Structure at include/linux/serial_core.h, line 249 References: arch/mn10300/kernel/mn10300-serial.c, line 393 drivers/net/usb/hso.c, line 224 drivers/net/usb/hso.c, line 1508 drivers/net/usb/hso.c, line 1585 drivers/net/usb/hso.c, line 1596 drivers/net/usb/hso.c, line 1601 drivers/net/usb/hso.c, line 1634 drivers/net/usb/hso.c, line 1640 drivers/serial/dz.c, line 191 drivers/serial/icom.c, line 740 drivers/serial/ioc3_serial.c, line 1092 drivers/serial/ioc4_serial.c, line 2041 drivers/serial/ioc4_serial.c, line 2343 drivers/serial/sb1250-duart.c, line 342 drivers/serial/serial_core.c, line 1016 drivers/serial/serial_core.c, line 1023 drivers/serial/serial_core.c, line 1034 drivers/serial/serial_core.c, line 1074 drivers/serial/serial_core.c, line 1078 drivers/serial/zs.c, line 543 include/linux/serial_core.h, line 249 include/linux/serial_core.h, line 292