https://github.com/torvalds/linux
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Tip revision: 4f7d029b9bf009fbee76bb10c0c4351a1870d2f3 authored by Linus Torvalds on 16 April 2017, 20:00:18 UTC
Linux 4.11-rc7
Tip revision: 4f7d029
dma-direction.h
#ifndef _LINUX_DMA_DIRECTION_H
#define _LINUX_DMA_DIRECTION_H
/*
 * These definitions mirror those in pci.h, so they can be used
 * interchangeably with their PCI_ counterparts.
 */
enum dma_data_direction {
	DMA_BIDIRECTIONAL = 0,
	DMA_TO_DEVICE = 1,
	DMA_FROM_DEVICE = 2,
	DMA_NONE = 3,
};
#endif
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