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ddi_dma_htoc - convert a DMA handle to a DMA address cookie

#include <sys/conf.h>
#include <sys/ddi.h>
#include <sys/sunddi.h>



int ddi_dma_htoc(ddi_dma_handle_t handle, off_t off, 
 ddi_dma_cookie_t *cookiep);

This interface is obsolete. ddi_dma_addr_bind_handle(9F) or ddi_dma_buf_bind_handle(9F) should be used instead.

handle

off

cookiep

The ddi_dma_htoc() function takes a DMA handle (established by ddi_dma_setup(9F)), and fills in the cookie pointed to by cookiep with the appropriate address, length, and bus type to be used to program the DMA engine.

The ddi_dma_htoc() function returns:

DDI_SUCCESS

DDI_FAILURE

The ddi_dma_htoc() function can be called from user, interrupt, or kernel context.

See attributes(5) for a description of the following attributes:

ATTRIBUTE TYPE	ATTRIBUTE VALUE
Stability Level	Obsolete

attributes(5), ddi_dma_addr_bind_handle(9F), ddi_dma_addr_setup(9F), ddi_dma_buf_bind_handle(9F), ddi_dma_buf_setup(9F), ddi_dma_setup(9F), ddi_dma_sync(9F), ddi_dma_cookie(9S)

Writing Device Drivers