ddi_driver_name 

return normalized driver name 

ddi_node_name 

return the devinfo node name 

ddi_get_name 

return driver binding name 

ddi_binding_name 

return driver binding name 

ddi_dev_is_sid 

tell whether a device is self-identifying 

ddi_get_instance 

get device instance number 

ddi_get_devstate 

check device state 

ddi_get_parent 

find the parent of a device information structure 

ddi_root_node 

get the root of the dev_info tree