man/man3devinfo/di_link_next_by_node.3devinfo

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 DI_LINK_NEXT_BY_NODE 3DEVINFO "Jul 12, 2004"
 NAME
di_link_next_by_node, di_link_next_by_lnode - libdevinfo link traversal
functions
 SYNOPSIS

cc [ flag.\|.\|. ] file.\|.\|. -ldevinfo [ library.\|.\|. ]
#include <libdevinfo.h>

di_link_t di_link_next_by_node(di_lnode_t node, di_link_t link,
 uint_t endpoint);


di_link_t di_link_next_by_lnode(di_node_t lnode, di_link_t link,
 uint_t endpoint);


 PARAMETERS
link

The handle to the current the link or DI_LINK_NIL.


endpoint

Specify which endpoint of the link the node or lnode should correspond to,
either DI_LINK_TGT or DI_LINK_SRC.


node

The device node with which the link is associated.


lnode

The lnode with which the link is associated.


 DESCRIPTION

The di_link_next_by_node() function returns a handle to the next link
that has the same endpoint node as link. If link is
DI_LINK_NIL, a handle is returned to the first link whose endpoint
specified by endpoint matches the node specified by node.

The di_link_next_by_lnode() function returns a handle to the next link
that has the same endpoint lnode as link. If link is
DI_LINK_NIL, a handle is returned to the first link whose endpoint
specified by endpoint matches the lnode specified by lnode.
 RETURN VALUES

Upon successful completion, a handle to the next link is returned. Otherwise,
DI_LINK_NIL is returned and errno is set to indicate the error.
 ERRORS

The di_link_next_by_node() and di_link_next_by_lnode() functions
will fail if:
EINVAL

An argument is invalid.


ENXIO

The end of the link list has been reached.


The di_link_next_by_node() function will fail if:
ENOTSUP

Device usage information is not available in snapshot.


 ATTRIBUTES

See attributes(7) for descriptions of the following attributes:


ATTRIBUTE TYPE ATTRIBUTE VALUE
Interface Stability Evolving
MT-Level Safe


 SEE ALSO

 di_init (3DEVINFO),  libdevinfo (3LIB),  attributes (7)