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  con-
     text.

SEE ALSO

     Writing Device Drivers