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Kernel Functions for Driversddi_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 5.9Go To TopLast Changed 24 Oct 1991

 
      
      
Copyright 2002 Sun Microsystems, Inc. All rights reserved. Use is subject to license terms.