Function prototype or declaration at include/linux/tty.h, line 549 References: arch/ia64/hp/sim/simserial.c, line 431 arch/um/drivers/line.c, line 334 drivers/char/ttyprintk.c, line 101 drivers/ipack/devices/ipoctal.c, line 80 drivers/isdn/capi/capi.c, line 1022 drivers/misc/pti.c, line 430 drivers/mmc/card/sdio_uart.c, line 768 drivers/staging/fwserial/fwserial.c, line 1124 drivers/tty/ehv_bytechan.c, line 540 drivers/tty/goldfish.c, line 106 drivers/tty/isicom.c, line 879 drivers/tty/metag_da.c, line 416 drivers/tty/mxser.c, line 1017 drivers/tty/nozomi.c, line 1625 drivers/tty/serial/ifx6x60.c, line 355 drivers/tty/serial/kgdb_nmi.c, line 280 drivers/tty/serial/msm_smd_tty.c, line 133 drivers/tty/tty_port.c, line 563 drivers/tty/tty_port.c, line 595 drivers/usb/class/cdc-acm.c, line 512 drivers/usb/serial/usb-serial.c, line 253 include/linux/tty.h, line 549