I'm working with Gutsy and kvm/qemu. I got around this by modifying the
permission rule in
/etc/udev/rules.d/40-permissions.rules
I added GROUP="plugdev" so that the USB devices are members of that
group:
# USB devices (usbfs replacement)
SUBSYSTEM=="usb_device", MODE="0664", GROUP="plugdev"
Regular user accounts are usually members of that group, which means
that qemu/kvm can be run as a regular user and access the USB devices:
$ sudo /etc/init.d/udev reload
$ sudo find /dev/bus/usb -exec ls -l {} \; | grep plugdev
crw-rw-r-- 1 root plugdev 189, 141 2007-10-31 18:58 014
crw-rw-r-- 1 root plugdev 189, 142 2007-10-31 18:58 015
crw-rw-r-- 1 root plugdev 189, 143 2007-10-31 19:29 016
crw-rw-r-- 1 root plugdev 189, 144 2007-10-31 19:34 017
crw-rw-r-- 1 root plugdev 189, 145 2007-10-31 18:58 018
crw-rw-r-- 1 root plugdev 189, 146 2007-10-31 18:58 019
crw-rw-r-- 1 root plugdev 189, 146 2007-10-31 18:58 /dev/bus/usb/002/019
crw-rw-r-- 1 root plugdev 189, 145 2007-10-31 18:58 /dev/bus/usb/002/018
crw-rw-r-- 1 root plugdev 189, 144 2007-10-31 19:34 /dev/bus/usb/002/017
crw-rw-r-- 1 root plugdev 189, 143 2007-10-31 19:29 /dev/bus/usb/002/016
crw-rw-r-- 1 root plugdev 189, 142 2007-10-31 18:58 /dev/bus/usb/002/015
crw-rw-r-- 1 root plugdev 189, 141 2007-10-31 18:58 /dev/bus/usb/002/014
A group could be created specifically for qemu/kvm but using plugdev
makes more sense since it is there to provide support for hot-plugged
devices.
** Also affects: kvm (Ubuntu)
Importance: Undecided
Status: New
--
usb is not available as normal user
https://bugs.launchpad.net/bugs/60273
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