tag	line	file	source code
UART_MSR_DCD	422	drivers/char/serial.c	(status & UART_MSR_DCD) ? "on" : "off");
UART_MSR_DCD	424	drivers/char/serial.c	if (status & UART_MSR_DCD)
UART_MSR_DCD	1232	drivers/char/serial.c	| ((status  & UART_MSR_DCD) ? TIOCM_CAR : 0)
UART_MSR_DCD	1678	drivers/char/serial.c	UART_MSR_DCD)))