root/include/linux/dma-direction.h

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INCLUDED FROM

#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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