line_put_char      69 arch/um/drivers/line.h extern int line_put_char(struct tty_struct *tty, unsigned char ch);
line_put_char      98 arch/um/drivers/ssl.c 	.put_char 		= line_put_char,
line_put_char     105 arch/um/drivers/stdio_console.c 	.put_char 		= line_put_char,