di_walk_link man page on SmartOS

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DI_WALK_LINK(3DEVINFO)					DI_WALK_LINK(3DEVINFO)

NAME
       di_walk_link - traverse libdevinfo links

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

       int di_walk_link(di_node_t root, uint_t flag, uint_t endpoint, void *arg,
	    int (*link_callback)(di_link_t link, void *arg));

PARAMETERS
       root
			The handle to the root node of the subtree to visit.

       flag
			Specify 0. Reserved for future use.

       endpoint
			Specify	 if  the  current node being visited should be
			the target or source of an link, either DI_LINK_TGT or
			DI_LINK_SRC

       arg
			A pointer to caller-specific data.

       link_callback
			The caller-supplied callback function.

DESCRIPTION
       The  di_walk_link()  function visits all nodes in the subtree rooted at
       root.  For each node found,  the	 caller-supplied  function  link_call‐
       back()  is  invoked  for each link associated with that node where that
       node is the specified endpoint  of  the	link.	The  return  value  of
       link_callback()	specifies subsequent walking behavior. See RETURN VAL‐
       UES.

RETURN VALUES
       Upon successful completion, di_walk_link() returns 0.  Otherwise, -1 is
       returned and errno is set to indicate the error.

       The  callback  function, link_callback(), can return one of the follow‐
       ing:

       DI_WALK_CONTINUE
			    Continue walking.

       DI_WALK_TERMINATE
			    Terminate the walk immediately.

ERRORS
       The di_walk_link() function will fail if:

       EINVAL
		 An argument is invalid.

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

       ┌────────────────────┬─────────────────┐
       │  ATTRIBUTE TYPE    │ ATTRIBUTE VALUE │
       ├────────────────────┼─────────────────┤
       │Interface Stability │ Evolving	      │
       ├────────────────────┼─────────────────┤
       │MT-Level	    │ Safe	      │
       └────────────────────┴─────────────────┘

SEE ALSO
       di_init(3DEVINFO), libdevinfo(3LIB), attributes(5)

				 Mar 22, 2004		DI_WALK_LINK(3DEVINFO)
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