xref: /titanic_50/usr/src/man/man9f/ddi_dma_free_handle.9f (revision 506ea5b80cb420d5edeb6aff19fe035c0a283bb3)
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Copyright (c) 1994, Sun Microsystems, Inc.
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When distributing Covered Code, include this CDDL HEADER in each file and include the License file at usr/src/OPENSOLARIS.LICENSE. If applicable, add the following below this CDDL HEADER, with the fields enclosed by brackets "[]" replaced with your own identifying information: Portions Copyright [yyyy] [name of copyright owner]
DDI_DMA_FREE_HANDLE 9F "Sep 26, 1994"
NAME
ddi_dma_free_handle - free DMA handle
SYNOPSIS

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



void ddi_dma_free_handle(ddi_dma_handle_t *handle);
PARAMETERS
handle

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

INTERFACE LEVEL

Solaris DDI specific (Solaris DDI).

DESCRIPTION

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.

CONTEXT

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

SEE ALSO

ddi_dma_alloc_handle(9F), ddi_dma_unbind_handle(9F)

Writing Device Drivers