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

NAME

       ddi_get_driver_private, ddi_set_driver_private - get or set the address of the device's private data area

SYNOPSIS

       #include <sys/conf.h>
       #include <sys/ddi.h>
       #include <sys/sunddi.h>

       void ddi_set_driver_private(dev_info_t *dip, caddr_t data);

       caddr_t ddi_get_driver_private(dev_info_t *dip);

INTERFACE LEVEL

       Solaris DDI specific (Solaris DDI).

PARAMETERS

       ddi_get_driver_private()

       dip	Pointer to device information  structure to get from.

       ddi_set_driver_private()

       dip	Pointer to device information  structure to set.

       data	Data area address to set.

DESCRIPTION

       ddi_get_driver_private() returns the address of the device's private data area from the device information structure pointed to by dip.

       ddi_set_driver_private()  sets the address of the device's private data area in the device information structure pointed to by dip with the
       value of data.

RETURN VALUES

       ddi_get_driver_private() returns the contents of
	devi_driver_data. If ddi_set_driver_private() has not been previously called with dip, an unpredictable value is returned.

CONTEXT

       These functions can be called from user or interrupt context.

SEE ALSO

       Writing Device Drivers

SunOS 5.10							    6 Feb 1995						ddi_get_driver_private(9F)