Yeah, I had installed the libftdi, and it didn't worked.
But now when I load the modules "usbserial.ko" and "ftdi_sio.ko" it does appear the devices ttyUSB* and it works to use open(), read() and write().
By the way, how do I put modules to be loaded automaticaly on boot? 


Mathias Falconi Kriebel
Estudante de Engenharia de Controle e Automação
Universidade Federal de Minas Gerais

Date: Mon, 29 Aug 2011 19:49:38 -0400
Subject: Re: [Gumstix-users] Xbee module : Unable to enumerate

Did you check that you installed the "VCP" driver (ftdio_sio) and not the D2XX library. (libftdi) I think you want the VCP driver if you wish to 
talk to it via kermit or using open() calls. Otherwise I am guessing you need to use the API which is part of libftdi library.