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* videobuf2-dma-sg.h - DMA scatter/gather memory allocator for videobuf2
* Copyright (C) 2010 Samsung Electronics
* Author: Andrzej Pietrasiewicz <>
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation.
#include <media/videobuf2-core.h>
struct vb2_dma_sg_desc {
unsigned long size;
unsigned int num_pages;
struct scatterlist *sglist;
static inline struct vb2_dma_sg_desc *vb2_dma_sg_plane_desc(
struct vb2_buffer *vb, unsigned int plane_no)
return (struct vb2_dma_sg_desc *)vb2_plane_cookie(vb, plane_no);
extern const struct vb2_mem_ops vb2_dma_sg_memops;