DDI_GET_DRIVER_PRIVATE(9F) Kernel Functions for Drivers


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, void *data);


void *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


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


The ddi_set_driver_private() function 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


The ddi_get_driver_private() function 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 , interrupt, or kernel context.

SEE ALSO


Writing Device Drivers


January 16, 2006 DDI_GET_DRIVER_PRIVATE(9F)