[ubuntu] Quartus USB-Blaster setting help!

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http://ubuntuforums.org – Hi,all! I'm a newbie in using Ubuntu Linux, and just encountered a troublesome question, which I can hardly resolve by myself. I want to do my circuit designing work in the Linux environment and download the design into Altera's DE2 board by the USB cable. The question is, no matter what efforts I make, frustratingly, the programmer of Quartus still can't detect the USB Blaster. I plug in the USB Blaster and tap in the terminal this: lsusb And I get this: Bus 003 Device 003: ID 09fb:6001 Altera I tap in (Hardware)