problem implementing fork Post: 302360987

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ddi_dma_unbind_handle

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

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

SunOS 5.10							    26 Sep 1994 					 ddi_dma_unbind_handle(9F)