From 32b6b31c1ecc86a803d086f3b73dfd014208de23 Mon Sep 17 00:00:00 2001 From: "Andrey A. Chernov" Date: Mon, 30 May 1994 03:50:01 +0000 Subject: From Bde: o Rewrote lots of it to be more like stty.1. The old one was too verbose and the complicated options no longer exist. --- sbin/comcontrol/comcontrol.8 | 77 ++++++++++++++++---------------------------- 1 file changed, 28 insertions(+), 49 deletions(-) (limited to 'sbin/comcontrol/comcontrol.8') diff --git a/sbin/comcontrol/comcontrol.8 b/sbin/comcontrol/comcontrol.8 index 8da3e0190149..eec9520db62f 100644 --- a/sbin/comcontrol/comcontrol.8 +++ b/sbin/comcontrol/comcontrol.8 @@ -1,47 +1,30 @@ -.Dd December 10, 1993 +.Dd May 15, 1994 .Dt COMCONTROL 8 .Os FreeBSD .Sh NAME .Nm comcontrol -.Nd "control the bidirectional status of a sio port and waiting time after DTR drop" +.Nd control an sio device. .Sh SYNOPSIS .Nm comcontrol .Ar sio_special_device -.Op Cm bidir | Fl bidir -.Op Cm dtrwait Ar ticks +.Op options .Sh DESCRIPTION .Nm Comcontrol -is used to examine and modify the bidirectional status -of a specified -sio communications port -and its waiting time after DTR drop. -By default (if -.Ar sio_special_device -only specified), -.Nm comcontrol -will print the current port state -(if kernel was built with -.Cm options COM_BIDIR ) -as either -.Cm bidir -to indicate that bidirectional operation is enabled or -.Fl bidir -to indicate that it is disabled, string -.Cm dtrwait -and current waiting time in ticks -after DTR drop. -To modify the status of the port or waiting time, simply -specify the desired new state -and/or new waiting time -on the command line. All users with -read access to the -.Ar sio_special_device -can use -.Nm comcontrol -to get the port's status and current waiting time. -Only root can set a port's status and waiting time. -By default, each port is initially unidirectional, waiting time is -2 seconds. +is used to examine and modify some of the special characterstics +of the specified sio device. +If no arguments other than the device are specified, +it prints the settings of all controllable characteristics. +This usage requires only read access on the device. +Only the superuser can change the settings. +.Pp +The following options are available: +.Bl -tag -width Fl +.It Cm dtrwait Ar number +Set the time to wait after dropping DTR +to the given number. +The units are hundredths of a second. +The default is 300 hundredths, i.e., 3 seconds. +.El .Pp The standard way to use .Nm comcontrol @@ -50,25 +33,21 @@ is to put invocations of it in the startup script. .Sh SEE ALSO .Xr sio 4 +.Xr stty 1 . .Sh FILES .Bl -tag -width Pa .It Pa /dev/ttyd? -.Sh DIAGNOSTICS -.Cm TIOCMSBIDIR: Inappropriate ioctl for device. -.Pp -This indicates attempt to change port status on -a non-sio special device file, -or the kernel has not been built with -.Cm options COM_BIDIR . -For more information concerning reconfiguration -of your kernel see -.Ar /usr/src/sys/i386/doc/config_options.doc. +dialin devices. +.It Pa /dev/cua0? +dialout devices. .Sh AUTHOR Christopher G. Demetriou .Sh BUGS -It is strongly recommended that you do *not* -change the bidirectional status of a port while there are programs -using the port. Read that as: if you do, and it breaks, don't yell -at me; that's a really weird thing to do. +.Nm comcontrol +should be named +.Nm siocontrol . +. .Sh HISTORY Originally part of cgd's com package patches, version 0.2.1, to 386BSD 0.1. +Once controlled bidirectional capabilities. Little is left to control now +that these capabilities are standard. -- cgit v1.2.3