tty_ioctl 137 bsp/drv/dev/base/wscons.c return tty_ioctl(tty, cmd, arg); tty_ioctl 115 bsp/drv/dev/serial/serial.c return tty_ioctl(&sc->tty, cmd, arg); tty_ioctl 93 bsp/drv/include/tty.h int tty_ioctl(struct tty *, u_long, void *);