DDI_DMA_FREE_HANDLE(9F) Kernel Functions for Drivers

NAME

ddi_dma_free_handle - free DMA handle

SYNOPSIS

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


void ddi_dma_free_handle(ddi_dma_handle_t *handle);

PARAMETERS

handle
A pointer to the DMA handle previously allocated by a
call to ddi_dma_alloc_handle(9F).

INTERFACE LEVEL

illumos DDI specific (illumos DDI).

DESCRIPTION

ddi_dma_free_handle() destroys the DMA handle pointed to by handle.
Any further references to the DMA handle will have undefined
results. Note that ddi_dma_unbind_handle(9F) must be called prior to
ddi_dma_free_handle() to free any resources the system may be caching
on the handle.

CONTEXT

ddi_dma_free_handle() can be called from user, kernel, or interrupt
context.

SEE ALSO

ddi_dma_alloc_handle(9F), ddi_dma_unbind_handle(9F)


Writing Device Drivers

September 26, 1994 DDI_DMA_FREE_HANDLE(9F)