I have a problem with EHCI in respect to USB 2.0. As long as EHCI remains unactivated, the access from VirtualBox to all USB-Devices are without any problem. However when I activate EHCI nothing seems to fuction at all. For e.g: USB Stick is plugged, Guestsystem (WinXP) tries to install the matching Drive but fails bringing the Error "An error is found and the Device may eventually not function properly" and the access to USB-Stick is not possible. In the Systemcontrol of WinXP, you can find the Device, furnished with Exclamation mark! Deinstallation of Device followed by renewed installation of the Drive etc. do not bring the needed result. So the Device remains inaccessible.
I use following Configuration:
- VirtualBox 1.6.2
Guest Additions 1.6.2
Host System WinXP SR3
Guest System WinXP SR3
Does EHCI (USB 2.0) function at your end? Or is this a Bug in VirtualBox.
Would be thankful, if somebody could give me a hint or tell me how to go about this problem.