I do not mind if you include a better link with ioctl constants explained or have ideas for examples. I hope you agree the ioctl(2) man page contains much less useful information than http://www.kernel.org/doc/man-pages/online/pages/man4/tty_ioctl.4.html

But I see your point that ioctl is not used solely for tty. Perhaps there could be two links. Removing tty_ioctl constants reference is not an option for me, because the whole stuff is complicated and for me it was very hard to find these console functions for Linux. There is no other way to work with Linux console from Python.