ddi_root_node(9f) [opensolaris man page]

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

NAME

       ddi_root_node - get the root of the dev_info tree

SYNOPSIS

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

       dev_info_t  *ddi_root_node(void);

INTERFACE LEVEL

       Solaris DDI specific (Solaris DDI).

DESCRIPTION

       The ddi_root_node() function returns a pointer to the root node of the device information tree.

RETURN VALUES

       The ddi_root_node() function returns a pointer to a device information structure.

CONTEXT

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

SEE ALSO

       Writing Device Drivers

SunOS 5.11							    16 Jan 2006 						 ddi_root_node(9F)

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

NAME

       ddi_dev_nintrs - return the number of interrupt specifications a device has

SYNOPSIS

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

       int ddi_dev_nintrs(dev_info_t *dip, int *resultp);

INTERFACE LEVEL

       Solaris	DDI specific (Solaris DDI). This interface is obsolete. Use the new interrupt interfaces referenced in Intro(9F). Refer to Writing
       Device Drivers for more information.

DESCRIPTION

       The ddi_dev_nintrs() function returns the number of interrupt specifications a device has in *resultp.

RETURN VALUES

       The ddi_dev_nintrs() function returns:

       DDI_SUCCESS    A successful return. The number of interrupt specifications that the device has is set in resultp.

       DDI_FAILURE    The device has no interrupt specifications.

CONTEXT

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

ATTRIBUTES

       See attributes(5) for descriptions of the following attributes:

       +-----------------------------+-----------------------------+
       |      ATTRIBUTE TYPE	     |	    ATTRIBUTE VALUE	   |
       +-----------------------------+-----------------------------+
       |Interface Stability	     |Obsolete			   |
       +-----------------------------+-----------------------------+

SEE ALSO

       isa(4), sbus(4), ddi_add_intr(9F), ddi_dev_nregs(9F), ddi_dev_regsize(9F), Intro(9F)

       Writing Device Drivers

SunOS 5.11							    16 Jan 2006 						ddi_dev_nintrs(9F)