On Fri, 23 Feb 1996, der Mouse wrote:
> How about using a bit in the minor device number to mean
> "first-open-state device", and have that device support nothing but the
> usual tty-state getting and setting ioctls, and have them affect the
> first-open state rather than the active state?
> 
> Then you just "stty -f /dev/fty04 raw -echo -echonl" or some such to
> modify the first-open state of /dev/tty04.

FreeBSD does almost exactly that.  It seems to work OK, and I think it's
rather elegant.

--apb (Alan Barrett)