ddi_dma_unbind_handle man page on SmartOS
[printable version]
DDI_DMA_UNBIND_HANDLE(9F) DDI_DMA_UNBIND_HANDLE(9F)
NAME
ddi_dma_unbind_handle - unbinds the address in a DMA handle
SYNOPSIS
#include <sys/ddi.h>
#include <sys/sunddi.h>
int ddi_dma_unbind_handle(ddi_dma_handle_t handle);
PARAMETERS
handle
The DMA handle previously allocated by a call to
ddi_dma_alloc_handle(9F).
INTERFACE LEVEL
Solaris DDI specific (Solaris DDI).
DESCRIPTION
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.
RETURN VALUES
DDI_SUCCESS
on success
DDI_FAILURE
on failure
CONTEXT
ddi_dma_unbind_handle() can be called from user, kernel, or interrupt
context.
SEE ALSO
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
Sep 26, 1994 DDI_DMA_UNBIND_HANDLE(9F)
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