tag	line	file	source code
SERIAL_TYPE_CALLOUT	2162	drivers/char/cyclades.c	if (tty->driver.subtype == SERIAL_TYPE_CALLOUT) {
SERIAL_TYPE_CALLOUT	2496	drivers/char/cyclades.c	cy_callout_driver.subtype = SERIAL_TYPE_CALLOUT;
SERIAL_TYPE_CALLOUT	1978	drivers/char/serial.c	if (tty->driver.subtype == SERIAL_TYPE_CALLOUT) {
SERIAL_TYPE_CALLOUT	2447	drivers/char/serial.c	callout_driver.subtype = SERIAL_TYPE_CALLOUT;