NAME

       zvbi-chains - VBI proxy wrapper

SYNOPSIS

       zvbi-chains [ options ]

DESCRIPTION

       zvbi-chains  is  a  small  wrapper  which  executes  the  VBI application given on the command line while
       overloading several C library calls (such as open(2) and read(2)) so that the application can  be  forced
       to access VBI devices via the VBI proxy instead of device files directly.

       LD_PRELOAD  is  used  to intercept C library calls and call functions in the libzvbi-chain shared library
       instead. Parameters given on the command line (e.g. device path) are passed to the library  by  means  of
       environment variables.

OPTIONS

       -dev path
              Path of a VBI device from which to read data.

       -debug level
              Enables debug output: 0 = off (default); 1 = warnings, 2 = all messages.

       -help  Print a short description of all command line options.

SEE ALSO

       zvbid(1), v4l-conf(8)
       http://zapping.sourceforge.net/  (homepage)

AUTHOR

       Tom Zoerner (tomzo AT users.sourceforge.net)

COPYRIGHT

       Copyright (C) 2003, 2004 Tom Zoerner

       This  program  is  free  software;  you  can  redistribute it and/or modify it under the terms of the GNU
       General Public License as published by the Free Software Foundation; either version 2 of the License,  or
       (at your option) any later version.

       This  program  is  distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even
       the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General  Public
       License for more details.

       You  should have received a copy of the GNU General Public License along with this program; if not, write
       to the Free Software Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.

                                                                                                  zvbi-chains(1)