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authorMeizu OpenSource <patchwork@meizu.com>2016-08-15 10:19:42 +0800
committerMeizu OpenSource <patchwork@meizu.com>2016-08-15 10:19:42 +0800
commitd2e1446d81725c351dc73a03b397ce043fb18452 (patch)
tree4dbc616b7f92aea39cd697a9084205ddb805e344 /include/linux/dma-direction.h
first commit
Diffstat (limited to 'include/linux/dma-direction.h')
-rw-r--r--include/linux/dma-direction.h13
1 files changed, 13 insertions, 0 deletions
diff --git a/include/linux/dma-direction.h b/include/linux/dma-direction.h
new file mode 100644
index 000000000..95b6a82f5
--- /dev/null
+++ b/include/linux/dma-direction.h
@@ -0,0 +1,13 @@
+#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