opensolaris man page for ddi_dev_nregs

ddi_dev_nregs(9F)					   Kernel Functions for Drivers 					 ddi_dev_nregs(9F)

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).

PARAMETERS
       dip	  A pointer to the device's dev_info structure.

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

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

RETURN VALUES
       The ddi_dev_nregs() function returns:

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

       DDI_FAILURE    The device has no registers.

CONTEXT
       The ddi_dev_nregs() function can be called from user, interrupt, or kernel context.

SEE ALSO
       ddi_dev_nintrs(9F), ddi_dev_regsize(9F)

       Writing Device Drivers

SunOS 5.11							    16 Jan 2006 						 ddi_dev_nregs(9F)