ATMEL_US_DCD 541 drivers/tty/serial/atmel_serial.c if (!(status & ATMEL_US_DCD)) ATMEL_US_DCD 1382 drivers/tty/serial/atmel_serial.c | ATMEL_US_DCD | ATMEL_US_CTS)) { ATMEL_US_DCD 1388 drivers/tty/serial/atmel_serial.c if (status_change & ATMEL_US_DCD) ATMEL_US_DCD 1389 drivers/tty/serial/atmel_serial.c uart_handle_dcd_change(port, !(status & ATMEL_US_DCD));