/*
* videobuf2 - memops . h - generic memory handling routines for videobuf2
*
* Copyright ( C ) 2010 Samsung Electronics
*
* Author : Pawel Osciak < pawel @ osciak . com >
* Marek Szyprowski < m . szyprowski @ samsung . com >
*
* 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 .
*/
#ifndef _MEDIA_VIDEOBUF2_MEMOPS_H
#define _MEDIA_VIDEOBUF2_MEMOPS_H
#include <media/videobuf2-v4l2.h>
#include <linux/mm.h>
#include <linux/refcount.h>
/**
* struct vb2_vmarea_handler - common vma refcount tracking handler .
*
* @ refcount : pointer to & refcount_t entry in the buffer .
* @ put : callback to function that decreases buffer refcount .
* @ arg : argument for @ put callback .
*/
struct vb2_vmarea_handler {
refcount_t *refcount;
void (*put)(void *arg);
void *arg;
};
extern const struct vm_operations_struct vb2_common_vm_ops;
struct frame_vector *vb2_create_framevec(unsigned long start,
unsigned long length,
bool write);
void vb2_destroy_framevec(struct frame_vector *vec);
#endif
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(vorverarbeitet am 2026-09-28)
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