CDA CD 60 Specifiche Scaricare il pdf (Pagina 34)

PCI CD and PCI CDa

Document Number: 008-00965-06 EDT Public Revision: I December 2004

Template: edt.dot

Page 34

edt_get_rtimeout

Description

Gets the current read timeout value: the number of milliseconds to wait for DMA reads to complete

before returning.

Syntax

#include "edtinc.h"

int edt_get_rtimeout(EdtDev *edt_p);

Arguments

edt_p device handle returned from edt_open or edt_open_channel

Return

The number of milliseconds in the current read timeout period.

edt_set_rtimeout

Description

Sets the number of milliseconds for data read calls, such as edt_read(), to wait for DMA to complete

before returning. A value of 0 causes the I/O operation to wait forever—that is, to block on a read.

Edt_set_rtimeout affects edt_wait_for_buffers (see page XX) and edt_read (see page XX).

Syntax

#include "edtinc.h"

int edt_set_rtimeout(EdtDev *edt_p, int value);

Arguments

edt_p

device handle returned from edt_open or edt_open_channel

value

The number of milliseconds in the timeout period.

Return

0 on success; –1 on error. If an error occurs, call edt_perror() to get the system error message.

edt_get_wtimeout

Description

Gets the current write timeout value: the number of milliseconds to wait for DMA writes to complete

before returning.

Syntax

#include "edtinc.h"

int edt_get_wtimeout(EdtDev *edt_p);

Arguments

edt_p device handle returned from edt_open or edt_open_channel

Return

The number of milliseconds in the current write timeout period.

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CDA CD 60 Specifiche Pagina 34