USB passthrough device ID interpreted as decimal instead of hex

[James Bellinger]

Binary package hint: virt-manager

In 10.04, at least, when adding a device, the second half of lsusb's output is interpreted as decimal, when it is in fact hexidecimal.
As a result, to make a USB passthrough device work, I had to edit the XML file from 0x1d0b (which virt-manager filled in) to 0x7435 for my Sansa Clip (as well as enabling USB in /etc/apparmor.d/abstractions/libvirt-qemu, of course). This is a bug. lsusb's output is hex.

That is to say, virt-manager took lsusb on the host's 0781:7435 and made it 0781:1d0b. Naturally this did not match anything on the host, so the guest got nothing.

I imagine this is not something that would be noticed for devices where the second half is 1 or 2, but for this device it mattered.

[Marc Deslauriers (mdeslaur)]

This is actually a libvirt bug.

[Launchpad Janitor (janitor)]

This bug was fixed in the package libvirt - 0.7.5-5ubuntu7

---------------
libvirt (0.7.5-5ubuntu7) lucid; urgency=low

  * debian/patches/0010-Use-base-16-for-product-vendor.patch: parse the USB
    and PCI product and vendor ids in hexadecimal. This fixes incorrect
    USB ids being used in virt-manager. (LP: #514610)
 -- Marc Deslauriers <email address hidden> Sun, 07 Feb 2010 11:08:23 -0500