DDI_DMA_FREE_HANDLE(9F) Kernel Functions for Drivers DDI_DMA_FREE_HANDLE(9F)

ddi_dma_free_handle - free DMA handle

#include <sys/ddi.h>
#include <sys/sunddi.h>
void ddi_dma_free_handle(ddi_dma_handle_t *handle);

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

illumos DDI specific (illumos DDI).

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.

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

ddi_dma_alloc_handle(9F), ddi_dma_unbind_handle(9F)

Writing Device Drivers

September 26, 1994 OmniOS