tag	line	file	source code
ICRNL	1793	drivers/char/tty_io.c	tp->c_iflag = ICRNL | IXON;
ICRNL	1799	drivers/char/tty_io.c	tp->c_iflag = ICRNL | IXON;
ICRNL	179	include/linux/tty.h	#define I_ICRNL(tty)  _I_FLAG((tty),ICRNL)