DDI_SLAVEONLY(9F) Kernel Functions for Drivers DDI_SLAVEONLY(9F)

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

January 16, 2006 DDI_SLAVEONLY(9F)