Content-type: text/html Man page of ddi_dma_unbind_handle

ddi_dma_unbind_handle

Section: Kernel Functions for Drivers (9F)
Updated: 26 Sep 1994
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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


 

Index

NAME
SYNOPSIS
PARAMETERS
INTERFACE LEVEL
DESCRIPTION
RETURN VALUES
CONTEXT
SEE ALSO

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Time: 02:39:40 GMT, October 02, 2010