{
  no warnings 'redefine';
  sub Device::SerialPort::carp { };  # no-op
}

[download]

Please don't do it that way. Always localize the overwriting of subroutines:

{
  no warnings 'redefine';
  local *Device::SerialPort::carp = sub { 
    # no-op
  };
  $PortObj = new Device::SerialPort($port, 1) or next; 
}
# carp works again

[download]

In reply to Re^2: Supressing error messages on serial port open in Linux by Corion
in thread Supressing error messages on serial port open in Linux by pashanoid

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