ioctl.syscon(4)                                   ioctl.syscon(4)



NAME
     ioctl.syscon - console terminal settings file

SYNOPSIS
     /etc/ioctl.syscon

DESCRIPTION
     The file /etc/ioctl.syscon contains information about the
     ioctl states of the A/UX virtual terminal console.  This
     file is created by init(1M) when the system is put into
     single-user mode, and it is read by the init process when
     init first comes up.

     The information contained in /etc/ioctl.syscon is used to
     set the terminal modes on the initial console emulator.  It
     is used primarily to preserve reasonable values for terminal
     settings across system reboots (instead of using the
     driver-imposed defaults).

     The ioctl.syscon file consists of 16 colon-separated fields,
     closely resembling the output of the command

        stty -g

     For example, a sample /etc/ioctl.syscon file looks like
     this:

        526:5:bd:3b:0:3:1c:7f:15:4:0:0:0:0:0:0

     while the stty -g command on the console terminal would
     produce the following output:

        526:5:bd:3b:3:1c:7f:15:4:0:0:0

     The primary difference is that the ioctl.syscon file
     contains four additional fields corresponding to the termcb
     structure, an undocumented artifact of System III.  These
     four fields are always zero.  The remaining fields
     correspond to the fields of the termio structure; for an
     explanation of these fields, see termio(7).

     If the /etc/ioctl.syscon file becomes damaged, the system
     may refuse to accept input from the console terminal during
     the boot process.  To remedy this situation, it is safest
     simply to remove the file altogether from within the A/UX
     Startup shell environment, allowing the default settings to
     be established once again.  The driver defaults are
     reasonable and will allow the system to boot successfully.
     A corrected version of the file will then be generated when
     the system is booted into multi-user mode.  See
     StartupShell(8) for details on performing A/UX file system
     operations from the A/UX Startup shell.



January 1992                                                    1

ioctl.syscon(4)                                   ioctl.syscon(4)



FILES
     /etc/ioctl.syscon
SEE ALSO
     termio(7)

     stty(1) in A/UX Command Reference

     init(1M), StartupShell(8) in A/UX System Administrator's
     Reference














































2                                                    January 1992