id,summary,reporter,owner,description,type,status,component,version,resolution,keywords,cc,guest,host
9666,cannot use USB webcam inside VM,Stéphane Charette,,"I have spent countless hours over the past week trying to find a way to make this work.  But it really is starting to look as if USB webcams don't work in VMs.  I created a USB filter, and when the guest boots up I can initially see I have a /dev/video0 device.  But as soon as I try to use it, I end up with many USB errors logged in the guest, in the VirtualBox machine log, and on the host.  And the /dev/video0 device then disappears from the guest.

For additional details, also see:  https://forums.virtualbox.org/viewtopic.php?f=3&t=44897

A partial list of guest dmesg errors includes:
{{{
[   62.850236] usb 1-1: new high speed USB device number 6 using ehci_hcd
[   62.944329] usb 1-1: device descriptor read/8, error -32
[   63.101419] usb 1-1: device descriptor read/8, error -32
[   63.210336] hub 1-0:1.0: unable to enumerate USB device on port 1
}}}

A partial list of VirtualBox VM log includes:
{{{
00:00:21.444 EHCI: USB Suspended
00:01:03.731 EHCI: USB Operational
00:01:11.294 EHCI: USB Suspended
}}}

A partial list of host dmesg errors includes:
{{{
[72941.802162] uvcvideo: Found UVC 1.00 device <unnamed> (046d:0819)
[72941.902744] input: UVC Camera (046d:0819) as /devices/pci0000:00/0000:00:1d.0/usb2/2-1/2-1.3/2-1.3.4/2-1.3.4:1.0/input/input9
[72980.614942] usb 2-1.3.4: USB disconnect, address 17
[72980.694504] usb 2-1.3.4: new full speed USB device using ehci_hcd and address 18
[72980.774068] usb 2-1.3.4: device descriptor read/64, error -32
[72980.963702] usb 2-1.3.4: device descriptor read/64, error -32
[72981.153249] usb 2-1.3.4: new full speed USB device using ehci_hcd and address 19
}}}",defect,closed,USB,VirtualBox 4.1.2,fixed,usb webcam,,Linux,Linux