diff options
author | ache <ache@FreeBSD.org> | 1993-12-10 19:27:16 +0000 |
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committer | ache <ache@FreeBSD.org> | 1993-12-10 19:27:16 +0000 |
commit | 5d03fae86872789f9b375177304500c89bc4b46e (patch) | |
tree | ad9c275309feea1b20578e028c9cc2c5378de639 /sbin/i386 | |
parent | d854ea59900f3b0bf15e32dd27a4e635fcb7d204 (diff) | |
download | FreeBSD-src-5d03fae86872789f9b375177304500c89bc4b46e.zip FreeBSD-src-5d03fae86872789f9b375177304500c89bc4b46e.tar.gz |
Man page added.
Diffstat (limited to 'sbin/i386')
-rw-r--r-- | sbin/i386/comcontrol/Makefile | 2 | ||||
-rw-r--r-- | sbin/i386/comcontrol/comcontrol.8 | 73 |
2 files changed, 74 insertions, 1 deletions
diff --git a/sbin/i386/comcontrol/Makefile b/sbin/i386/comcontrol/Makefile index 4617942..abc8d0a 100644 --- a/sbin/i386/comcontrol/Makefile +++ b/sbin/i386/comcontrol/Makefile @@ -1,6 +1,6 @@ # @(#)Makefile 5.4 (Berkeley) 6/5/91 PROG= comcontrol -NOMAN= noman +MAN8= comcontrol.8 .include <bsd.prog.mk> diff --git a/sbin/i386/comcontrol/comcontrol.8 b/sbin/i386/comcontrol/comcontrol.8 new file mode 100644 index 0000000..4ecce67 --- /dev/null +++ b/sbin/i386/comcontrol/comcontrol.8 @@ -0,0 +1,73 @@ +.Dd December 10, 1993 +.Dt COMCONTROL 8 +.Os FreeBSD +.Sh NAME +.Nm comcontrol +.Nd "control the bidirectional status of a sio port and waiting time after DTR drop" +.Sh SYNOPSIS +.Nm comcontrol +.Ar sio_special_device +.Op Cm bidir | Fl bidir +.Op Cm dtrwait Ar ticks +.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 50 ticks. +.Pp +The standard way to use +.Nm comcontrol +is to put invocations of it in the +.Ar /etc/rc.local +startup script. +.Sh SEE ALSO +.Xr sio 4 +.Sh FILES +.Bl -tag -width Pa +.It Pa /dev/sio?? +.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. +.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. +.Sh HISTORY +Originally part of cgd's com package patches, version 0.2.1, to 386BSD 0.1. |