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'\" te
.\" Copyright (c) 2005, 4Front Technologies 2005\&.
.TH ossddk_dmap_get_dmabuf 9ossddk "12 Sep 2005" "SunOS 5.10" "OSS DDK Services"
.SH "NAME"
ossddk_dmap_get_dmabuf \- Get (kernel) address of the DMA buffer
.PP
.SH "SYNOPSIS"
.nf
#include <sys/soundcard.h>
.LP
#include <sys/ossddk/ossddk.h>
.fi
.LP
\fBunsigned char*\fR ossddk_dmap_get_dmabuf(\fBdmap_t *\fIdmap\fP);
.PP
.SH "INTERFACE LEVEL"
.PP
Open Sound System specific (OSS 4.0 DDK)\&.
.PP
.SH "ARGUMENTS"
.PP
.sp
.ne 2
.mk
\fB\fIdmap\fR
.in +16n
.rt
Audio buffer handle.
.in -16n
.PP
.SH "DESCRIPTION"
.PP
This function returns the kernel virtual address of the DMA buffer allocated
for this dmap, However in most drivers this value has no use. Instead they
should use \fIossddk_dmap_set_phys(9ossddk)\fR to get the memory/bus address
of the buffer.
.PP
.SH "RETURN VALUES"
Kernel virtual address of the DMA buffer (first byte) or NULL if no buffer
is currently allocated.
.PP
.SH "SEE ALSO"
.PP
\fIWriting Sound Device Drivers with OSS DDK\fR
.LP
\fIOpen Sound System Programmer's Guide\fR
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