tag	line	file	source code
ECHO	139	include/linux/tty.h	#define L_ECHO(tty)  _L_FLAG((tty),ECHO)
ECHO	868	kernel/chr_drv/tty_io.c	tp->c_lflag = ISIG | ICANON | ECHO | ECHOCTL | ECHOKE;
ECHO	877	kernel/chr_drv/tty_io.c	tp->c_lflag = ISIG | ICANON | ECHO | ECHOCTL | ECHOKE;
ECHO	142	kernel/chr_drv/tty_ioctl.c	if (IS_A_PTY_MASTER(channel)) tty->termios->c_lflag &= ~ECHO;