tag	line	file	source code
ECHO	1661	drivers/char/tty_io.c	tp->c_lflag = ISIG | ICANON | ECHO |
ECHO	1672	drivers/char/tty_io.c	tp->c_lflag = ISIG | ICANON | ECHO |
ECHO	226	drivers/char/tty_ioctl.c	if (IS_A_PTY_MASTER(channel)) tty->termios->c_lflag &= ~ECHO;
ECHO	165	include/linux/tty.h	#define L_ECHO(tty)  _L_FLAG((tty),ECHO)