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Manual page for ddi_dma_unbind_handle(9F)

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);

ARGUMENTS

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_dma_unbind_handle() returns:
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_free_handle.9f

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Created by unroff & hp-tools. © by Hans-Peter Bischof. All Rights Reserved (1997).

Last modified 21/April/97