ATMEL_US_TXBUFE   324 drivers/tty/serial/atmel_serial.c 				ATMEL_US_TXBUFE;
ATMEL_US_TXBUFE   441 drivers/tty/serial/atmel_serial.c 						   ATMEL_US_TXBUFE;
ATMEL_US_TXBUFE  2535 drivers/tty/serial/atmel_serial.c 		atmel_port->tx_done_mask = ATMEL_US_ENDTX | ATMEL_US_TXBUFE;