php code to display selected row data inside textbox in codeignitter

I have a single form for add ,view update and delete.

My page contain table with Edit and delete link.

I need when I click on edit link then it will show the selected row data inside text box.

How can I populate the selected row data and display inside a text box?

This is all in codeIgnitter.

plz see the attached screen shots here for refrence of my view
The code is below:

Controller

public function edit()
{
    $id =  $this->input->get('id');
    $this->db->where('id',$id);
    $data['query'] = $this->db->get('categort_tbl');
    $data['id'] = $id;
    $this->load->view('category', $data);
}

public function select()
    {   
        $data['title'] = "Welcome to DB";
        $data['results'] = $this->category_model->getAll();
        $this->load->view('category',$data);
    }

form and list view
category.php

<form name="frm1" method="post" action="<?php echo base_url(); ?>category/save">

<table height="40px">
<tr>
<td width="9%">Category :</td>
<td width="21%"><input type="text" name="category" required=""  size="40" value=""/></td>
<td width="48%"><input type="submit" class="submit_button" name="save" value="Save"/></td>
</tr>

</table>

</form>
</div>





















 
    
Category
     
Date
     
Actions
      
   
        
category; ?>
    
created; ?>
    
id,'Edit')?>
    
id,'Delete',array('onclick' => "return confirm('Do you want delete this record')"))?>