NAME

ddi_dev_nregs - return the number of register sets a device has

SYNOPSIS

#include <sys/conf.h>

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

int ddi_dev_nregs(dev_info_t * dip, int * resultp)

INTERFACE LEVEL

Solaris DDI specific (Solaris DDI).

DESCRIPTION

The function ddi_dev_nregs( ) returns the number of sets of registers the device has.

ARGUMENTS

dip

A pointer to the device's dev_info structure.

resultp

Pointer to an integer that holds the number of register sets on return.

RETURN VALUES

ddi_dev_nregs( ) returns:

DDI_SUCCESS

A successful return. The number of register sets is returned in resultp.

DDI_FAILURE

The device has no registers.

CONTEXT

ddi_dev_nregs( ) can be called from user or interrupt context.

SEE ALSO

ddi_dev_nintrs(9F), ddi_dev_regsize(9F)

Writing Device Drivers