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comcontrol (8)
  • >> comcontrol (8) ( FreeBSD man: Команды системного администрирования )

  • BSD mandoc
     

    NAME

    
    
    comcontrol
    
     - control a special tty device
    
     
    

    SYNOPSIS

    special_device [dtrwait number ] [drainwait number ]  

    DESCRIPTION

    The utility is used to examine and modify some of the special characteristics of the specified tty device. If no arguments other than the device (or "-" for stdin) 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.

    The following options are available:

    dtrwait 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. This option needed mainly to set proper recover time after modem reset.
    drainwait number
    Set the time to wait for output drain to the given number. The units are seconds. The default is 5 minutes, 0 means waiting forever. This option needed mainly to specify upper limit of minutes to prevent modem hanging.

    The standard way to use is to put invocations of it in the /etc/rc.d/serial startup script.  

    FILES

    /dev/ttyd?
    dialin devices, hardwired terminals
    /dev/cuad?
    dialout devices

     

    SEE ALSO

    stty(1), sio(4)  

    HISTORY

    Originally part of cgd's com package patches, version 0.2.1, to BSD 386 0.1 Once controlled bidirectional capabilities. Little is left to control now that these capabilities are standard.  

    AUTHORS

    An Christopher G. Demetriou


     

    Index

    NAME
    SYNOPSIS
    DESCRIPTION
    FILES
    SEE ALSO
    HISTORY
    AUTHORS


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