ddi_dma_burstsizes man page on Solaris

ddi_dma_burstsizes man page on Solaris

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ddi_dma_burstsizes(9F)	 Kernel Functions for Drivers	ddi_dma_burstsizes(9F)

NAME
       ddi_dma_burstsizes - find out the allowed burst sizes for a DMA mapping

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

       int ddi_dma_burstsizes(ddi_dma_handle_t handle);

INTERFACE LEVEL
       Solaris DDI specific (Solaris DDI).

PARAMETERS
       handle	       A DMA handle that was filled in by a successful call to
		       ddi_dma_setup(9F).

DESCRIPTION
       ddi_dma_burstsizes() returns the allowed burst sizes for a DMA mapping.
       This   value   is  derived  from	 the  dlim_burstsizes  member  of  the
       ddi_dma_lim_sparc(9S) structure, but it shows the allowable  burstsizes
       after imposing on it the limitations of other device layers in addition
       to device's own limitations.

RETURN VALUES
       ddi_dma_burstsizes() returns a binary encoded value  of	the  allowable
       DMA  burst  sizes.  See	ddi_dma_lim_sparc(9S)  for a discussion of DMA
       burst sizes.

CONTEXT
       This function can be called from user or interrupt context.

SEE ALSO
       ddi_dma_devalign(9F),	 ddi_dma_setup(9F),	ddi_dma_lim_sparc(9S),
       ddi_dma_req(9S)

       Writing Device Drivers

SunOS 5.10			  1 Feb 1994		ddi_dma_burstsizes(9F)

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