USB Filter does not distinguish two or more identical USB devices

[Harald Stuebinger]

Actually I want to overcome the problem described in ticket #373. It is really problematic not able to enter backslash and other chars on a German keyboard layout.

I use the Microsoft Natural Ergonomic Keyboard 4000 with a Mac Mini. Host is Mac OS X Leopard.

My idea was the following: I tried to use two identical USB keyboards. One should be connected to the host. The other should be connected to the guest. However, when I enter the USB filter dialog, the virtualbox lists two devices with identical name "Microsoft Natural Ergonomic Keyboard 4000 [0173]". I selected one of both to be used with the guest.

Then, I started the guest Windows XP. However, instead of connecting only one device of both to the guest, the virtualbox connects both USB devices (Not okay). It should be possible to distinguish between identical devices in case of multiplicity.

Then, I tried to use this with Windows Vista x64 as guest. Forget it, it starts to toggling and never starts up.

[Harald Stuebinger]

Meantime I figured out that you can switch a USB device in virtualbox menu between host and guest. Nevertheless, connecting two identical USB devices, one to the host and the other to the guest should be possible, don't know for which application.

[Frank Mehnert]

Could you check if both USB devices have different serial numbers (they should)? If they have, then this is a VBox bug (missing check for the serial number). If not, then it is not possible for VBox to distinguish between the two devices.

[Frank Mehnert]

Actually this sounds like a duplicate of #1424.