chars_in_buffer 224 drivers/tty/n_tty.c static ssize_t chars_in_buffer(struct tty_struct *tty) chars_in_buffer 1313 drivers/tty/synclink_gt.c static int chars_in_buffer(struct tty_struct *tty) chars_in_buffer 1425 drivers/tty/synclinkmp.c static int chars_in_buffer(struct tty_struct *tty)