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Kernel Functions for Drivers

ddi_get_driver_private(9F)

INTERFACE LEVEL
PARAMETERS
DESCRIPTION
RETURN VALUES
CONTEXT
SEE ALSO

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.