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.TH "IDE_START_DMA" "" "06 October 2005" "" ""

.SH NAME
ide_start_dma \- begin a DMA phase
.SH SYNOPSIS
"SYNOPSIS"
.sp
\fB
.sp
int ide_start_dma  (ide_hwif_t * \fIhwif\fB, ide_drive_t * \fIdrive\fB, int \fIreading\fB);
\fR
.SH "ARGUMENTS"
.TP
\fB\fIhwif\fB\fR
interface
.TP
\fB\fIdrive\fB\fR
target device
.TP
\fB\fIreading\fB\fR
set if reading, clear if writing
.SH "DESCRIPTION"
.PP
Build an IDE DMA PRD (IDE speak for scatter gather table)
and then set up the DMA transfer registers for a device
that follows generic IDE PCI DMA behaviour. Controllers can
override this function if they need to
.PP
Returns 0 on success. If a PIO fallback is required then 1
is returned.