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Name

Synopsis

#include <sys/ddi.h>

#include <sys/sunddi.h>

int ddi_dma_free(ddi_dma_handle_t handle);

Interface Level

Solaris DDI specific (Solaris DDI).

Arguments

handle

The handle filled in by a call to ddi_dma_setup(9F) .

Description

ddi_dma_free() releases system DMA resources set up by ddi_dma_setup(9F) . When a DMA transfer completes, the driver should free up system DMA resources established by a call to ddi_dma_setup(9F) . This is done by a call to ddi_dma_free(). ddi_dma_free() does an implicit ddi_dma_sync(9F) for you so any further synchronization steps are not necessary.

Return Values

ddi_dma_free() returns:

DDI_SUCCESS

Successfully released resources

DDI_FAILURE

Failed to free resources

Context

ddi_dma_free() can be called from user or interrupt context.

See Also

Table of Contents

• Name
• Synopsis
• Interface Level
• Arguments
• Description
• Return Values
• Context
• See Also