include/linux/dma-direction.h

   1 #ifndef _LINUX_DMA_DIRECTION_H
   2 #define _LINUX_DMA_DIRECTION_H
   3 /*
   4  * These definitions mirror those in pci.h, so they can be used
   5  * interchangeably with their PCI_ counterparts.
   6  */
   7 enum dma_data_direction {
   8         DMA_BIDIRECTIONAL = 0,
   9         DMA_TO_DEVICE = 1,
  10         DMA_FROM_DEVICE = 2,
  11         DMA_NONE = 3,
  12 };
  13 #endif