ddi_dev_nregs(9f) sunos man page | unix.com

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

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

SunOS 5.10							    24 Oct 1991 						 ddi_dev_nregs(9F)