webcam Logitech C920 on virtualbox guest machine

Hans Petter Selasky hps at selasky.org
Fri Aug 12 22:06:00 UTC 2016


On 08/12/16 21:36, Otacílio wrote:
> Dears
>
> I have two guest machines on virtualbox 5.0.26:
>
> FreeBSD xareu 10.3-RELEASE-p4 FreeBSD 10.3-RELEASE-p4 #0: Sat May 28
> 09:52:35 UTC 2016
> root at amd64-builder.daemonology.net:/usr/obj/usr/src/sys/GENERIC i386
>
> virtualbox-ose-additions-4.3.38 VirtualBox additions for FreeBSD guests
>
> and
>
> FreeBSD nostromo 11.0-BETA4 FreeBSD 11.0-BETA4 #0 r303759: Fri Aug  5
> 02:26:47 UTC 2016
> root at releng2.nyi.freebsd.org:/usr/obj/usr/src/sys/GENERIC  amd64
>
> virtualbox-ose-additions-5.0.26 VirtualBox additions for FreeBSD guests
>
>
> On both machines when I'm using USB 3.0 xHCI for USB support and plug my
> webcam C920 I get
>
> usb_alloc_device: Failure selecting configuration index
> 0:USB_ERR_STALLED, port 1, addr 1 (ignored)
> ugen0.2: <vendor 0x046d> at usbus0
>
> and no /dev/video0
>
> but, on both machines, when I'm using USB 2.0 EHCI for USB support and
> plug my webcam C920 I get
>

Are there any VM debug logs showing USB errors? It is likely an 
emulation problem.

--HPS



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