Haughin's twitter library, can't update status w/ basic auth

[eluser]Noor[/eluser]
Thank you for your reply phill, I like your libraries.

But I don't see any error message here.
Here's my code

Code:

$this->load->library('twitter');
            
$username = "twitter_username";
$password = "twitter_password";
            
$this->twitter->auth($username, $password);

$this->twitter->call('statuses', 'update', array('status' => $this->input->post('status')));

but it's working when I use to read timeline

Code:

$data['timeline'] = $this->twitter->call('statuses/user_timeline');