This is happening to me also. I recently got a Netgear wireless USB adapter (WNDA3100 v2). Each time I connect it, running lsusb hangs my machine and only a reboot can stop it hanging. lsusb runs fine when this adapter is not attached.
I'm running 10.04 64bit: 2.6.32-31-generic #61-Ubuntu SMP Fri Apr 8 18:25:51 UTC 2011 x86_64 GNU/Linux
This is happening to me also. I recently got a Netgear wireless USB adapter (WNDA3100 v2). Each time I connect it, running lsusb hangs my machine and only a reboot can stop it hanging. lsusb runs fine when this adapter is not attached.
I'm running 10.04 64bit: 2.6.32-31-generic #61-Ubuntu SMP Fri Apr 8 18:25:51 UTC 2011 x86_64 GNU/Linux