Virtual Virtual TTYs.

Dave Mielke (
01 May 1998 14:34 EDT

Is there any way for software to be able to simulate being a second
keyboard which is attached to a specifyable virtual tty? I would like
to write some software which takes over, say, tty9, and becomes a
virtual terminal. I know that /dev/vcs9 and/or /dev/vcsa9 can be used
to gain knowledge of the screen content. The two things I do not know
how to do are:

1) How can the software enqueue input so that those characters will be
read from /dev/tty9?

2) How can the software know when the screen has been modified? This
would preferrably be interrupt driven, and would indicate the area
of the screen which has changed.

Dave Mielke     | home: 1-613-726-0014 | Nortel Technologies   | dept: 7H65
856 Grenon Ave. | work: 1-613-765-4671 | P.O. Box 3511, Stn. C | mail: stop 274
Ottawa, Ontario | fax:  1-613-763-9727 | Ottawa, Ontario       | locn: 5E.1.L19
Canada  K2B 6G3 | e-mail: | Canada  K1Y 4H7       | esn:  39-54671

- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to