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 pro-
          duce the following output:

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

          The primary difference is that the ioctl.syscon file con-
          tains 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 ex-
          planation 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 reason-
          able 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 Startup-
          Shell(8) for details on performing A/UX file system opera-
          tions from the A/UX Startup shell.



     April, 1990                                                     1

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



     FILES
          /etc/ioctl.syscon

     SEE ALSO
          stty(1), init(1M), termio(7), StartupShell(8).


















































     2                                                     April, 1990