cregit-Linux how code gets into the kernel

Release 4.12 include/media/videobuf-vmalloc.h

Directory: include/media
 * helper functions for vmalloc capture buffers
 * The functions expect the hardware being able to scatter gather
 * (i.e. the buffers are not linear in physical memory, but fragmented
 * into PAGE_SIZE chunks).  They also assume the driver does not need
 * to touch the video data.
 * (c) 2007 Mauro Carvalho Chehab, <>
 * 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; either version 2


#include <media/videobuf-core.h>

/* --------------------------------------------------------------------- */

struct videobuf_vmalloc_memory {
u32                 magic;

void                *vaddr;

	/* remap_vmalloc_range seems to need to run
         * after mmap() on some cases */
struct vm_area_struct *vma;

void videobuf_queue_vmalloc_init(struct videobuf_queue *q,
			 const struct videobuf_queue_ops *ops,
			 struct device *dev,
			 spinlock_t *irqlock,
			 enum v4l2_buf_type type,
			 enum v4l2_field field,
			 unsigned int msize,
			 void *priv,
			 struct mutex *ext_lock);

void *videobuf_to_vmalloc(struct videobuf_buffer *buf);

void videobuf_vmalloc_free(struct videobuf_buffer *buf);


Overall Contributors

Mauro Carvalho Chehab8387.37%222.22%
Hans Verkuil55.26%111.11%
Jonathan Corbet33.16%222.22%
Pawel Osciak11.05%111.11%
Laurent Pinchart11.05%111.11%
Brandon Philips11.05%111.11%
Magnus Damm11.05%111.11%
Directory: include/media
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