xref: /illumos-gate/usr/src/man/man9f/ddi_get_driver_private.9f (revision 34bbc83afbf22a6f8e504cb99d76c97c017cb5f4)
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DDI_GET_DRIVER_PRIVATE 9F "Feb 17, 2023"
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
illumos DDI specific (illumos 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