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| Kernel Functions for Drivers | ddi_dma_unbind_handle(9F) |
| | ddi_dma_unbind_handle - unbinds the address in a DMA handle |
SYNOPSIS
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#include <sys/ddi.h>
#include <sys/sunddi.h>
int ddi_dma_unbind_handle(ddi_dma_handle_t handle); |
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Solaris DDI specific (Solaris DDI).
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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.
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DDI_SUCCESS
- on success
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DDI_FAILURE
- on failure
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ddi_dma_unbind_handle() can be called from user, kernel, or interrupt context.
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