffer { bool stufftoread; const struct attribute_group *attrs; struct list_head demux_list; - unsigned char *demux_bounce; + void *demux_bounce; struct list_head buffer_list; }; @@ -120,7 +120,7 @@ int iio_scan_mask_set(struct iio_dev *indio_dev, * @indio_dev: iio_dev structure for device. * @data: Full scan. */ -int iio_push_to_buffers(struct iio_dev *indio_dev, unsigned char *data); +int iio_push_to_buffers(struct iio_dev *indio_dev, const void *data); int iio_update_demux(struct iio_dev *indio_dev); -- cgit