cregit-Linux how code gets into the kernel

Release 4.12 include/uapi/linux/dma-buf.h

 * Framework for buffer objects that can be shared across devices/subsystems.
 * Copyright(C) 2015 Intel Ltd
 * This program is free software; you can redistribute it and/or modify it
 * under the terms of the GNU General Public License version 2 as published by
 * the Free Software Foundation.
 * This program is distributed in the hope that it will be useful, but WITHOUT
 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
 * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
 * more details.
 * You should have received a copy of the GNU General Public License along with
 * this program.  If not, see <>.

#ifndef _DMA_BUF_UAPI_H_

#define _DMA_BUF_UAPI_H_

#include <linux/types.h>

/* begin/end dma-buf functions used for userspace mmap. */

struct dma_buf_sync {
__u64 flags;

#define DMA_BUF_SYNC_READ      (1 << 0)

#define DMA_BUF_SYNC_WRITE     (2 << 0)


#define DMA_BUF_SYNC_START     (0 << 2)

#define DMA_BUF_SYNC_END       (1 << 2)


#define DMA_BUF_BASE		'b'

#define DMA_BUF_IOCTL_SYNC	_IOW(DMA_BUF_BASE, 0, struct dma_buf_sync)


Overall Contributors

Daniel Vetter54100.00%1100.00%
Information contained on this website is for historical information purposes only and does not indicate or represent copyright ownership.
Created with cregit.