/* * Iterate over all potential children of some device, calling the given * function (default being the child's match function) for each one. * Nonzero returns are matches; the highest value returned is considered * the best match. Return the `found child' if we got a match, or NULL * otherwise. The `aux' pointer is simply passed on through. * * Note that this function is designed so that it can be used to apply * an arbitrary function to all potential children (its return value * can be ignored). */