NAME

     OF_child, OF_parent, OF_peer — navigate device tree

SYNOPSIS

     #include <dev/ofw/ofw_bus.h>
     #include <dev/ofw/ofw_bus_subr.h>

     phandle_t
     OF_child(phandle_t node);

     phandle_t
     OF_parent(phandle_t node);

     phandle_t
     OF_peer(phandle_t node);

DESCRIPTION

     OF_child() returns the phandle value of the first child of the node.  Zero is returned if
     there are no child nodes.

     OF_parent() returns the phandle for the parent of the node.  Zero is returned if node is the
     root node.

     OF_peer() returns the phandle value of the next sibling of the node.  Zero is returned if
     there is no sibling node.

EXAMPLES

     phandle_t node, child;
      ...
     for (child = OF_child(node); child != 0; child = OF_peer(child) {
             ...
     }

SEE ALSO

     OF_finddevice(9)

AUTHORS

     This manual page was written by Oleksandr Tymoshenko <gonzo@FreeBSD.org>.