I have a Ubuntu 10.10 (x86) system which I use to test GNU Radio applications. I have successfully been using a USRP1 with a USB2.0 connection for some time now, yet at some point yesterday it appears to have stopped working.With lsusb I don't even see the device listed anymore. I tried multiple ports with no luck.A USB1.0 mouse seems to work fine.Windows XP seems to recognize the device (no driver, but I see the device ID)USRP works fine on my Fedora machinetried different cables and another USRPThis is a rather old laptop, so part of me thinks the hardware may just be dying. However, Windows still at least recognizes the USRP, so I am hopeing maybe a driver install will fix the problem.So, a USB mouse works fine, but somehow my USB2.0 based USRP stopped working. How can I debug this problem? Can I somehow reinstall the USB2.0 drivers?Thanks!
USB2.0 device not recognized anymore
linux;ubuntu;usb
Well, this was a UDEV issue. The USRP could only be used as root by default, the following will create UDEV rules for a normal user.sudo addgroup usrpsudo usermod -G usrp -a <YOUR_USERNAME>echo 'ACTION==add, BUS==usb, SYSFS{idVendor}==fffe, SYSFS{idProduct}==0002, GROUP:=usrp, MODE:=0660' > tmpfilesudo chown root.root tmpfilesudo mv tmpfile /etc/udev/rules.d/10-usrp.rulesFrom gnuradio.org:Ubuntu uses udev for handling hotplug devices, and does not by default provide non-root access to the USRP.I tried reloading the rules, but I had to reboot in order for everything to work.