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

     Solaris DDI specific (Solaris DDI).

PARAMETERS

     dip   A pointer to the device's dev_info structure.

DESCRIPTION

     ddi_slaveonly() 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

     ddi_slaveonly() can be called from user  or  interrupt  con-
     text.

SEE ALSO

     Writing Device Drivers