Manual Pages for UNIX Operating System command usage for man ddi_dma_unbind_handle

Kernel Functions for Drivers            ddi_dma_unbind_handle(9F)



NAME
     ddi_dma_unbind_handle - unbinds the address in a DMA handle

SYNOPSIS
     #include 
     #include 



     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 com-
     pletes, 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 5.11          Last change: 26 Sep 1994                    1