Name
uart_handle_dcd_change — 
     handle a change of carrier detect state
 
Synopsis
| void uart_handle_dcd_change ( | struct uart_port * uport, | 
|  | unsigned int status ); | 
 
Arguments
- uport
- 
     uart_port structure for the open port
     
- status
- 
     new carrier detect status, nonzero if active
     
Description
   Caller must hold uport->lock