1 /* SPDX-License-Identifier: GPL-2.0 */ 2 #ifndef _LINUX_DMA_DIRECTION_H 3 #define _LINUX_DMA_DIRECTION_H 4 /* 5 * These definitions mirror those in pci.h, so they can be used 6 * interchangeably with their PCI_ counterparts. 7 */ 8 enum dma_data_direction { 9 DMA_BIDIRECTIONAL = 0, 10 DMA_TO_DEVICE = 1, 11 DMA_FROM_DEVICE = 2, 12 DMA_NONE = 3, 13 }; 14 #endif 15