How to transfer values to modal

Here is my field from where we want to send values to modal

<a  href="<?= '/permissions/edit/'.$permission['id']; ?>">
<button class="btn btn-info btn-icon  btn-icon-mini btn-round"><i class="zmdi zmdi-edit">
  </i></button></a>
</a>     
                                 

-------------------------------------It is our modal---------------------------------

<div class="modal fade" id="modal_popup" tabindex="-1" role="dialog" aria-labelledby="myModalLabel">
      <div class="modal-dialog modal-sm" role="document">
         <form action="<?php echo base_url(); ?>/permissions/status_changed" method="post">
            <div class="modal-content">
               <div class="modal-header" style="height: 150px;">
                  <h4 style="margin-top: 50px;text-align: center;">Are you sure, do you change status?</h4>
                  <input type="hidden" name="id" id="user_id">
                  <input type="hidden" name="status" id="user_status">
               </div>
               <div class="modal-footer">
                  <button type="button" class="btn btn-danger pull-left" data-dismiss="modal">No</button>
                  <button type="submit" name="submit" class="btn btn-success">Yes</button>
               </div>
            </div>
         </form>
      </div>
   </div> 

 //Our Jquery Code

<script type="text/javascript">
       $(function() {
   //For Status Update
    $(".user_status").on("click", function() {
        var firstValue = $(this).data('uid');
        //alert(firstValue);
        var secondValue = $(this).data('ustatus');
        $("#user_id").val(firstValue);
        $("#user_status").val(secondValue);
    });
   
});
    </script>