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