<html> <head> <meta content="text/html; charset=ISO-8859-1" http-equiv="Content-Type"> </head> <body text="#000000" bgcolor="#FFFFFF"> I tried a USB thumb drive, it can be redirected successfully. The device (SanDisk) is marked in blue below. # lsusb Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub Bus 002 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub Bus 001 Device 002: ID 8087:0024 Intel Corp. Integrated Rate Matching Hub Bus 002 Device 002: ID 8087:0024 Intel Corp. Integrated Rate Matching Hub Bus 001 Device 007: ID 0781:5567 SanDisk Corp. Cruzer Blade Bus 001 Device 004: ID 0a5c:217f Broadcom Corp. Bluetooth Controller Bus 001 Device 005: ID 04f2:b221 Chicony Electronics Co., Ltd integrated camera Bus 002 Device 003: ID 17ef:1003 Lenovo Integrated Smart Card Reader Bus 002 Device 004: ID 1483:c007 The device failed to be redirected (ID 1483:c007) is in red above. This device is USB key containing a bank certificate. But it's can be attached as a device to guest on my host machine. And attached is the output of "lsusb -v" Thanks, <div class="moz-cite-prefix">On 01/29/2013 07:35 PM, Hans de Goede wrote: </div> <blockquote cite="mid:5107B400.5060807@redhat.com" type="cite">Hi, On 01/29/2013 10:26 AM, javaon wrote: <blockquote type="cite">My environment: * Ubuntu 12.04 64bit * qemu 1.3.0 * libvirt 1.0.1 * spice 0.12.2 * spice-gtk 0.15 * virt-viewer 0.5.4 When I connected to the VM (a windows 7) as a normal user, I received an error - access denied. (See the attached screenshot) Below is the screen message on client end: $ remote-viewer <a class="moz-txt-link-freetext" href="spice://192.168.7.4:5901">spice://192.168.7.4:5901</a> (remote-viewer:7597): GSpice-WARNING **: Warning no automount-inhibiting implementation available libusb: 0.000000 error [op_open] libusb couldn't open USB device /dev/bus/usb/001/006: Permission denied. libusb: 0.000179 error [op_open] libusb requires write access to USB device nodes. Then I changed to root user, I received an error - libusb_error_io. (See the attached screenshot) Below is the screen message on client end: # remote-viewer <a class="moz-txt-link-freetext" href="spice://192.168.7.4:5901">spice://192.168.7.4:5901</a> (remote-viewer:7836): GSpice-WARNING **: Warning no automount-inhibiting implementation available libusb: 0.000000 error [sysfs_get_active_config_descriptor] short read 21/28 </blockquote> Hmm, it seems that this is something specific to the device you're trying to use, can you please: 1) do "lsusb -v > lsusb.log" with the device plugged into a linux machine, and send me the lsusb.log file generated 2) try with another device, ie a simple usb thumb drive ? Thanks, Hans </blockquote> </body> </html>