Enables DMA for the specified handle.
#include <sys/dma.h>
int d_map_enable(*handle) struct d_handle *handle;
| handle | Indicates the unique handle returned by d_map_init. |
The d_map_enable kernel service is a bus-specific utility routine determined by the d_map_init kernel service that enables DMA for the specified handle with respect to the platform.
Note: You can use the D_MAP_ENABLE macro provided in the /usr/include/sys/dma.h file to code calls to the d_map_enable kernel service.
| DMA_SUCC | Indicates the DMA is successfully enabled. |
| DMA_FAIL | Indicates the DMA could not be explicitly enabled for this device or bus. |
The d_map_enable kernel service is part of the base device package of your platform.
The d_map_init kernel service.