> 1. I understand that line discipline can be changed from user space > application by opening the device and doing ioctl with required Line > Discipline ID. Is it possible to do the same from kernel module who > would be communicating with that line discipline ? Not currently. You need something to hold the tty open anyway if you do this. > 2. Is it way to set default line discipline for particular tty device > to required Line Discipline instead of N_TTY one ? No. All tty devices start in N_TTY and return to N_TTY when closed. That's a design assumption in the ldisc handling and in in the tty setup and teardown code paths. There is no API/ABI reason for the assumption so if someone did the work they could remove that assumption. Alan -- 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
