Minor updates.

share/man/man4/ast.4

@@ -35,7 +35,7 @@
 .\"
 .\"     from: @(#)dca.4	5.2 (Berkeley) 3/27/91
 .\"	from: Id: com.4,v 1.1 1993/08/06 11:19:07 cgd Exp
-.\"	$Id: ast.4,v 1.2 1994/03/31 06:50:08 mycroft Exp $
+.\"	$Id: ast.4,v 1.3 1994/08/11 22:18:46 mycroft Exp $
 .\"
 .Dd March 30, 1994
 .Dt AST 4 i386
@@ -45,7 +45,7 @@
 .Nd
 multiplexing serial communications interface
 .Sh SYNOPSIS
-.Cd "master ast0 at isa? port 0x1a0 tty irq 5 vector astintr"
+.Cd "master ast0 at isa? port 0x1a0 irq 5"
 .Cd "device com2 at ast0 slave 0 flags 1"
 .Cd "device com3 at ast0 slave 1 flags 1"
 .Cd "device com4 at ast0 slave 2 flags 1"
@@ -96,8 +96,4 @@ device.
 The
 .Nm
 driver was written by Roland McGrath and placed into the public
-domain.  It was inspired by the work of Bill Sommerfeld on support for
+domain.
-this hardware in the
-.Nm com
-driver.
-

share/man/man4/man4.i386/ast.4

@@ -35,7 +35,7 @@
 .\"
 .\"     from: @(#)dca.4	5.2 (Berkeley) 3/27/91
 .\"	from: Id: com.4,v 1.1 1993/08/06 11:19:07 cgd Exp
-.\"	$Id: ast.4,v 1.2 1994/03/31 06:50:08 mycroft Exp $
+.\"	$Id: ast.4,v 1.3 1994/08/11 22:18:46 mycroft Exp $
 .\"
 .Dd March 30, 1994
 .Dt AST 4 i386
@@ -45,7 +45,7 @@
 .Nd
 multiplexing serial communications interface
 .Sh SYNOPSIS
-.Cd "master ast0 at isa? port 0x1a0 tty irq 5 vector astintr"
+.Cd "master ast0 at isa? port 0x1a0 irq 5"
 .Cd "device com2 at ast0 slave 0 flags 1"
 .Cd "device com3 at ast0 slave 1 flags 1"
 .Cd "device com4 at ast0 slave 2 flags 1"
@@ -96,8 +96,4 @@ device.
 The
 .Nm
 driver was written by Roland McGrath and placed into the public
-domain.  It was inspired by the work of Bill Sommerfeld on support for
+domain.
-this hardware in the
-.Nm com
-driver.
-

share/man/man4/man4.i386/com.4

@@ -33,7 +33,7 @@
 .\" SUCH DAMAGE.
 .\"
 .\"     from: @(#)dca.4	5.2 (Berkeley) 3/27/91
-.\"	$Id: com.4,v 1.1 1993/08/06 11:19:07 cgd Exp $
+.\"	$Id: com.4,v 1.2 1994/08/11 22:18:49 mycroft Exp $
 .\"
 .Dd August 6, 1993
 .Dt COM 4 i386
@@ -43,11 +43,12 @@
 .Nd
 serial communications interface
 .Sh SYNOPSIS
-.Cd "device com0 at isa? port" \&"IO_COM1\&" tty irq 4 vector comintr
+.Cd "device com0 at isa? port" \&"IO_COM1\&" irq 4
-.Cd "device com1 at isa? port" \&"IO_COM2\&" tty irq 3 vector comintr
+.Cd "device com1 at isa? port" \&"IO_COM2\&" irq 3
+.Cd "device com2 at ast? slave ? flags 1"
 .Sh DESCRIPTION
 The
-.Nm com
+.Nm
 driver provides support for NS8250-, NS16450-, and NS16550-based
 .Tn EIA
 .Tn RS-232C
@@ -58,41 +59,47 @@ buffers, and the NS16550 has a 16 character buffer.
 .Pp
 Input and output for each line may set to one of following baud rates;
 50, 75, 110, 134.5, 150, 300, 600, 1200, 1800, 2400, 4800, 9600,
-19200, 38400, or 57600.
+19200, 38400, 57600, or 115200, or any other baud rate which is a factor
+of 115200.
+.Pp
+If
+.Dq flags 1
+is specified, the
+.Nm
+driver will not set the MCR_IENABLE bit on the UART.  This is mainly for
+use on AST multiport boards, where the MCR_IENABLE bit is used to control
+whether or not the devices use a shared interrupt.
 .Sh FILES
 .Bl -tag -width Pa
 .It Pa /dev/tty00
 .It Pa /dev/tty01
+.It Pa /dev/tty02
 .El
 .Sh DIAGNOSTICS
 .Bl -diag
-.It com%d: silo overflow.
+.It com%d: %d silo overflows
-The single-character input
+The input
 .Dq silo
 has overflowed and incoming data has been lost.
-.It com%d: weird interrupt: %x.
+.It com%d: weird interrupt: iir=%x
 The device has generated an unexpected interrupt
 with the code listed.
 .El
 .Sh SEE ALSO
+.Xr ast 4 ,
+.Xr rtfps 4 ,
 .Xr tty 4
 .Sh HISTORY
 The
 .Nm
-driver is derived from the
+driver was originally derived from the
 .Nm HP9000/300
 .Nm dca
 driver and is
 .Ud
 .Sh BUGS
-Data loss is possible on busy systems with baud rates greater than 300.
+Data loss is possible on busy systems with unbuffered UARTs at high speed.
-The
-.Nm com
-driver is slow, buggy, and not properly tested.
 .Pp
 The name of this driver and the constants which define the locations
-of the various seiral ports are holdovers from
+of the various serial ports are holdovers from
 .Nm DOS .
-.Pp
-As usual, you get what you pay for; cheap NS16550 clones
-generally don't work.

share/man/man4/man4.i386/rtfps.4

@@ -35,7 +35,7 @@
 .\"
 .\"     from: @(#)dca.4	5.2 (Berkeley) 3/27/91
 .\"	from: Id: com.4,v 1.1 1993/08/06 11:19:07 cgd Exp
-.\"	$Id: rtfps.4,v 1.1 1994/08/07 11:05:57 mycroft Exp $
+.\"	$Id: rtfps.4,v 1.2 1994/08/11 22:18:50 mycroft Exp $
 .\"
 .Dd August 7, 1994
 .Dt RTFPS 4 i386
@@ -54,10 +54,12 @@ multiplexing serial communications interface
 The
 .Nm rtfps
 driver provides support for IBM RT PC boards that multiplex together up to four
-.\" EIA
+.Rn EIA
+.Tn RS-232C
+.Pf ( Tn CCITT
+.Tn V.28 )
+or
 .Tn RS-422A
-.\" .Pf ( Tn CCITT
-.\" .Tn V.28 )
 communications interfaces.
 .Pp
 Each

share/man/man4/rtfps.4

@@ -35,7 +35,7 @@
 .\"
 .\"     from: @(#)dca.4	5.2 (Berkeley) 3/27/91
 .\"	from: Id: com.4,v 1.1 1993/08/06 11:19:07 cgd Exp
-.\"	$Id: rtfps.4,v 1.1 1994/08/07 11:05:57 mycroft Exp $
+.\"	$Id: rtfps.4,v 1.2 1994/08/11 22:18:50 mycroft Exp $
 .\"
 .Dd August 7, 1994
 .Dt RTFPS 4 i386
@@ -54,10 +54,12 @@ multiplexing serial communications interface
 The
 .Nm rtfps
 driver provides support for IBM RT PC boards that multiplex together up to four
-.\" EIA
+.Rn EIA
+.Tn RS-232C
+.Pf ( Tn CCITT
+.Tn V.28 )
+or
 .Tn RS-422A
-.\" .Pf ( Tn CCITT
-.\" .Tn V.28 )
 communications interfaces.
 .Pp
 Each