> I implemented the serial driver by myself, :). See the attachment. > I didn't save/restore terminal setting in the my_set_termios(). Driver looks fine. > I trace this back till tty_tioctl(..., unsigned long arg), everytime I > type "ENTER" key, > the argument "arg" passed into tty_ioctl() is the address of a termios > structure, which include wrong c_cflag. It seems once the flag is > assigned by uart_set_options the first time, it's never changed. So > even userspace application changed the flag, it will be set back soon. > I'll dig into it. But I still think it's a bug. Which application (see from current->pid) seems to be calling the tty_ioctl with the "wrong flag" ? - To unsubscribe from this list: send the line "unsubscribe linux-serial" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
