> Or, maybe the userspace program can receive some sort of interrupt > from the TTY device when it is ready for I/O. > > Perhaps there is another way to avoid continued polling?
TIOCMIWAIT ioctl for modem signals, and just using poll/select() on the tty for I/O. -- To unsubscribe from this list: send the line "unsubscribe linux-embedded" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
