xfree86 man page for ddi_dma_numwin

Query: ddi_dma_numwin

OS: xfree86

Section: 9f

Format: Original Unix Latex Style Formatted with HTML and a Horizontal Scroll Bar

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

NAME
ddi_dma_numwin - retrieve number of DMA windows SYNOPSIS
#include <sys/ddi.h> #include <sys/sunddi.h> int ddi_dma_numwin(ddi_dma_handle_t handle, uint_t *nwinp); PARAMETERS
handle The DMA handle previously allocated by a call to ddi_dma_alloc_handle(9F). nwinp Upon a successful return, nwinp will contain the number of DMA windows for this object. INTERFACE LEVEL
Solaris DDI specific (Solaris DDI). DESCRIPTION
ddi_dma_numwin() returns the number of DMA windows for a DMA object if partial resource allocation was permitted. RETURN VALUES
ddi_dma_numwin() returns: DDI_SUCCESS Successfully filled in the number of DMA windows. DDI_FAILURE DMA windows are not activated. CONTEXT
ddi_dma_numwin() 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_unbind_handle(9F) Writing Device Drivers SunOS 5.10 29 Sep 1994 ddi_dma_numwin(9F)
Related Man Pages
ddi_dma_getwin(9f) - opensolaris
ddi_dma_getwin(9f) - sunos
ddi_dma_getwin(9f) - centos
ddi_dma_getwin(9f) - linux
ddi_dma_numwin(9f) - xfree86
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