tag	line	file	source code
SERIAL_TYPE_CALLOUT	2404	drivers/char/cyclades.c	if (tty->driver.subtype == SERIAL_TYPE_CALLOUT) {
SERIAL_TYPE_CALLOUT	2752	drivers/char/cyclades.c	cy_callout_driver.subtype = SERIAL_TYPE_CALLOUT;
SERIAL_TYPE_CALLOUT	2158	drivers/char/serial.c	if (tty->driver.subtype == SERIAL_TYPE_CALLOUT) {
SERIAL_TYPE_CALLOUT	2639	drivers/char/serial.c	callout_driver.subtype = SERIAL_TYPE_CALLOUT;