SVR5
dma_free_cb(D3)
dma_free_cb --
free a previously allocated DMA command block
Synopsis
#include <sys/dma.h>
#include <sys/ddi.h>
void dma_free_cb(struct dma_cb *dmacbptr);
Description
dma_free_cb frees a DMA command block
that was used for DMA transfers
on ISA, EISA, or MCA
DMA channels.
Arguments
dmacbptr-
Address of the allocated DMA command block to be returned.
Return values
None.
Usage
The dmacbptr argument must specify the address
of a DMA command block previously allocated by
dma_get_cb(D3).
Context and synchronization
All
contexts.
Hardware applicability
PC-AT compatible platforms
with ISA, EISA, or MCA buses
Version applicability
ddi:
1, 2, 3, 4, 5, 5mp, 6, 6mp, 7, 7mp, 7.1, 7.1mp, 8, 8mp
Future directions
This interface is expected to be replaced or modified in a future release.
References
dma_get_cb(D3),
dma_cb(D4)
``DMA'' in HDK Technical Reference
19 June 2005
© 2005 The SCO Group, Inc. All rights reserved.
OpenServer 6 and UnixWare (SVR5) HDK - June 2005