Hello. I am writing an app that needs to control the serial xmit in real-time. What I need is a notification that the TTY output queue fillup (returned by TIOCOUTQ ioctl) have dropped below the specified value. I haven't found anything that can help implementing this. If I can't get an async notification, the sync notification will do too, like, for instance, the tcdrain() call, but with the argument to specify the needed fillup, below which the function will return. If there is nothing like this, then even the notification on every transmitted char will do. But I've found nothing of the above. :(
Any suggestions how the real-time control can be implemented? (please CC me the replies) -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
