Copy head@r302406 to stable/11 as part of the 11.0-RELEASE cycle.
Prune svn:mergeinfo from the new branch, as nothing has been merged
here.

Additional commits post-branch will follow.

Approved by: re (implicit)
Sponsored by: The FreeBSD Foundation

Remove sicontrol(8)'s "ttystat".

In the FreeBSD base system, there are only two utilities that use struct
tty, namely pstat and sicontrol. The sicontrol utility calls the
TCSI_TTY ioctl(), which copies struct tty back to userspace.

sicontrol should not have this functionality. The same data is already
provided by pstat. If we really want to be able to export these numbers
through a file descriptor to userspace, we can export struct xtty, which
should provide a better abstraction. The ttystat option was only used as
a debugging aid.

This makes sicontrol compile in the mpsafetty branch.

Reviewed by: peter
Approved by: philip (mentor)

Add more card state dump routines. Decode more bitfields etc.

Remove one of my dead email addresses from a copyright message.

Get debugging macros from sivar.h

Disable some code which magics minor numbers into card/port numbers.
I think we will have to parse this from the device name in the future,
but I need to confer with peter@ about this.

Put sicontrol back in the build.

Troublespotter: dwhite

Per letter dated July 22, 1999 remove 3rd clause of Berkeley derived software
(with permission of addtional copyright holders where appropriate)

Add `_PATH_DEVZERO'.
Use _PATH_* where where possible.

De-K&Rify sicontrol and tidy up a few loose ends. Remove "register".

Use si.h in new location.

Remove the inclusion of device.h. It's no longer there.

$Id$ -> $FreeBSD$

Set the input and output buffer sizes and the input buffer watermarks
dynamically depending on the line speed(s). This should give the old
sizes and watermarks until drivers are changed.

Display the input watermarks in pstat and sicontrol.

Use err(3). Add prototypes.

Revert $FreeBSD$ to $Id$

Make the long-awaited change from $Id$ to $FreeBSD$

This will make a number of things easier in the future, as well as (finally!)
avoiding the Id-smashing problem which has plagued developers for so long.

Boy, I'm glad we're not using sup anymore. This update would have been
insane otherwise.

Cosmetic fix: The usage message was wrong.. One of the commands (mstate)
was listed as taking no args, when in fact it needs a port.

Recognize a new debug option.. "optim" - for watching the L_RINT bypass
and hotchar selection.

Add skeleton manpage, so that make world works......
Correct the naming of the thing.. it's sicontrol, not siconfig as I'm used
to..

Bring in first cut of the user-mode control program for the Specialix driver.
Note that this is pretty light at the moment.. It's been gutted to remove
references to older features no longer in the driver.
Curses-based port monitoring is intended for the future.. :-)
Obtained from: Andy Rutter, <andy@acronym.co.uk>