I think I'm also encountering this bug when trying to connect a usb-wifi dongle (using ndiswrapper) :
$ tail /var/log/messages Apr 13 00:49:41 cheb-laptop kernel: [ 1501.160000] usb 5-1: new high speed USB device using ehci_hcd and address 4 Apr 13 00:49:41 cheb-laptop kernel: [ 1501.304000] usb 5-1: configuration #1 chosen from 1 choice Apr 13 00:49:41 cheb-laptop kernel: [ 1501.316000] p54: LM86 firmware Apr 13 00:49:42 cheb-laptop kernel: [ 1502.548000] prism54usb: probe of 5-1:1.0 failed with error -22 $ dmesg [ 1496.132000] usb 5-5: USB disconnect, address 3 [ 1501.160000] usb 5-1: new high speed USB device using ehci_hcd and address 4 [ 1501.304000] usb 5-1: configuration #1 chosen from 1 choice [ 1501.316000] p54: LM86 firmware [ 1502.548000] prism54usb: eeprom read failed! [ 1502.548000] prism54usb: probe of 5-1:1.0 failed with error -22 [ 1502.548000] usb 5-1: device_add(5-1:1.0) --> -22 $ lsusb Bus 005 Device 003: ID 0baf:0118 U.S. Robotics U5 802.11g Adapter upon connecting, the system would often hang. I can provide more info if required (on e non-hanging cases). -- prism54: eeprom failed https://bugs.launchpad.net/bugs/90902 You received this bug notification because you are a member of Ubuntu Bugs, which is the bug contact for Ubuntu. -- ubuntu-bugs mailing list [EMAIL PROTECTED] https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs