virtualbox-ose-4.3.16 USB passthrough does not work

[Miroslav Lachman]

Maurizio Vairani wrote on 02/10/2015 11:58:
> Il 09/02/2015 22:34, Miroslav Lachman ha scritto:
>> Hi,
>> I have virtualbox-ose-4.3.16 and virtualbox-ose-kmod-4.3.16 installed
>> on my PC-BSD (FreeBSD 10.1-RELEASE-p8 amd64 GENERIC). I tried to
>> connect DJ mixer Rane TTM57SL and pass it's USB device (Serato sound
>> card + special HID) to VBox guest Windows 7 Ultimated 32bit.

[...]

>> VirtualBox is running as root.
>>
>> Is USB passthrough supported on this version of VirtualBox?
>>
>> Should I have some special settings on host to allow this device for
>> VBox guest?
>>
>> Miroslav Lachman


> Hi,
> this bug was solved in version 4.3.20_1. Look at
> https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=194196

Thank you for your reply. I upgraded VirtualBox to version 4.3.20_4 but 
now I have a different problem.

I must modified devd/usb.conf to disable loading of kernel modules 
snd_uaudio and uhid, I also disabled webcamd because it was launched by 
USB device connect event. I also tried to stop devd.

The problem is, that Windows 7 in VirtualBox does see the Serato USB 
device as Sound card (listed in Windows Device Manager)

# VBoxManage list usbhost

UUID:               d692318e-eff6-4aeb-8acc-c4a0b8d48dcd
VendorId:           0x13e5 (13E5)
ProductId:          0x0003 (0003)
Revision:           0.0 (0000)
Port:               0
USB version/speed:  0/1
Manufacturer:       Serato
Product:            TTM57SL
SerialNumber:       TTM.01.00
Address:            /dev/ugen1.4
Current State:      Captured

but when I run Serato Scratch Live or drivers install, the device 
disappeared from the guest.


VBoxManage shows it as Busy and with different UUID and different ProductId


# VBoxManage list usbhost

UUID:               7dff504b-adea-4740-b146-0d2c487dd961
VendorId:           0x13e5 (13E5)
ProductId:          0x8003 (8003)
Revision:           0.0 (0000)
Port:               0
USB version/speed:  0/1
Manufacturer:       Serato
Product:            TTM57SL
SerialNumber:       TTM.01.00
Address:            /dev/ugen1.4
Current State:      Busy


These two lines are written in to /var/log/messages in the event of the 
disappearance from guest.

Feb 13 00:02:18 xxx kernel: ugen1.4: <Serato> at usbus1 (disconnected)
Feb 13 00:02:19 xxx kernel: ugen1.4: <Serato> at usbus1


Is there something more I can try to tune up?

Miroslav Lachman