tag	line	file	source code
ECHOCTL	1671	drivers/char/tty_io.c	ECHOCTL | ECHOKE;
ECHOCTL	1682	drivers/char/tty_io.c	ECHOCTL | ECHOKE;
ECHOCTL	171	include/linux/tty.h	#define L_ECHOCTL(tty)  _L_FLAG((tty),ECHOCTL)