d_map_disable Kernel Service
Purpose
Disables DMA for the specified handle.
Syntax
#include <sys/dma.h>int d_map_disable(*handle)
struct d_handle *handle;Parameters
| Item | Description |
|---|---|
| handle | Indicates the unique handle returned by d_map_init. |
Description
The d_map_disable kernel service is a bus-specific utility routine determined by the d_map_init kernel service that disables DMA for the specified handle with respect to the platform.
Note: You can use the D_MAP_DISABLE macro
provided in the /usr/include/sys/dma.h file to code calls to
the d_map_disable kernel service.
Return Values
| Item | Description |
|---|---|
| DMA_SUCC | Indicates the DMA is successfully disabled. |
| DMA_FAIL | Indicates the DMA could not be explicitly disabled for this device or bus. |