Index: uspace/drv/audio/sb16/dma_controller.h
===================================================================
--- uspace/drv/audio/sb16/dma_controller.h	(revision a68e5e23415d46f58fc8a62ef658897552e645e8)
+++ uspace/drv/audio/sb16/dma_controller.h	(revision 4440581db3292ab8fb5c1d4e265dd4fad9bd4fc5)
@@ -37,10 +37,4 @@
 #include <bool.h>
 
-typedef enum {
-	ON_DEMAND = 0x0,
-	SINGLE_DMA = 0x1,
-	BLOCK_DMA = 0x2,
-} transfer_mode_t;
-
 #define DMA_MODE_WRITE (1 << 2)
 #define DMA_MODE_READ (1 << 3)
@@ -49,4 +43,5 @@
 #define DMA_MODE_SINGLE (1 << 6)
 #define DMA_MODE_BLOCK (1 << 7)
+#define DMA_MODE_ON_DEMAND (0)
 
 int dma_setup_channel(