xref: /titanic_51/usr/src/man/man9f/ddi_slaveonly.9f (revision 0d928757379972073af9fb22bdc827b74e8ba6ac)
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Copyright (c) 2006, Sun Microsystems, Inc.
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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

Solaris DDI specific (Solaris 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