Hi Ribhi, On 14.10.2013 17:46, Ribhi Kamal wrote: > I'm trying to troubleshoot a problem with vbox 4.2.16 (windows 7 host) > where virtualbox is unable to capture multiple devices when a virtual > machine is starting up. > > In my testing, I'm only trying to attached USB SC readers (I have about > 4 different vendors).
I assume that the USB SC readers are USB 1.1 (or at most 2.0) devices. Correct? Are you plugging any of them by chance into a "USB3 port" (in quotes, as this term is ambiguous, I mean a USB port connected to a USB3/xHCI controller)? > I managed to isolate the problem to a single case where it consistently > fails: > 1- Plug-in three USB SC readers to the host. > 2- Create a VM and add a USB filter for each individual SC reader > 3- ** Ensure that vboxsvc is not running ** > 4- From a command line prompt start the machine virtualbox.exe --startvm > testing > > If I follow the steps above exactly, two SC readers will be captured and > the third will state that it is captured; however, it is not forwarded > to the guest. All USB ports are alike? Or is there a pattern? > I wrote this email back in 4.2.16 and didn't get a chance to send it. So > I'm sending it now to find out if all the changes to the USB code could > *possibly* address that problem. Further, I'm not sure if I should focus > my testing, in relation to this issue, on 4.3 or the latest 4.2. 4.3 doesn't have significantly different code for handling USB compared to 4.2, so the version shouldn't matter much. Klaus > > Any advice would be greatly appreciated. > > Thanks, > -- Ribh _______________________________________________ vbox-dev mailing list [email protected] https://www.virtualbox.org/mailman/listinfo/vbox-dev
