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Copyright (c) 1994, Sun Microsystems, Inc.
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ddi_dma_unbind_handle - unbinds the address in a DMA handle

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



int ddi_dma_unbind_handle(ddi_dma_handle_t handle);

handle illumos DDI specific (illumos DDI). ddi_dma_unbind_handle() frees all DMA resources associated with an existing DMA handle. When a DMA transfer completes, the driver should call ddi_dma_unbind_handle() to free system DMA resources established by a call to ddi_dma_buf_bind_handle(9F) or ddi_dma_addr_bind_handle(9F). ddi_dma_unbind_handle() does an implicit ddi_dma_sync(9F) making further synchronization steps unnecessary. DDI_SUCCESS DDI_FAILURE ddi_dma_unbind_handle() can be called from user, kernel, or interrupt context. ddi_dma_addr_bind_handle (9F), ddi_dma_alloc_handle (9F), ddi_dma_buf_bind_handle (9F), ddi_dma_free_handle (9F), ddi_dma_sync (9F)

Writing Device Drivers