DI_LINK_NEXT_BY_NODE(3DEVINFO) Device Information Library Functions

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)

illumos July 12, 2004 DI_LINK_NEXT_BY_NODE(3DEVINFO)