If you are using the newest FX3 chips, it comes with linux driver. ________________________________________ From: [log in to unmask] [[log in to unmask]] on behalf of Javier R. Villazón T. [[log in to unmask]] Sent: Wednesday, January 15, 2014 6:20 PM To: [log in to unmask] Subject: USB driver in SL Hi all I want to develop a USB driver for Cypress chips in SL. would you please point out a tutorial or any other resource to start with? Thank you in advance Javi