xref: /illumos-gate/usr/src/man/man9f/ddi_slaveonly.9f (revision ed093b41a93e8563e6e1e5dae0768dda2a7bcc27)
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DDI_SLAVEONLY 9F "Jan 16, 2006"
NAME
ddi_slaveonly - tell if a device is installed in a slave access only location
SYNOPSIS
#include <sys/conf.h>
#include <sys/ddi.h>
#include <sys/sunddi.h>



int ddi_slaveonly(dev_info_t *dip);
INTERFACE LEVEL
illumos DDI specific (illumos DDI).
PARAMETERS
dip

A pointer to the device's dev_info structure.

DESCRIPTION
The ddi_slaveonly() function tells the caller if the bus, or part of the bus that the device is installed on, does not permit the device to become a DMA master, that is, whether the device has been installed in a slave access only slot.
RETURN VALUES
DDI_SUCCESS

The device has been installed in a slave access only location.

DDI_FAILURE

The device has not been installed in a slave access only location.

CONTEXT
The ddi_slaveonly() function can be called from user, interrupt, or kernel context.
SEE ALSO
Writing Device Drivers