tag	line	file	source code
send_break	2218	drivers/char/cyclades.c	send_break(info, HZ/4); /* 1/4 second */
send_break	2225	drivers/char/cyclades.c	send_break(info, arg ? arg*(HZ/10) : HZ/4);
send_break	1897	drivers/char/serial.c	send_break(info, HZ/4);  /* 1/4 second */
send_break	1904	drivers/char/serial.c	send_break(info, arg ? arg*(HZ/10) : HZ/4);