Comment 16 for bug 49251

Martin Hansen's solution won't work in 10.04, debuild command gives me some trouble so I tried installing myself (./congigure, make, make install for all). When I try to start tilp I get the following output (still no connection):

TiLP2 - Version 1.15, (C) 1999-2008 Romain Lievin
THIS PROGRAM COMES WITH ABSOLUTELY NO WARRANTY
PLEASE READ THE DOCUMENTATION FOR DETAILS
built on Oct 22 2010 15:02:36
tilp-INFO: setlocale: en_US.UTF-8
tilp-INFO: bindtextdomain: /usr/local/share/locale/
tilp-INFO: textdomain: tilp2
ticables-INFO: ticables library version 1.3.2
ticables-INFO: setlocale: en_US.UTF-8
ticables-INFO: bindtextdomain: /usr/local/share/locale
ticables-INFO: textdomain: libticables2
ticables-INFO: kernel: 2.6.32-25-generic
tifiles-INFO: tifiles library version 1.1.4
tifiles-INFO: setlocale: en_US.UTF-8
tifiles-INFO: bindtextdomain: /usr/local/share/locale
tifiles-INFO: textdomain: libtifiles2
ticalcs-INFO: ticalcs library version 1.1.6
ticalcs-INFO: setlocale: en_US.UTF-8
ticalcs-INFO: bindtextdomain: /usr/local/share/locale
ticalcs-INFO: textdomain: libticalcs2
ticables-INFO: Check for lib-usb support:
ticables-INFO: usb support: available.
ticables-INFO: Check for lib-usb usability:
ticables-INFO: usb filesystem (/dev/bus/usb/): mounted
ticables-INFO: Check for lib-usb support:
ticables-INFO: usb support: available.
ticables-INFO: Check for lib-usb usability:
ticables-INFO: usb filesystem (/dev/bus/usb/): mounted
tilp-INFO: Msg: illegal operation or argument.
Cause: the program which uses this library is buggy. Fire-up the developer!

What do the last lines mean?