NAME

       ttysig - Serial Line Signal Controller

SYNOPSIS

       ttysig [options]

DESCRIPTION

       Interactively  control  serial line output signals (Request To Send, Data Terminal Ready),
       and read the current value of all control signals (Request To Send, Clear  To  Send,  Data
       Set Ready, Data Terminal Ready, Data Carrier Detect, Ring Indicator).

       This  program is part of the Qualcomm Atheros Powerline Toolkit.  See the AMP man page for
       an overview and installation instructions.

OPTIONS

       -s device
              Specify the serial device used.  The default is serial console device "/dev/ttyS0".

       -D value
              Set the serial control line DTR high if value is non-zero, low otherwise.

       -I     Interactive mode.

       -R value
              Set the serial control line RTS high if value is non-zero, low otherwise.

       -r     Print serial control line status on stdout.  This is performed after -R and -D.

       -?,--help
              Print program help summary on stdout.  This  option  takes  precedence  over  other
              options on the command line.

       -?,--version
              Print  program  version  information  on stdout.  This option takes precedence over
              other options on the command line.  Use this option when sending  screen  dumps  to
              Atheros  Technical  Support  so  that  they know exactly which version of the Linux
              Toolkit you are using.

EXAMPLES

       The following example sets DTR  high  and  RTS  low  at  program  start.   The  user  then
       interactively  prints  the current control signal values, and then sets DTR low.  Since no
       serial devices are specified, program defaults are used.

         $ ./ttysig -I -D 1 -R 0
         command (D #, R #, r, q): r
         RTS: -V
         CTS: -V
         DSR: -V
         DTR: +V
         DCD: -V
         RI : -V
         command (D #, R #, r, q): D 0
         command (D #, R #, r, q):

SEE ALSO

       amp(1), int6kdetect(1), int6kuart(1)

CREDITS

        Nathaniel Houghton